基于SVPWM串联有源电力滤波器控制策略的实现

Implementation of Control Strategy for Series Active Power Filter Based on SVPWM

针对三相电网中谐波的影响,本文介绍了串联有源电力滤波器的结构及其补偿特性。在有源电力滤波器补偿控制方式上,采用空间电压矢量SVPWM的控制技术,克服了传统控制方式动态响应速度慢、开关频率波动大的缺点,使整个补偿系统开关频率恒定,补偿精度高且动态响应快。

In view of harmonics to the three-phase power grid, the article describes the characteristics of compensation and structure of series active power filter. The space voltage vector SVPWM control method is introduced in control of the APF. This method can overcome the traditional control strategy＇s poor performance in dynamic response and the switching frequency fluctuations. With the SVPWM control, the whole system is performance well in dynamic response. What＇s more, the switching frequency is constant.