Modeling and simulation of variable speed wind generator system using boost converter of permanent magnet synchronous generator

This paper proposes the variable-speed wind generator system using the boost converter. The proposed system has three speed control modes for the wind velocity. The control mode of low wind velocity regulates the armature current of the generator with the boost converter to control the windmill speed. The control mode of middle wind velocity regulates the DC link voltage with vector controlled inverter to control the windmill speed. The control mode of high wind velocity regulates the pitch angle of the wind turbine with the pitch angle control system to control the windmill speed. The hybrid of three speed control scheme extends the variable-speed range. The proposed system simplifies the maintenance, improves the reliability, and reduces the cost in compare with variable-speed wind generation system using PWM converter.