基于空间矢量的有源电力滤波器预测电压控制策略

Voltage Prediction Control Strategy for Active Power Filter Based on Space Vector

从矢量的角度出发,将三相电网电压与电流矢量在旋转坐标系下进行投影变换,实现了谐波与无功电流的同时提取。进一步提出一种具有无差拍控制特性的有源电力滤波器空间矢量控制策略,实现了有源电力滤波器的预测控制和谐波与无功电流的精确补偿。利用MATLAB对所提出的控制策略进行仿真验证,并研制了5 kVA实验样机进行了实验研究。仿真与实验结果验证了此方法的正确性与有效性。

A novel detection method of harmonic and reactive currents was proposed through the shadow of voltage and current vector in synchronous reference flame. In order to realize the exact compensation for harmonic and reactive currents in grid, a dead- beat control strategy for active power filter based on space vector has been proposed. Simulation based on MATLAB and a 5 kVA DSP-base experimental platform were built up. Simulation and experimental confirm the correctness and effectiveness of this control strategy.