【摘要】 永磁直驱型风力发电机是一种低转速高扭矩的发电机,由于其极对数很多,采用传统的传感器很难实现电角度的精确测量,而且风力机的工作环境很恶劣,传统的传感器很容易出故障。研究了基于锁相环的永磁同步发电机(PMSG)转速和转子位置估算方法,并在无传感器算法的基础上实现了PMSG的矢量控制。通过仿真验证了该矢量控制方法的有效性。在风电实验系统上的实验结果表明,该方法能够实现对PMSG的有效控制。更多还原

【Abstract】 Direct-drive wind generator is a low speed and high torque generator.Due to its high numbers of poles and the poor environment,conventional encoders or resolvers are not available.This paper makes research on the sensorless control of permanent magnet synchronous generator (PMSG) used in the direct-driven wind power system.A sensorless algorithm based on the phase locked loop is researched,and a vector control method based on this sensorless algorithm is proposed. The simulation and experiment verify the effect of the method is testified.更多还原