论文部分内容阅读
在角型有源滤波器(active power filter,APF)补偿电流参考值提取过程中,对谐波补偿电流提取的动态响应和精度要求高,基频补偿电流需要与网侧线电压正交。针对这2个问题,以无功补偿导纳网络理论为基础,推导角型APF的基频补偿电流参考值与三相负荷电流的变换关系。在此基础之上,提出了补偿电流参考值的计算方法。该方法利用广义瞬时无功理论,并结合滤波器的运用,从三相电流中提取补偿电流参考值。仿真和试验结果验证了所提方法的有效性。
During the extraction of APF compensation current reference, the dynamic response and accuracy of harmonic compensation current extraction are high, and the fundamental frequency compensation current needs to be orthogonal to the line side line voltage. Aiming at these two problems, based on the theory of reactive compensation admittance network, the relationship between the reference value of the fundamental frequency compensation current and the three-phase load current of angular APF is deduced. On this basis, the calculation method of compensation current reference is proposed. The method uses the generalized instantaneous reactive power theory, combined with the application of the filter, to extract the compensation current reference value from the three-phase current. Simulation and experimental results verify the effectiveness of the proposed method.