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Your search keyword '"Saleh, S. A."' showing total 73 results
Start Over Author "Saleh, S. A." Publisher institute of electrical and electronics engineers (ieee)
73 results on '"Saleh, S. A."'

21. Performance Testing of an Active Multiport DC Link for Grid-Connected PMG-Based WECSs

Author

Saleh S. A. Saleh, K. McDonald, Christian Richard, and Xavier Francis St-Onge

Subjects
Total harmonic distortion, Flyback converter, business.industry, Computer science, 020208 electrical & electronic engineering, Electrical engineering, Topology (electrical circuits), 02 engineering and technology, Permanent magnet synchronous generator, Converters, Industrial and Manufacturing Engineering, Power (physics), Control and Systems Engineering, Power electronics, Boost converter, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, business
Abstract

This paper presents the development, implementation, and performance evaluation of a new active dc link for permanent magnet generator (PMG)-based wind energy conversion systems (WECSs). The proposed dc link is developed based on the multiport converter (MPC) topology with two dc–dc power electronic converters (PECs) that have separate inputs and parallel-connected outputs. The first dc–dc PEC is designed as a boost converter, while the second dc–dc PEC is designed as a flyback converter. Each dc–dc PEC is operated and controlled independently to facilitate processing continuous and/or discontinuous input dc voltages. The performance of the MPC active dc-link is experimentally evaluated using a grid-connected 7.5-kW PMG-based WECS, when operated under different wind speeds and/or levels of power delivery to the host grid. Test results show that the proposed dc link can produce a high-quality-regulated dc output voltage over a wide range of wind speeds and levels of power delivery to the host grid. Performance results also demonstrate that the operation of the MPC active dc link has minor impacts on the operation and control of the generator-side and grid-side PECs.

Published
2018

36. Self-Controlled Hyperthermia Characteristics of ZnGdFe Nanoparticles

Author

Yousef Haik, Saleh S. Hayek, Hassan A. N. Hejase, and Shahnaz Qadri

Subjects
Hysteresis, Magnetic hyperthermia, Materials science, Chemical engineering, Condensed matter physics, Remanence, Nanoparticle, Curie temperature, Magnetic nanoparticles, Electrical and Electronic Engineering, Coercivity, Magnetic hysteresis, Electronic, Optical and Magnetic Materials
Abstract

We report self-controlled heating temperature rising characteristics of gadolinium-substituted zinc iron ferrite magnetic nanoparticles. ZnGdFe2O 3 nanoparticles were synthesized chemically by a co-precipitation process for application as hyperthermia inducing agents. The structure, morphology and magnetic properties of the nanoparticles were characterized using scanning electron microscope, X-ray diffractometer, and superconducting quantum interference device. The magnetic properties investigated included Curie temperature Tc, saturation magnetization Ms, remanent magnetization Mr, coercive field Hc, and hysteresis. It was observed from the study of the synthesized ZnGd ferrite nanoparticles that addition of Gd resulted in an increase in nanoparticles system's overall Curie temperature as well as its pyromagnetic coefficient.

Published
2012

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