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本文提出了一种基于矢量原理的有源滤波器的滞环电流控制新方法。该方法以复平面为实施控制的矢量空间,根据电流误差矢量和参考电压矢量的空间分布对电压矢量进行最优化切换,使得电流误差控制在设定的滞环范围以内,改善滤波器性能。而且由于电压空间矢量的引入,使得其实现简单,能有效降低开关频率,改善电流跟踪性能。试验结果证明该方法的可行性。
In this paper, a new method of hysteresis current control based on vector theory is proposed. The method takes the complex plane as a vector space for control and optimizes the voltage vectors according to the spatial distribution of the current error vector and the reference voltage vector so that the current error is controlled within the set hysteresis band to improve the filter performance. And due to the introduction of voltage space vector, making it easy to achieve, can effectively reduce the switching frequency, improve the current tracking performance. The test results prove the feasibility of the method.