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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 4    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 4, April 2011 Edition
Design of Boost Circuit for Wind Generator
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N.Prasanna Raj, M.Mohanraj, Rani Thottungal
wind power generator, rectifier-inverter circuit, pulse width modulation (PWM), interleaved boost converter, soft switching
This paper presents the design and implementation of a power converter for an autonomous wind induction generator (IG) feeding an isolated load through the PWM-based novel soft-switching interleaved boost converter. The output voltage and frequency of the wind IG is inherently variable due to random fluctuation of wind-speed variation. The interleaved boost converter composed of two shunted elementary boost conversion units and an auxiliary inductor. This converter is able to turn on both the active power switches at zero voltage to reduce their switching losses and evidently raise the conversion efficiency. Since the two parallel-operated elementary boost units are identical, operation analysis and design for the converter module becomes quite simple. A three-phase induction machine model and a three-phase rectifier-inverter model based on a-b-c reference frame are used to simulate the performance of the generation system. It can be concluded from the simulated results that the designed power converters with adequate control scheme can effectively improve the performance of output voltage and frequency of the IG feeding an isolated load.
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