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26 results on '"Ramanathan, Prabhu"'

4. LQR PI Controller Design for First-Order Time-Delay Systems

Author

Harshavardhana Reddy, K., Ramanathan, Prabhu, Ramasamy, Sudha, Sanjeevikumar, P., Angrisani, Leopoldo, Series editor, Arteaga, Marco, Series editor, Chakraborty, Samarjit, Series editor, Chen, Jiming, Series editor, Chen, Tan Kay, Series editor, Dillmann, Ruediger, Series editor, Duan, Haibin, Series editor, Ferrari, Gianluigi, Series editor, Ferre, Manuel, Series editor, Hirche, Sandra, Series editor, Jabbari, Faryar, Series editor, Kacprzyk, Janusz, Series editor, Khamis, Alaa, Series editor, Kroeger, Torsten, Series editor, Ming, Tan Cher, Series editor, Minker, Wolfgang, Series editor, Misra, Pradeep, Series editor, Möller, Sebastian, Series editor, Mukhopadhyay, Subhas Chandra, Series editor, Ning, Cun-Zheng, Series editor, Nishida, Toyoaki, Series editor, Panigrahi, Bijaya Ketan, Series editor, Pascucci, Federica, Series editor, Samad, Tariq, Series editor, Seng, Gan Woon, Series editor, Veiga, Germano, Series editor, Wu, Haitao, Series editor, Zhang, Junjie James, Series editor, Konkani, Avinash, editor, Bera, Rabindranath, editor, and Paul, Samrat, editor

Published
2018
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9. Power Electronic Converter Configurations Integration with Hybrid Energy Sources – A Comprehensive Review for State-of the-Art in Research

Author

Ramesh Babu Neelakandan, Sanjeevikumar Padmanaban, Kumar Krishnamurthy, Frede Blaabjerg, and Kettavarampalayam Ramanathan Prabhu

Subjects
grid integration, 020209 energy, solar energy, Energy Engineering and Power Technology, 02 engineering and technology, Automotive engineering, DC coupled system, AC coupled system, wind energy, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, hybrid energy system, power electronics converter, Wind power, biomass, integumentary system, business.industry, Mechanical Engineering, Geothermal energy, 020208 electrical & electronic engineering, Fossil fuel, Solar energy, tidal energy, Renewable energy, Power (physics), geothermal energy, Environmental science, power conversion stages, State (computer science), business, Tidal power, wave energy
Abstract

The electricity demand is increasing day by day. On the other side, fossil fuels are depleting at a higher rate. The abundantly available renewable energy sources like solar, wind, and fuel cells are becoming popular sources of energy. But due to the intermittent availability of these renewable energy sources, two or more energy sources are integrated together. Power electronic converters are used for integrating different energy sources. Various power electronic converter (PEC) topologies have been proposed and analyzed in detail to control maximum power point, voltage, frequency, and harmonic distortions. Each of these configurations will differ in its topology and operating principle. The objective of this paper is to present a comprehensive review of various aspects of PEC configurations available for integration of renewable energy sources by systematization into three groups (AC shunt coupled, DC shunt coupled, and hybrid coupled systems). Emphasis is also given to coordination power control, maximum power point, and grid integration challenges related to the hybrid energy system. Furthermore, a general, system modeling of solar, wind, and grid integration is presented here to give an overall picture of a hybrid renewable energy system.

Published
2019

10. Preface

Author

Indragandhi, V., Raja Singh, R., Ramasamy, Sudha, and Ramanathan, Prabhu K.

Subjects
Manufacturing, Surface and Joining Technology, Bearbetnings-, yt- och fogningsteknik
Abstract

We would like to present, with great pleasure that the aim of the 2nd Virtual Conference on Advances in Electric Drives, Process Control and Automation (VCADPCA2020) is a platform for researchers, academicians as well as professionals from all over the world to present, discuss and promote advances in knowledge, research and practice in the field of Electric Drives, Process Control and Automation. VCADPCA2020 is offering a fantastic opportunity to attend a global scientific forum from the convenience of your desktop. No travelling, no hotel expenses, no time away from the office. The conference runs fully online, from paper submission, including reviewing, conference discussion and post conference processing. All papers will be referred to double tier approval process, single-blind peer-review and regular check. The online conference is a smart and affordable manner of presenting research results. Three leading universities VIT, India, Aalborg University Fibigerstræde, Denmark and University West, Sweden are organized this conference successfully on 9th June 2020. Keynote sessions are presented virtually from National and International experts in cutting edge technologies. The selected papers are presented by the authors virtually in the emerging fields like smart grid, power electronics, renewable energy, industrial automation, control and robotics. The panel members evaluated the research ideas and recommended for paper publications in IOP conference proceedings. List of Editorial Board members are available in this pdf.

Published
2020

12. A New feedback gain matrix based LQR PI Controller for Integrator time delay process

Author

K, Harshavardhana Reddy and RAMANATHAN, Prabhu

Subjects
LQR, Skew symmetric matrix, IPTD process, Control Matrix, PI Controller, Riccati equation, Fen, Science
Abstract

Inthis paper, a Linear Quadratic Regulator (LQR) based PI controller is proposedfor the integrator plus time delay process (IPTD). In LQR PI controller designprocess the selection of weight matrices ‘Q’ plays a key role in order tominimize settling time, peak overshoot and Integral Errors. So, In order toimprove the system performance, a new feedback gain matrix is proposed for theoptimal selection of weight matrices in the controller design. First,the LQR PI controller is designed for Firstorder time delay process (FOPDT) and thengrabbed the formulas for IPTD process by assuming the state variable as zero.The simulation results are presented to validate the proposed method by usingdifferent IPTD process. The proposed controller is also experimentallyvalidated on a temperature control process.

Published
2017

16. A Simplified and Portable Capacitance Sensor to Measure Moisture Content of Paddy.

Author

NATHK, Divya and RAMANATHAN, Prabhu

Subjects
*SOIL moisture, *PADDY fields, *TEMPERATURE measurements, *HUMIDITY, *CAPACITORS
Abstract

The moisture content in agricultural products will affect the quality. Fungi development happens if the moisture content is not optimum. This paper presents a non - destructive, simple, fast and low cost interface circuit to measure the moisture content of paddy grains heated in different temperature. The arrangement used is a high precision impedance converter. Ceramic capacitors of different values were used to check the measuring circuit. Using this circuit, moisture content of representative standard samples was measured and dielectric constant was calculated. The paper discusses the principle, technique, methodology and experimental set up used and the results obtained. [ABSTRACT FROM AUTHOR]

Published
2018

24. Study and Comparison of Fuzzy Logic and PI Controller Based on Pressure Control System.

Author

Ramanathan, Prabhu, Arjun, A., Mampilly, Kochuthomman J., Marimuthu, R., and Ramasamy, Sudha

Subjects
FUZZY logic, REAL-time control, ELECTRONIC controllers, TIME delay systems, HIGH voltages, LOW voltage systems
Abstract

This project discusses the implementation of pressure control on a real time process using fuzzy logic controller. This project aims to develop a control strategy using a fuzzy based controller as an alternative to the existing PI controller in NI LabVIEW. It consists of controlling a certain process in a much simpler and easy manner by taking the control action. This involves designing and tuning of the membership functions and input/output rules. [ABSTRACT FROM AUTHOR]

Published
2012

25. Low Value Capacitance Measurements for Capacitive Sensors: A Review

Author

Ramanathan, Prabhu, Ramasamy, Sudha, Jain, Prateek, Nagrecha, Hardik, Paul, Saurav, Arulmozhivarman Pachiyappan, and Tatavarti, Rao

Subjects
Doubles differential principle, RC phase delay and oscillator, lcsh:Technology (General), Capacitance measurement, Capacitive sensors, lcsh:T1-995
Abstract

The novel results in the field of measurements of very small capacitance changes are presented. The operating principles like double differential principle, RC phase delay, charging and discharging, oscillator, capacitance to phase angle conversion used for measuring very small capacitance changes are discussed. The basic and most important parameters of measurements are dealt with measurement range, sensitivity, percentage error and applications where it can be used. The aim is to provide an elaborative summary on various methods and their parameters available for capacitance measurement.

26. Hybrid Adaptive Neuro fuzzy based speed Controller for Brushless DC Motor.

Author

REDDY, K. Harshavardhana, RAMASAMY, Sudha, and RAMANATHAN, Prabhu

Subjects
*BRUSHLESS direct current electric motors, *ELECTRIC controllers, *FUZZY control systems, *ADAPTIVE control systems, *BACK propagation
Abstract

This paper presents a Hybrid Adaptive Neurofuzzy Control technique for speed control of BLDC motor drives. The proposed controller is an integration of adaptive neurofuzzy, fuzzy PID and PD controllers. The objective is to utilize the best attribute of fuzzy PID and PD controllers, which exhibits a better response than the neurofuzzy controllers. The error back propagation learning algorithm (EBPA) is used to train the data to minimize learning error. To validate the performance of proposed controller, simulations are done in MATLAB and comparison is made with PI, PD and fuzzy PID controllers. In addition, the performance of proposed controller is benchmarked with other controllers reported in the literature. The results of the proposed controller are promising in terms of quick settling time, zero peak overshoot and zero steady state error. [ABSTRACT FROM AUTHOR]

Published
2017

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