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针对电力有源滤波器的应用越来越广泛,成本要求越来越高,并且容错需求也逐渐显现的情况,提出基于PI神经元网络控制器的低成本三相四开关电力有源滤波器。对PI神经元网络控制机理进行分析,设计其在三相四开关APF中的应用模型。参考经典电压空间矢量算法,对三相四开关APF电压空间矢量进行数学推算,对三相四开关APF电压空间矢量调制算法进行计算,提出确定矢量空间区间的“旋转坐标法”。最后进行仿真和实验,结果验证了所提理论的正确性。
Aiming at the situation that electric active filter is more and more widely used, the cost requirements are getting higher and higher, and the requirements for fault tolerance appear gradually, a low cost three-phase four-switch active power filter based on PI neural network controller is proposed. The control mechanism of PI neural network is analyzed, and its application model in three-phase four-switch APF is designed. With reference to classical voltage space vector algorithm, the APF voltage space vector of three-phase four-switch is mathematically calculated and the APF voltage space vector modulation algorithm of three-phase four-switch is calculated. The “rotation coordinate method” for determining the vector space is proposed. Finally, the simulation and experiment are carried out, the results verify the correctness of the proposed theory.