永磁同步风力发电机复合矢量控制策略研究

A Complex Vector Control Method for Permanent Magnet Synchronous Wind Power Generator

提出一种基于定子电流定向的永磁同步风力发电机复合矢量控制策略。该策略在发电机切入速度与转折速度间采用最大转矩电流比控制方式,以提高系统的发电功率;在转折速度与极限速度间采用最大功率输出的弱磁控制方式,提高系统的稳定性。根据兆瓦级PMSG需采用无速度传感器的技术特点,在模型参考自适应方法基础上,提出一种基于定子电压锁相、定子电流位置定向调节的无速度传感器方法,并将其应用到所提控制策略中。最后通过实验样机验证了该方案的正确性和可行性。

According to the characteristics of permanent magnet synchronous generator（PMSG）,a complex vector control scheme is proposed by using the maximum ratio of torque current control and reducing flux control.Based on mode ref-erence adaptive system（MARS） and phase-locked,a sensorless control method is also proposed by using the dynamics stator current position controller.With the method,the complex vector control rotating cording system is established.Simula-tion results indicate the feasibility of the method.Experiments on a lab prototype platform also validate the correction of the complex vector scheme and the sensorless method.