34 results on '"Caner, Murat"'
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2. Investigation of Electrical Properties of Iron Oxide Nanoparticles Bonded with Ionic Solutions for Microwave Ablation Systems
- Author
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Caner Murat, Adnan Kaya, Erdi Keseli, Meltem Kuruş, Sema Demiri Uzun, Mustafa Can, and Mumin Alper Erdoğan
- Abstract
Microwave ablation (MWA) is known as an alternative therapy to surgery to treat tumors. However, MWA-based therapy requires advanced approaches in order to prevent causing damage to healthy tissue around the tumor and selectively target the desired area. Nanoparticles are considered promising tools in biomedicine to fulfill these requirements. This study was carried out in order to analyze the effect of iron oxide nanoparticles on the temperature increment during radiofrequency ablation therapy with different salt solutions including NaCl and KCl as inorganics, and pictic acid (IP6) as organic. Iron oxide nanoparticles (IONPs) with a size of 42 nm, a surface area of 77.1 m2/g, and a high magnetic field absorption capability of 0.893 A/m were synthesized. According to the results, the magnetic nanoparticles from the IP6 solution have a higher number of charges in the recipes, and also, they reacted faster than the commercially available salt solutions like KCl and NaCl since six NaSO3 molecules are in the content of the IP6. With the absorption of 5-20 % higher electromagnetic power density depending on the content of salt solution with IP6 leads to 7-10 % temperature increase under 59 W microwave input power with 2 minutes exposure. This results show that the novelty of a dipole-dipole interaction of organic IP6 with IONPs improve the ablation performance.
- Published
- 2023
3. Design optimization of Halbach array permanent magnet motor to achieve sensorless performance using genetic algorithm
- Author
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Caner, Murat, Gerada, Chris, Asher, Greg, and Özer, Tolga
- Published
- 2016
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4. A Novel 3-D Printed Microwave Probe for ISM Band Ablation Systems of Breast Cancer Treatment Applications
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Merih Palandoken, Caner Murat, Adnan Kaya, and Bing Zhang
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Radiation ,Electrical and Electronic Engineering ,Condensed Matter Physics - Published
- 2022
5. Investigation on thermal performance calculation of two type solar air collectors using artificial neural network
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Caner, Murat, Gedik, Engin, and Keçebaş, Ali
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- 2011
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6. A Novel Ism Band Reflector Type Applicator Design For Microwave Ablation Systems
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Adnan Kaya, Merih Palandoken, Caner Murat, and Irfan Kaya
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Ablation Techniques ,Materials science ,business.industry ,Microwave ablation ,Temperature ,Astrophysics::Instrumentation and Methods for Astrophysics ,Biophysics ,Medicine (miscellaneous) ,Microwave applicator ,Reflector (antenna) ,Astrophysics::Cosmology and Extragalactic Astrophysics ,General Medicine ,Radiation ,03 medical and health sciences ,0302 clinical medicine ,Optics ,Physics::Plasma Physics ,Neoplasms ,030220 oncology & carcinogenesis ,Physics::Atomic and Molecular Clusters ,Humans ,Microwaves ,business ,030217 neurology & neurosurgery ,ISM band - Abstract
In this paper, a radiation performance improved novel applicator is proposed which is called as reflector type microwave applicator as a part of microwave ablation (MWA) system operating at 2.45 GHz with experimentally measured bandwidth of 300 MHz in Industrial Scientific Medical (ISM) band for the local extermination of tumor with highly localized microwave power. The design principle of MW applicator is based on the structural formation of coaxial transmission line fed dielectric loaded with the metallic circular reflector for the near field energy concentration inside the tumorous tissue. To generate localized electromagnetic waves, a novel reflector type microwave applicator is designed by placing an aluminum disk near the 10 mm dielectric radiator section. The proposed applicator design has been numerically studied with finite integration technique (FIT) in CST Microwave Studio to develop the near field radiation pattern affecting the ablation level of tumorous tissue. In the light of performed numerical calculations, maximum SAR (Specific Absorption Rate) value on 1.76 g tumorous sample can be achieved to 208 W/kg under 15 W microwave power accepted by proposed probe. The experimental results confirm that proposed applicator can be utilized highly localized MWA applicator for cancer treatment hence the surface temperature of cylindrical shaped tumor sample which has the dimensions of 14.4 mm diameter and 8 mm height reaches from 25 to 68.3 degrees C in 10 min.
- Published
- 2021
7. Determination of optimal hierarchical fuzzy controller parameters according to loading condition with ANN
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Caner, Murat, Umurkan, Nurettin, Tokat, Sezai, and Üstün, Seydi Vakkas
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- 2008
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8. Design, Optimisation And Implementation Of Low-Voltage Synchronous Reluctance Motor For Solar-Powered Systems
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Boztas, Gullu, Aydogmus, Omur, Caner, Murat, and Guldemir, Hanifi
- Abstract
Synchronous reluctance motors (SynRMs) are an alternative solution in low-cost applications due to some advantages in terms of manufacturing simplicity. This study deals with a new design and implementation of a SynRM so as to operate at low-voltage level produced by solar panels without using any boost-converter. A 4-inch of standard frame size is chosen for as a submersible pump motor. Preparing for the optimisation step, the commercial design software, Infolytica is used to create the first base structure of the SynRM. As the first step the dc-link voltage, rated current, rated speed, winding layout, slots number, number of the rotor barriers and the outer/inner diameters of the stator are determined. In the next step, the base structure is optimised by using a genetic algorithm (GA) developed in Matlab environment. The developed GA script and finite element analysis software are operated together for optimisation of the rotor geometry. A direct torque control algorithm is used to analyse the performance of the designed motor. The designed motor is also manufactured and tested experimentally.
- Published
- 2019
9. Microwave Probe Design for ISM Band Microwave Ablation Systems
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Eren Kaya, Merih Palandoken, Irfan Kaya, Adnan Kaya, and Caner Murat
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Microwave probe ,Microwave imaging ,Materials science ,business.industry ,Microwave power ,Microwave ablation ,Optoelectronics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Radio frequency ,business ,Rf system ,ISM band ,RF probe - Abstract
In this paper, a microwave probe design as a part of microwave ablation (MWA) system is proposed to operate in ISM band for the local annihilation of tumor cells with high microwave power. The applicator design has been numerically studied in order to optimize the RF system performance parameters in compact ergonomic probe size. Because RF probe is to be basically designed for the clinical utilization as an applicator section of MWA system, RF performance parameters of RF probe have been examined for the tumorous cell mimicking models.
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- 2018
10. Optimal Design of Ultra-Premium Efficiency Synchronous Reluctance Motor
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Boztas, Gullu, primary, Aydogmus, Omur, additional, and Caner, Murat, additional
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- 2019
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11. Design, optimisation and implementation of low‐voltage synchronous reluctance motor for solar‐powered systems
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Boztas, Gullu, primary, Aydogmus, Omur, additional, Caner, Murat, additional, and Guldemir, Hanifi, additional
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- 2019
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12. Comparison of Artifıcial Neural Networks and Response Surface Methodology in Stone Mastic Asphalt Using Waste Granite Filler
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Caner, Murat, primary
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- 2017
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13. Reconsidering blurring boundaries: Identifying contemporary urban-rural relationships
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Doğançayir, Caner Murat, Akgün, Aliye Ahu, and Şehir ve Bölge Planlama Ana Bilim Dalı
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Şehircilik ve Bölge Planlama ,Urban and Regional Planning - Abstract
Kentsel ve kırsal alanlar, insan yerleşmeleri içerisinde uzun süredir ayırılmış birimler olarak ele alınmaktadır. Söylemler ve kuramlar, siyasalar ve uygulamalar bu iki yerleşme türünü ayrı ayrı, kısmen temas içinde, kısmen kentsel olanın yararına varolan iki mekan olarak kabul etmiştir. Her ne kadar mekan temelli ilişkilere olan anlayış bu geçersiz görüşleri kısmen arkada bırakmış olsa da, uzam boyunca güçlenen mekansal etkileşimleri kuram haline getirecek ve tetkik edecek aletler sınırlı ve birbirleri ile bağlantısızdırlar. Amaç, hedef, araştırmanın verileri ele alış şekli ve yönteminin sunulmasından sonra bu çalışma 4 bölüm ve sonuç bölümü içerisinde kentsel ve kırsal alanların dinamikleri ve aralarındaki karşılıklı etkileşimleri üzerine güncel anlayışların kopuklukları ve katkıları ile ilgilenmektedir. Kent-kır ilişkilerinin vurgularını ortaya çıkarmak doğrultusunda, ikinci bölümde mekansal etkileşimlerin evrim ve çeşitlenmelerinde ve bu dinamiklerin özellikle kırsal alanlar üzerindeki yansımalarında açığa çıkarılan veya eksik bırakılanları sunmak için söylemler sorgulanmıştır. Kuramsal çerçevelerin ve ampirik çalışmaların sınırları, kent-kır etkileşimleri ile ilintili farklı alanların arasındaki kopukluklar ele alınmıştır. Açıklığa kavuşturulmuş ve vurgulanmış örtüşmeler, gereken önem verilmemiş boşluklar sorunsallaştırılmıştr. Kent-kır ilişkilerini kapsayan sekiz farklı tanımlama ve koşul, literatür araştırması ve taksonomi metodları kullanılarak ele alınmıştır. Kent- kır ilişkilerindeki tanımlarla ilgili farklılıklar ve bunların güncel mekansal etkileşimlerinin temsiliyetleri, belirleyici etkenleri içindeki ortaklaşma ve farklılaşmaları, sosyal ve economic değerlere erişimin izlerini ortaya çıkarmaktadır. Kent- kır bağlantıları her ne kadar mekansal karşılaşmaları iyi derecede tanımlasa ve yansıtsa da, coğrafi çeşitlenmeleri bu kapsamda belirsiz kalmaktadır. Kent-kır ilişkilerine yönelik üçüncü bölümdeki bir diğer literatür araştırması, saha temelli literatürün, mekansal etkileşimlerin daha geniş çerçevesini yansıtmaktaki yetersizliği olarak adlandırılabilecek eksik kısmının üstesinden gelmeyi amaçlamaktadır. Zaman dilimlerinin, bağlantılar ve akışların, yerel, ulusal ve küresel ölçeklerin farklı boyutları değişkenler olarak kullanılmıştır. Yedi küresel bölgenin altındaki saha temelli çalışmaların, etkileşimlerin boyutlarına yaptıkları vurgularn kıyaslanması, küresel, ulusal ve yerel bölgelerin içindeki bağlantı ve akışların çeşitlenen dağılımını yansıtmaktadır. Araştırmanın yorumlanması ve görselleştirilmesinin sonuçları bölgeler içerisindeki coğrafi referanslı mekansal etkileşimlerin düzeyini vermektedir fakat karşılıklı ilişkiler göz önünde bulundurulduğunda sadece varsayımlarda bulunacak bulgular sağlamaktadır. Bu bağlamda, yerleşmeler boyunca işleyen mekansal bağlantıların ve akışların coğrafi rotaları belirsiz kalmaktadır. Kırsal alanların kent- kır ilişkilerinin farklılaşmış içsel ve dışsal güçler üzerindeki yansımaları, kent- kır ilişkileri yaklaşımları ve kırsal tipoloji konseptlerinin ilişkisel savları üzerinden yapılan bir söylem analizi ile dördüncü bölümde ele alınmıştır. İki farklı literaturün araştırmasını, iki akımın söylemlerinin yeniden kavramsallaştırılması takip etmektedir. Bu iki kavramsal temelin karşılaştırılması, kent-kır ilişkilerinin genellenmiş ve kırsal tipolojilerinin özelleşmiş özlerini ortaya çıkarmaktadır. Kent- kır ilişkilerinde ampirik çalışmaların etkinliğinin beşinci bölümdeki incelemesi örnek olay temelli kırsal tipoloji uygulmalarına dayandırılmıştır. Onaltı uygulamadaki vurgulanan mekansal etkileşimlere yönelik söylem analizi ve bu araştırmaların yöntemsel içeriklerindeki değerlendirme şekilleri üzerinden, üçüncü bir yeniden kavramsallaştırmaya oluşturulmuştur. Kırsal tipoloji uygulamalarının sağladığı materyaller, bağlantı ve akışlar doğrultusundaki mekansal etkileşimlerin gözlenmesi, ölçülmesi ve yorumlanması için sınırlıdır. Üç kavramsal temelin çapraz kesiti yaklaşımların, kavramların ve uygulamaların ölçek, dönem, konum ve konuları doğrultusunda özelleşmiş amaçları içerisindeki zengin içerikleri yansıtmaktadır. Buna ek olarak kent-kır ilişkilerinin karşılaşmalarının gidişatının anlaşılmasını güçlendirmek için kavramsal temeller hakkında örtüşen söylemler bulunmaktadır. Diğer yandan mekan temelli bağlantı ve akışların rotalarını ve değişkenliklerini ölçülmesi önündeki engeller, kavramsal çerçevelerin söylemler arasındaki kopukluklar, daha geniş boyutta kent-kır ilişkilerinin derinlemesine ele alınmasını sınırlamaktadır. Çeşitli ilgili araştırma sahalarının çarpışırılması ve kaynaştırılması, insan yerleşmeleri sistemlerinin keşfedilmesi yolunda yardımcı olabilir. Urban and rural areas have been dealt as segregated units within human settlements for a long time. Scripts and theories, policies and their implications have considered these two types of settlements as separately existing spaces that indirectly keep in touch, slightly to the benefit of urban. Although understanding on spatial relations partly left these invalid points of view behind, there are limited and disconnected tools to theorize and examine tightening spatial interactions across the space. Whereafter presenting the aims, objectives, general treatment on data of the research and the methodology, this study deals with the disconnections and contributions of contemporary understanding on urban and rural areas dynamics and their interactions in 4 chapters and concluding chapters interpretations. In order to find out the emphasis given on urban-rural relationships, second chapter taken discourses into query to present revealed or underspecified evolution and diversification of spatial interactions and reflections of these dynamics especially from rural perspective. Limits of theoretical frameworks, empirical researches and disconnections between different fields related with urban-rural interactions are explored. Overlaps as clarified and highlighted facts and gaps as underrated facts are problematized. Eight different definitions and conditions of urban-rural relationships are taken into consideration by literature survey and taxonomy visualization methods. Urban-rural relationships definitional diversity and their representations of contemporary spatial interactions reveal the differences and commonalities among determinants and pathways of access to social and economic values. Although urban-rural linkages particularly define and reflect nested spatial interactions comparatively in best way, geographical variations in this extent remain untold. Another literature survey for urban-rural relationship in third chapter approaches aims to overcome the missing part of case based literature's inefficiency to capture broader picture of spatial interactions. Different aspects of periods, linkages and flows and local, national and global scales used as variables. Comparison of emphases given on these aspects of interactions for selected case based studies that are collected under seven global territories reflect a diverse distribution of linkages and flows within global, national and local territories. Interpretation and illustration of survey results give the degree of geo-referenced spatial interactions within territories but just provide findings for assumptions, considering interrelations. Geographical routes of spatial linkages and flows across settlements in this sense remain vague. Rural areas reflections on diverse external and internal forces of urban-rural relationships dealt in fourth chapter by discourse analysis of urban-rural relationship approaches and rural typology concepts relational arguments. Reconceptualization of two streams of discourses follows the analysis of two different literature surveys. Comparison between these two conceptual grounds reveals generalizing notions of urban-rural relationships and specifying notions of rural typology concepts.Examining efficiency of empirical research in urban-rural relations in fifth chapter depend on case based rural typology applications. Through the discourse analysis on emphasized spatial interactions of applications and evaluation of methodological contents of 16 researches, a third reconceptualization is drawn. Materials supplied by rural typology applications are limited to observe, measure and interpret spatial interactions through linkages and flows. Cross-section of three conceptual grounds in concluding chapter reflects approaches, concepts and applications rich context within their specific purposes according to scale, period, location and topic. In addition, there are overlapping discourses between conceptual grounds to strengthen the understanding on urban-rural interactions trajectories. On the other hand, limits to measure variances and routes of space based linkages and flows, disconnected discourses between theoretical frameworks constrain in-depth understanding for broader urban-rural relationships. Collide and merge of diverse related research fields might help to explore human settlement systems. 147
- Published
- 2014
14. RÜZGAR TÜRBİN MODELLERİ KULLANARAK KASTAMONU İLİ RÜZGAR İLE ELEKTRİK ÜRETİM POTANSİYELİ TAHMİNİ
- Author
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Kaya, Ünal, primary, Caner, Murat, additional, and Oğuz, Yüksel, additional
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- 2016
- Full Text
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15. Permanent magnet machine design trade-offs to achieve sensorless control at high load
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Caner, Murat, primary, Gerada, Chris, additional, and Asher, Greg, additional
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- 2015
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16. Hiyerarşik fuzzy yöntemiyle senkron generatörlerde uyartım kontrolü
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Caner, Murat, Umurkan, Nurettin, and Elektrik Mühendisliği Anabilim Dalı
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Elektrik ve Elektronik Mühendisliği ,Electrical and Electronics Engineering - Abstract
Çok sayıda generatör ve enerji üretim santrallerinin birlikte çalıştığı enterkonnektesistemlerde, güç arzı ve talebinde oluşan sürekli değişmeler generatörlerin senkronizasyonunuve kararlılığını olumsuz yönde etkilemektedir. Çeşitli nedenlerle oluşan bozucu etkilerdendolayı açısal hızda ve rotor açısında düşük frekanslı salınımlar meydana gelmektedir. Enerjiüretim sistemlerindeki koruma ve kontrol sistemlerinin performansının arttırılması enerjininkaliteli ve minimum maliyetle üretilmesi için gereklidir.Enerji üretim kontrollerinin performansının arttırılması için son elli yıldır birçok yöntem vekontrol teorisi ortaya atılmıştır. Bu çalışmaların birçoğunda, klasik kontrol metotları veyadaha önce yapılan çalışmalarla karşılaştırma yapılarak önerilen kontrol metotlarınınperformanslarının test edilmesi sağlanmıştır.Bu çalışmada enerji üretim kontrollerinden biri olan uyartım kontrol sisteminin dinamikperformansının arttırılması amaçlanmıştır. Bunun için literatürde kullanılan kontrolyöntemleri araştırılarak daha önce bu alana uygulanmamış ve performansı test edilmemiş yenibir kontrol metodu olarak ?hiyerarşik fuzzy kontrol metodu? bulunmuştur. Ve bu metodunuyartım kontrol sistemi bileşenlerinden güç sistem stabilizatörüne uygulanmasıdüşünülmüştür.Önerilen metodun kontrol performansı tek makineli sonsuz baraya bağlı sistem modeliüzerinde yapılan simulasyon çalışmalarıyla geleneksel güç sistem stabilizatörü, PID ve ikigirişli klasik fuzzy kontrolör ile karşılaştırılarak test edilmiştir. Simulasyon çalışmaları içinMatlab/Simulink programı kullanılmıştır.Önerilen yöntemde ilave edilen üçüncü giriş değişkeninin kontrolör performansına olumluetki sağladığı simulasyon sonuçlarıyla gösterilmiştir. Bu metodun öne çıkan avantajı ikidenfazla girişe sahip klasik fuzzy kontrol uygulamalarındaki kural patlama probleminin önünegeçilmesidir. Toplam kural sayısı kullanılan üçüncü giriş değişkenine rağmen üstel olarakdeğil lineer olarak artış göstermiştir.Anahtar Kelimeler: Uyartım kontrolü, Hiyerarşik fuzzy kontrol, Güç sistem stabilizatörü,Senkron Generatör, Tek makineli sonsuz baraya bağlı sistemJÜRİ:1. Doç. Dr. Nurettin UMURKAN (Danışman) Kabul Tarihi : 18.09.20062. Prof. Dr. Celal KOCATEPE Sayfa Sayısı : 1553. Prof. Dr. Burhanettin CAN4. Prof. Dr. Fahrettin ARSLAN5. Doç. Dr. İbrahim ŞENOL In interconnected power systems, non-stable trend of power consumption significantly affectsthe stabilization and synchronization of the generators. Various disturbances in power systemsresult in rotor angle and speed oscillations. Since the frequency of these oscillations is lowerthan power network frequency they are termed as low frequency oscillations. The protectionand control performance improvement in power generation systems is of vital importance inorder to produce high electric power quality with low cost.To increase the performance of the energy production controllers, various methods andcontrol theories have been developed for the last 50 years. In most of these studies, theperformance of the proposed methods has been tested via comparing with classical controlmethods and/or previously studied systems.In this study, dynamic performance of excitation control system that is an importantcomponent for power generation is improved. For this reason, hierarchical fuzzy controlmethod which has not been previously applied in excitation control systems is preferred as anovel control method. This control method is thought to applied power system stabilizer thatis component of excitation control system.The performance of the proposed method is tested for single machine infinite bus system andcompared to conventional power system stabilizer, PID controller and standard fuzzycontroller. For simulation purposes Matlab/SIMULINK software has been used.In proposed method positive impact of additional third input variable to controllerperformance is shown in simulation. Noticeable advantage of this method is to avoid ruleexplosion phenomena in fuzzy control applications which has more than two input. As aresult, the total number of rule increases linearly (not exponancialy) in spite of using the thirdinput variable.Keywords: Excitation control, Hierarchical fuzzy control, Power system stabilizer,Synchronous generator, Single machine infinite bus systemJURY:1. Doç. Dr. Nurettin UMURKAN (Supervisor) Date : 18.09.20062. Prof. Dr. Celal KOCATEPE Page : 1553. Prof. Dr. Burhanettin CAN4. Prof. Dr. Fahrettin ARSLAN5. Doç. Dr. İbrahim ŞENOL 155
- Published
- 2006
17. FUZZY RULE TABLE OPTIMIZATION OF POWER SYSTEM STABILIZER USING GENETIC ALGORITHM.
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CANER, Murat, ÜSTÜN, Seydi Vakkas, and OĞUZ, Yüksel
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VOLTAGE regulators , *GENETIC algorithms , *FUZZY control systems , *DAMPING (Mechanics) , *LINEAR machines (Electric machines) - Abstract
This paper investigated the rule table optimization of fuzzy power system stabilizer (FPSS) benefiting from rule basis of related previous studies. In the previous studies, fuzzy rules for Power System Stabilizer (PSS) were obtained by trial and error according to the experience of experts. There were a few rule tables occurred in that way in the literature. In this subject field, five rule tables with a few differences among them were taken. Genetic algorithm (GA) was employed as an optimization method, and single machine infinite bus (SMIB) model was used for simulation system. This work proposed to contribute optimization performance of FPSS adding these rule tables to the initial population of GA. Thus GAs reached an optimum solution more quickly. Simulation studies and the integral of absolute error (IAE) performance results for four loading conditions were shown. The effectiveness of the proposed approach was discussed by comparing it with the five rule tables. [ABSTRACT FROM AUTHOR]
- Published
- 2017
18. Permanent magnet motor design optimisation for sensorless control
- Author
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Caner, Murat, primary, Gerada, Chris, additional, and Asher, Greg, additional
- Published
- 2011
- Full Text
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19. Genetik Algoritma İle Fuzzy PSS'in Kural Tablosu Optimizasyonu.
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Caner, Murat and Gülseren, Uğur
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FUZZY control systems ,MATHEMATICAL optimization ,ELECTROMECHANICAL technology ,OSCILLATIONS ,SYNCHRONOUS generators ,COMPUTER simulation ,GENETIC algorithms - Abstract
Copyright of Afyon Kocatepe University Journal of Science is the property of Afyon Kocatepe University, Faculty of Science & Literature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
20. Mermer Kesme İşleminde Spesifik Enerji Faktörünün ANFIS ve YSA Yöntemleri ile Tahmini.
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Caner, Murat and Akarslan, Emre
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ENERGY consumption , *ARTIFICIAL neural networks , *MARBLE , *CUTTING (Materials) , *CIRCULAR saws - Abstract
In this study, effect of the marble cutting parameters on energy consumption was estimated by using Artificial Neural Network and ANFIS. In both of these estimation methods, marble's hardness, speed of circular saw rotation and cutting speed parameters were used as inputs, specific energy factor, cutting energy in per unit volume was taken as output. The data for training networks were taken from a PC based block cutter machine (S/T) with circular diamond saw blade at Afyon Kocatepe University Labs. These data are cutting parameters of "Denizli Travertine" and "Bilecik Beige" type marbles. Some of these data were used for training and then all data were used for testing stage of the networks. To show the effectiveness of the study, estimated data were compared with experimental data. As conclusion, it was reported that estimated data were quite close to experimental result. [ABSTRACT FROM AUTHOR]
- Published
- 2009
21. Design optimization of Halbach array permanent magnet motor to achieve sensorless performance using genetic algorithm
- Author
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Caner, Murat, Gerada, Christopher, Asher, Greg, Özer, Tolga, Caner, Murat, Gerada, Christopher, Asher, Greg, and Özer, Tolga
- Abstract
Purpose The purpose of this paper is to investigate Halbach array effects in surface mounted permanent magnet machine (SMPM) in terms of both self-sensing and torque capabilities. A comparison between a conventional SMPM, which has radially magnetized rotor, and a Halbach machine has been carried out. Design/methodology/approach The geometric parameters of the two machines have been optimized using genetic algorithm (GA) with looking Pareto. The performance of the machines’ geometry has been calculated by finite element analysis (FEA) software, and two parametric machine models have been realized in Matlab coupled with the FEA and GA toolboxes. Outer volume of the machine, thus copper loss per volume has been kept constant. The Pareto front approach, which simultaneously considers looks two aims, has been used to provide the trade-off between the torque and sensorless performances. Findings The two machines’ results have been compared separately for each loading condition. According to the results, the superiority of the Halbach machine has been shown in terms of sensorless capability compromising torque performance. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value A Halbach machine design optimization has been presented using Pareto optimal set which provides a trade-off comparison between two aims without using weightings. These are sensorless performance and torque capability. There is no such a work about sensorless capability of the Halbach type SMPM in the literature.
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22. Permanent magnet machine design trade-offs to achieve sensorless control at high load
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Caner, Murat, Gerada, Chris, Asher, Greg, Caner, Murat, Gerada, Chris, and Asher, Greg
- Abstract
Purpose The purpose of this paper is to introduce a new design optimization technique for a surface mounted permanent magnet (SMPM) machine to increase sensorless performance at high loadings by compromising with torque capability. Design/methodology/approach An SMPM parametric machine model was created and analysed by finite element analysis (FEA) software by means of the Matlab environment. Eight geometric parameters of the machine were optimized using genetic algorithms (GAs). The outer volume of the machine, namely copper loss per volume, was kept constant. In order to prevent sensorless performance loss at high loading, an optimization process was realized using two loading stages: maximum torque with minimum ripple at nominal load and maximum self-sensing capability at twice load. In order to show the effectiveness of the proposed technique, the obtained results were compared with the classical one-stage optimization realized for each loading condition separately. Findings With the proposed technique, fairly good performance results of the optimization were obtained when compared with the one-stage optimizations. Using the proposed technique, sensorless performance of the motor was highly increased by compromising torque capability for high loading. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value In related literature, design optimization studies for the sensorless capability of SMPM motor are very few. By increasing optimization performance, new proposed technique provides to achieve good result at high load for sensorless performance compromising torque capability.
- Full Text
- View/download PDF
23. Permanent magnet machine design trade-offs to achieve sensorless control at high load
- Author
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Caner, Murat, Gerada, Chris, Asher, Greg, Caner, Murat, Gerada, Chris, and Asher, Greg
- Abstract
Purpose The purpose of this paper is to introduce a new design optimization technique for a surface mounted permanent magnet (SMPM) machine to increase sensorless performance at high loadings by compromising with torque capability. Design/methodology/approach An SMPM parametric machine model was created and analysed by finite element analysis (FEA) software by means of the Matlab environment. Eight geometric parameters of the machine were optimized using genetic algorithms (GAs). The outer volume of the machine, namely copper loss per volume, was kept constant. In order to prevent sensorless performance loss at high loading, an optimization process was realized using two loading stages: maximum torque with minimum ripple at nominal load and maximum self-sensing capability at twice load. In order to show the effectiveness of the proposed technique, the obtained results were compared with the classical one-stage optimization realized for each loading condition separately. Findings With the proposed technique, fairly good performance results of the optimization were obtained when compared with the one-stage optimizations. Using the proposed technique, sensorless performance of the motor was highly increased by compromising torque capability for high loading. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value In related literature, design optimization studies for the sensorless capability of SMPM motor are very few. By increasing optimization performance, new proposed technique provides to achieve good result at high load for sensorless performance compromising torque capability.
- Full Text
- View/download PDF
24. Design optimization of Halbach array permanent magnet motor to achieve sensorless performance using genetic algorithm
- Author
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Caner, Murat, Gerada, Christopher, Asher, Greg, Özer, Tolga, Caner, Murat, Gerada, Christopher, Asher, Greg, and Özer, Tolga
- Abstract
Purpose The purpose of this paper is to investigate Halbach array effects in surface mounted permanent magnet machine (SMPM) in terms of both self-sensing and torque capabilities. A comparison between a conventional SMPM, which has radially magnetized rotor, and a Halbach machine has been carried out. Design/methodology/approach The geometric parameters of the two machines have been optimized using genetic algorithm (GA) with looking Pareto. The performance of the machines’ geometry has been calculated by finite element analysis (FEA) software, and two parametric machine models have been realized in Matlab coupled with the FEA and GA toolboxes. Outer volume of the machine, thus copper loss per volume has been kept constant. The Pareto front approach, which simultaneously considers looks two aims, has been used to provide the trade-off between the torque and sensorless performances. Findings The two machines’ results have been compared separately for each loading condition. According to the results, the superiority of the Halbach machine has been shown in terms of sensorless capability compromising torque performance. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value A Halbach machine design optimization has been presented using Pareto optimal set which provides a trade-off comparison between two aims without using weightings. These are sensorless performance and torque capability. There is no such a work about sensorless capability of the Halbach type SMPM in the literature.
- Full Text
- View/download PDF
25. Design optimization of Halbach array permanent magnet motor to achieve sensorless performance using genetic algorithm
- Author
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Caner, Murat, Gerada, Christopher, Asher, Greg, Özer, Tolga, Caner, Murat, Gerada, Christopher, Asher, Greg, and Özer, Tolga
- Abstract
Purpose The purpose of this paper is to investigate Halbach array effects in surface mounted permanent magnet machine (SMPM) in terms of both self-sensing and torque capabilities. A comparison between a conventional SMPM, which has radially magnetized rotor, and a Halbach machine has been carried out. Design/methodology/approach The geometric parameters of the two machines have been optimized using genetic algorithm (GA) with looking Pareto. The performance of the machines’ geometry has been calculated by finite element analysis (FEA) software, and two parametric machine models have been realized in Matlab coupled with the FEA and GA toolboxes. Outer volume of the machine, thus copper loss per volume has been kept constant. The Pareto front approach, which simultaneously considers looks two aims, has been used to provide the trade-off between the torque and sensorless performances. Findings The two machines’ results have been compared separately for each loading condition. According to the results, the superiority of the Halbach machine has been shown in terms of sensorless capability compromising torque performance. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value A Halbach machine design optimization has been presented using Pareto optimal set which provides a trade-off comparison between two aims without using weightings. These are sensorless performance and torque capability. There is no such a work about sensorless capability of the Halbach type SMPM in the literature.
- Full Text
- View/download PDF
26. Permanent magnet machine design trade-offs to achieve sensorless control at high load
- Author
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Caner, Murat, Gerada, Chris, Asher, Greg, Caner, Murat, Gerada, Chris, and Asher, Greg
- Abstract
Purpose The purpose of this paper is to introduce a new design optimization technique for a surface mounted permanent magnet (SMPM) machine to increase sensorless performance at high loadings by compromising with torque capability. Design/methodology/approach An SMPM parametric machine model was created and analysed by finite element analysis (FEA) software by means of the Matlab environment. Eight geometric parameters of the machine were optimized using genetic algorithms (GAs). The outer volume of the machine, namely copper loss per volume, was kept constant. In order to prevent sensorless performance loss at high loading, an optimization process was realized using two loading stages: maximum torque with minimum ripple at nominal load and maximum self-sensing capability at twice load. In order to show the effectiveness of the proposed technique, the obtained results were compared with the classical one-stage optimization realized for each loading condition separately. Findings With the proposed technique, fairly good performance results of the optimization were obtained when compared with the one-stage optimizations. Using the proposed technique, sensorless performance of the motor was highly increased by compromising torque capability for high loading. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value In related literature, design optimization studies for the sensorless capability of SMPM motor are very few. By increasing optimization performance, new proposed technique provides to achieve good result at high load for sensorless performance compromising torque capability.
- Full Text
- View/download PDF
27. Permanent magnet machine design trade-offs to achieve sensorless control at high load
- Author
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Caner, Murat, Gerada, Chris, Asher, Greg, Caner, Murat, Gerada, Chris, and Asher, Greg
- Abstract
Purpose The purpose of this paper is to introduce a new design optimization technique for a surface mounted permanent magnet (SMPM) machine to increase sensorless performance at high loadings by compromising with torque capability. Design/methodology/approach An SMPM parametric machine model was created and analysed by finite element analysis (FEA) software by means of the Matlab environment. Eight geometric parameters of the machine were optimized using genetic algorithms (GAs). The outer volume of the machine, namely copper loss per volume, was kept constant. In order to prevent sensorless performance loss at high loading, an optimization process was realized using two loading stages: maximum torque with minimum ripple at nominal load and maximum self-sensing capability at twice load. In order to show the effectiveness of the proposed technique, the obtained results were compared with the classical one-stage optimization realized for each loading condition separately. Findings With the proposed technique, fairly good performance results of the optimization were obtained when compared with the one-stage optimizations. Using the proposed technique, sensorless performance of the motor was highly increased by compromising torque capability for high loading. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value In related literature, design optimization studies for the sensorless capability of SMPM motor are very few. By increasing optimization performance, new proposed technique provides to achieve good result at high load for sensorless performance compromising torque capability.
- Full Text
- View/download PDF
28. Design optimization of Halbach array permanent magnet motor to achieve sensorless performance using genetic algorithm
- Author
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Caner, Murat, Gerada, Christopher, Asher, Greg, Özer, Tolga, Caner, Murat, Gerada, Christopher, Asher, Greg, and Özer, Tolga
- Abstract
Purpose The purpose of this paper is to investigate Halbach array effects in surface mounted permanent magnet machine (SMPM) in terms of both self-sensing and torque capabilities. A comparison between a conventional SMPM, which has radially magnetized rotor, and a Halbach machine has been carried out. Design/methodology/approach The geometric parameters of the two machines have been optimized using genetic algorithm (GA) with looking Pareto. The performance of the machines’ geometry has been calculated by finite element analysis (FEA) software, and two parametric machine models have been realized in Matlab coupled with the FEA and GA toolboxes. Outer volume of the machine, thus copper loss per volume has been kept constant. The Pareto front approach, which simultaneously considers looks two aims, has been used to provide the trade-off between the torque and sensorless performances. Findings The two machines’ results have been compared separately for each loading condition. According to the results, the superiority of the Halbach machine has been shown in terms of sensorless capability compromising torque performance. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value A Halbach machine design optimization has been presented using Pareto optimal set which provides a trade-off comparison between two aims without using weightings. These are sensorless performance and torque capability. There is no such a work about sensorless capability of the Halbach type SMPM in the literature.
- Full Text
- View/download PDF
29. Permanent magnet machine design trade-offs to achieve sensorless control at high load
- Author
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Caner, Murat, Gerada, Chris, Asher, Greg, Caner, Murat, Gerada, Chris, and Asher, Greg
- Abstract
Purpose The purpose of this paper is to introduce a new design optimization technique for a surface mounted permanent magnet (SMPM) machine to increase sensorless performance at high loadings by compromising with torque capability. Design/methodology/approach An SMPM parametric machine model was created and analysed by finite element analysis (FEA) software by means of the Matlab environment. Eight geometric parameters of the machine were optimized using genetic algorithms (GAs). The outer volume of the machine, namely copper loss per volume, was kept constant. In order to prevent sensorless performance loss at high loading, an optimization process was realized using two loading stages: maximum torque with minimum ripple at nominal load and maximum self-sensing capability at twice load. In order to show the effectiveness of the proposed technique, the obtained results were compared with the classical one-stage optimization realized for each loading condition separately. Findings With the proposed technique, fairly good performance results of the optimization were obtained when compared with the one-stage optimizations. Using the proposed technique, sensorless performance of the motor was highly increased by compromising torque capability for high loading. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value In related literature, design optimization studies for the sensorless capability of SMPM motor are very few. By increasing optimization performance, new proposed technique provides to achieve good result at high load for sensorless performance compromising torque capability.
- Full Text
- View/download PDF
30. Design optimization of Halbach array permanent magnet motor to achieve sensorless performance using genetic algorithm
- Author
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Caner, Murat, Gerada, Christopher, Asher, Greg, Özer, Tolga, Caner, Murat, Gerada, Christopher, Asher, Greg, and Özer, Tolga
- Abstract
Purpose The purpose of this paper is to investigate Halbach array effects in surface mounted permanent magnet machine (SMPM) in terms of both self-sensing and torque capabilities. A comparison between a conventional SMPM, which has radially magnetized rotor, and a Halbach machine has been carried out. Design/methodology/approach The geometric parameters of the two machines have been optimized using genetic algorithm (GA) with looking Pareto. The performance of the machines’ geometry has been calculated by finite element analysis (FEA) software, and two parametric machine models have been realized in Matlab coupled with the FEA and GA toolboxes. Outer volume of the machine, thus copper loss per volume has been kept constant. The Pareto front approach, which simultaneously considers looks two aims, has been used to provide the trade-off between the torque and sensorless performances. Findings The two machines’ results have been compared separately for each loading condition. According to the results, the superiority of the Halbach machine has been shown in terms of sensorless capability compromising torque performance. Additionally, this paper shows that the self-sensing properties of a SMPM machine should be considered at the design stage of the machine. Originality/value A Halbach machine design optimization has been presented using Pareto optimal set which provides a trade-off comparison between two aims without using weightings. These are sensorless performance and torque capability. There is no such a work about sensorless capability of the Halbach type SMPM in the literature.
- Full Text
- View/download PDF
31. Motor dizaynı için optimizasyon algoritması hazırlanması
- Author
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Özlü, Özkan, Caner, Murat, and Elektrik Eğitimi Anabilim Dalı
- Subjects
Teknik Eğitim ,Technical Education ,Electric motors ,Optimization techniques - Abstract
Bu araştırmada, kuş ve balık sürülerinin eş zamanlı hareketlerinden esinlenerek geliştirilmiş, parçacık sürü optimizasyonu algoritmasının bir türevi olan, pasif katılımlı parçacık sürü optimizasyonu metodunu kullanarak daimi mıknatıslı senkron motor tasarımının sensörsüz kontrol açısından optimize edilmesi amaçlanmıştır.Pasif katılımlı parçacık sürü optimizasyonu algoritması MATLAB ortamında geliştirilerek optimizasyon algoritmalarının testlerinde kullanılan, Rastrigin, Schwefel ve Michalewicz gibi, bir takım iyi-bilinen, doğrusal olmayan fonksiyonlar üzerinde sınanmış ve başarılı sonuçların alındığı gözlenmiştir. Yazılan optimizasyon algoritması, sonlu elemanlar tabanlı, motor tasarımı yapabilen ve performansını ölçebilen bir simülasyon yazılımı ile haberleşmeyi sağlayan, yine MATLAB ortamında önceden yazılmış aracı bir yazılıma adapte edilmiştir.Motorun dış geometrisi sabit tutularak iç geometrisinde belirlenen sekiz değişken optimize edilmiştir. Tork ve sensörsüz kontrol kabiliyetini artırmak olmak üzere, iki farklı amaç için tasarım optimizasyonu yapılmıştır. Daimi mıknatıslı senkron motorların sensörsüz kontrol yeteneği optimize edilirken tork performansı düşmektedir. Yapılan üçüncü bir tasarım optimizasyonunda ise aynı dış geometriye sahip olan motorun ürettiği tork değerinden daha az taviz vererek sensörsüz kontrol yeteneği arttırılmaya çalışılmıştır.Yapılan her bir tasarım için performans sonuçları verilerek karşılaştırılmıştır. İlave olarak, her bir tasarım değişkeninin ±%5-10 değişimlerine göre performansa etkileri de incelenmiştir. In this study, an optimization of a permanent magnet synchronous motor design has been aimed in terms of sensorless control using another variation of particle swarm optimization algorithm, which was developed inspired by bird or fish school moving synchronously, particle swarm optimization with passive congregation.Particle swarm optimization with passive congregation algorithm first was developed on MATLAB environment and then examined on some well-known non-linear functions such as Rastrigin, Schwefel and Michalewicz which are widely used for examination of optimization algorithms. The algorithm written was then adapted to software, previously developed on MATLAB environment again, that can obtain communication with an external finite elements analysis based, capable of designing and measuring performance of a motor.The given eight interior variables have been optimized by fixing the outer geometry of the motor. In order to enhance torque and sensorless control capability, design optimizations has been made for two different objectives. While optimizing the sensorless control capability of the permanent magnet synchronous motor, torque performance decreases. It has been tried to increase sensorless control capability by compromising torque value too little with a third design optimization.The performance results for each design optimization have been given and compared. In addition to this, the effects of ±5-10% change for each design variable have been investigated.
- Published
- 2012
32. Laboratuvar ölçekli güç sistem modelinin gerçek zamanlı tasarımı ve uygulaması
- Author
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Çankaya, Hakan, Yönetken, Ahmet, Caner, Murat, and Elektrik Eğitimi Anabilim Dalı
- Subjects
Teknik Eğitim ,Elektrik ve Elektronik Mühendisliği ,Technical Education ,Electrical and Electronics Engineering - Abstract
Bu araştırmada, laboratuvar ölçekli güç sistem modelinin gerçek zamanlı kurulumu yapılmıştır. Kurulumu yapılan bu sistem bilgisayarla gerçek zamanlı denetlenen kapalı çevrim bir sistemdir. Bu güç sisteminde gözlenmek istenen değerlerimiz senkron generatör tarafından üretilen gerilim ve sistem devir sayısıdır. Sistemle bilgisayar arasındaki bağlantı PCI 1716 DAQ kartının bilgisayar donanımına bağlantısı yapılarak sağlanmıştır. MATLAB 10.0 versiyonu kullanılarak bir senkron generatörün devir ve yük çeşidine bağlı olarak gerilim denetimi yapılmıştır. MATLAB'de Real Time ve Simulink Toolbox kullanılarak bir kontrol modeli oluşturulmuştur. Bu kontrol modelinde program kütüphanesinde bulunan PID denetleyici kullanılmıştır. Gerilim ve devir referans değer ile karşılaştırılarak ortaya çıkan hata PID denetleyiciye uygulanmış ve sistem cevabı veri şeklinde elde edilmiştir. Bu veriler kullanılarak sistem cevap eğrileri MATLAB programında çizdirilmiştir.Sistemde bozucu etki olarak omik, endüktif ve kapasitif yükler kullanılmıştır. Sistem ilk olarak yüksüz (boşta) çalıştırılmıştır. İkincisinde sadece dirençlerden oluşan üç fazlı, yıldız bağlı yük devreye alınmıştır. Üçüncüsünde direnç ve bobinlerden oluşan üç fazlı, yıldız bağlı yük devreye alınmıştır. Dördüncüsünde direnç ve kondansatörlerden oluşan üç fazlı, yıldız bağlı yük devreye alınmıştır. Beşinci ve son çalışmada ise direnç, bobin ve kondansatörlerden oluşan üç fazlı, yıldız bağlı yük devreye alınmıştır.Bu çalışmalarda sistemin gerilim ve devir sayısı grafikleri incelenmiş ve sisteme uygulanan PID denetimle senkron generatörün gerilim ve devir değerinin referans değerine kısa bir sürede yerleştiği grafiklerden anlaşılmıştır.DC Motorun devir sayısının ayarlanması ve senkron generatörün uyartım akımı optik izoleli analog çıkış kartı tarafından sağlanmıştır. Bu kart denetim modelinin analog çıkışından gelen sinyallere göre DC motor sürücüsünün kontrol sinyalini ve senkron generatörün uyartımını ayarlar. Kartın özelliği deneysel sistemi kartlarımızdan izole etmesidir. In this research, laboratory-scale model of the power system has been the installation of real-time. Installation of this system is in real-time computer controlled closed-loop system. It was noted the power system voltage and system transfer is the desired number of values generated by the synchronous generator. The connection between the system and computer has been provided by PCI 1716 DAQ card, computer hardware connection. A synchronous machine speed and load has been made by using the MATLAB version 10.0, depending on the type of voltage control. A control model has been created by using Real Time Toolbox and Simulink at MATLAB. PID controller which is being in the library program is used in this control model. Voltage and speed in comparison with the reference value is applied and the resulting error of PID controller in the form of system response data has been obtained. These data are plotted in MATLAB using the system response curves.Disruptive effect on the system as ohmic, inductive, capacitive loads have been used. The system was first activated when there is no load (empty) operated. The second consisting only of resistors and three phase, star-connected load has been commissioned. Of the third resistance and the coil of three-phase, star-connected load has been commissioned. Resistors and capacitors of the fourth three-phase, star-connected load has been commissioned. The fifth and last study, the resistor, inductor and capacitors of the three-phase, star-connected load has been commissioned.In these studies, the number of cycles of the system voltage and the PID charts are examined and it has been registered that applied to the system auditing value of the reference value of the synchronous machine voltage and speed in a short time settled revealed graphics.Revolution speed setting of DC motor and alerting current of synchronous generator are provided by the optically isolated analog output card. This card sets control signal of DC motor and the alerting of synchronous generator according to signals which come from the analog output of the control model. The main charcteristic of this card is isolation of experimental system from cards.
- Published
- 2011
33. Genetik algoritma ile fuzzy PSS'in kural tablosu optimizasyonu
- Author
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Gülseren, Uğur, Caner, Murat, and Elektrik Eğitimi Anabilim Dalı
- Subjects
Teknik Eğitim ,Elektrik ve Elektronik Mühendisliği ,Technical Education ,Electrical and Electronics Engineering - Abstract
Güç sistemleri karmaşık ve nonlineer sistemlerdir. Bu yüzden bu sistemlerde sık sık olumsuz çalışma koşulları nedeniyle düşük frekanslı elektromekanik osilasyonlar oluşmaktadır.Bu tezde generatör rotor açı kararlılığını koruyarak düşük frekanslı elektromekanik osilasyonların sönümlendirilmesi ve generatör uyartım kontrol sisteminin dinamik performansının arttırılması amaçlanmıştır. Bu amaçla literatürde daha önce Fuzzy Güç Sistem Stabilizatörü (FPSS) için geliştirilen beş adet kural tablosu incelenmiş ve bunlardan yararlanılarak genetik algoritma ile FPSS'in kural tablosu optimizasyonu gerçekleştirilmiştir. Simülasyon çalışmaları için Matlab programı kullanılmıştır. Kontrolörün etkinliğini test etmek amacıyla genetik algoritma ile kural tablosu optimize edilen FPSS`in simülasyon sonuçları ile beş adet kural tablosunu kullanan FPSS simülasyon sonuçları karşılaştırılmıştır.Simülasyon çalışmaları sonucu elde edilen çıkış gerilimi, güç açısı, elektriksel çıkış momenti, açısal hız parametrelerinin zamana göre değişimleri karşılaştırmalı olarak gösterilmiş. Elde edilen sonuçlardan Genetik Güç Sistem Stabilizatörünün (GPSS) performansının FPSS'e göre daha iyi olduğu görülmüştür. Power systems are generally complex and non-linear systems. So, because of negative working conditions, low frequency electromecanic oscillations often come into existence.In this thesis, it is focused on damping the low frequency electromechanic oscillations by using the stability of the generator rotor angle and increasing dynamic performance of generator excitation systems. Therefore it was examined five pieces of rules table which were devoloped for fuzzy logic power system stabilizers (FPSS) used in literature before, and FPSS?s rule table optimization was done by using genetic algorithm. Matlab program was used for simulation studies. To test the effectiveness of the controller, the simulation results of FPSS whose rule table was optimized using genetic algorithm were compared with the simulation results of FPSS which use the five pieces of rule tables.It is shown comparatively the output voltage, power angel, electrical output moment and changes of angular speed parameters due to time that were gained with simulation studies. Due to the results gained it is seen that the performance of GPSS (Genetic Power System Stabilizer) is better then FPSS.
- Published
- 2010
34. Yapay sinir ağları ile mermer kesme makinesinde spesifik enerjinin tahmini
- Author
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Akarslan, Emre, Caner, Murat, and Elektrik Eğitimi Anabilim Dalı
- Subjects
Teknik Eğitim ,Energy ,Artificial neural networks ,Elektrik ve Elektronik Mühendisliği ,Technical Education ,Enerji ,Electrical and Electronics Engineering ,Matlab - Abstract
Bu çalışmada iki farklı yapay sinir ağı (YSA) uygulaması gerçekleştirilmiştir. Her iki uygulamada da yapay sinir ağı uygulaması için Matlab programı kullanılmıştır. Birinci uygulamada YSA metodu kullanılarak, mermer kesme işleminde spesifik enerji (SE) tahmin edilmeye çalışılmıştır. Bu amaçla, Matlab'da önce kod tabanlı program yazılmış, sonra ?nftool? araç kutusu kullanılmıştır. Kesme deneylerinde kullanılan, kesme hızı, testere dönüş hızı ve mermerin sertliği giriş verileri olarak alınmış, bu parametrelere göre spesifik enerji faktörü tahmin edilmiştir. Yapılan uygulama sonucunda, YSA ile yapılan tahminlerin, deneyler sonucu elde edilen verilere oldukça yakın olduğu görülmüştür.İkinci uygulamada, yine spesifik enerji YSA kullanılarak tahmin edilmiştir. Ancak, bu uygulamada spesifik enerjiyi etkileyen dört parametre dikkate alınmıştır. Bu amaçla, kesme işleminde kullanılan motorun gücü de spesifik enerji değerinin tahmini için hesaba katılmıştır. Ayrıca YSA'nın eğitiminde verilerin birbirine yakınlığının eğitimi kolaylaştıracağı düşünüldüğünden, bazı parametrelerde normalizasyon işlemi gerçekleştirilmiştir. Yapılan uygulama sonucunda, YSA ile yapılan tahminlerin, deneyler sonucu elde edilen verilere oldukça yakın olduğu görülmüştür. In this study, two different artificial neural network (ANN) applications were realized. Matlab programme was used for Artificial neural network application in both implementations. In first application, the specific energy factor (SE) was tried to estimate in marble cutting operation, by using ANN method. For this purpose, code based program was written first, then ?nftool? toolbox was used in Matlab. Cutting speed, speed of circular saw rotation and marble?s hardness, which were used in cutting experiments, were taken as inputs, and according to these parameters, the specific energy factor was estimated. As conclusion, it was reported that estimated data were quite close to experimental result.In second application, spesific energy was estimated by using ANN, again. But, in this application, four different parameter were taken into account which effect the spesific energy. For this purpose, motor power using for cutting process was allowed for to estimation of spesific energy. In addition, normalization transaction was applied in some parameter, because of that could expedite to ANN?s training. As conclusion, it was reported that estimated data were quite close to experimental result.
- Published
- 2009
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