Modeling and Analysis of a Novel Mppt for Pmsg Based Stand-Alone Wing Energy Conversion
Abstract
This thesis presents a novel control strategy for the operation of a direct-driven permanent-magnet synchronous generator- based stand-alone variable-speed wind turbine. The battery charger employs a boost converter cascaded with a Greatz bridge that can harvest the maximum power from wind turbine. Also, a buck converter is connected in series with the boost stage to ensure a constant voltage. This system can extract maximum power over the entire wind speed range and the battery charging can be realized through conventional techniques. Simulation results are presented to depict the existence of maximum power points in wind generator.
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