探讨了微电网中有源电力滤波器(APF)接入位置与容量的优化配置问题。在建立微电网离散解析模型和连续解析模型的基础上,推导出APF的最优安装位置为线路总谐波网损和电压畸变率最小的节点,其最优容量等于总谐波网损。算例分析表明,采用所提方案可有效改善谐波电压,降低电压畸变率。
The optimal configuration of APF(Active Power Filter) in microgrid is discussed.Both the discrete and continuous analytical models of microgrid are established and the optimal installation location and capacity of APF are derived,i.e.to install the APF with the capacity equal to the total harmonic loss at the bus with minimal line total harmonic network loss and total voltage distortion rate.Example analysis shows that,the proposed scheme reduces harmonic voltage and voltage distortion rate effectively.