基于电压空间矢量的有源滤波器无差拍电流控制方法

A New Dead-beat Current Control Method for Active Power Filter Based on Voltage Space Vector

零阶保持器和计算时间产生的控制延时,影响有源电力滤波器的动态性能.为提高有源电力滤波器的电流跟踪动态性能,提出了一种基于电压空间矢量的无差拍电流控制方法.该方法利用无差拍电流控制算法确定参考电压矢量,结合电压空间矢量控制方法,可以快速和准确地跟踪参考电流,并可有效抑制系统电压对有源电力滤波器输出性能的影响.仿真和实验证明了该电流控制方法的有效性和可行性.

The delay induced by zero-order-hold and computational time affects the dynamic performance of active power filter. In order to improve the dynamic performance of current tracking, a new dead-beat current control method based on voltage space vector for active power filter was proposed. This method determines the reference voltage space vector by using dead-beat current control algorithm. And together with voltage space vec- tor control method, the reference current can be tracked quickly and accurately, and this method is effective in restraining the effect of system voltage wave on compensating performance. The validity and feasibility of this current control method has been testified with simulations and experiments.