并联混合型有源电力滤波器的最优安装点

Optimal Placement of Hybrid Active Power Filter

着重探讨混合型有源电力滤波器最优安装点的问题。建立配电网及混合型滤波器(hybrid active power filter,HAPF)的简化模型,定义以配电网各节点母线电压总畸变量为参考量的配电网谐波治理目标函数(network objective function,NOF)。通过对配电网节点导纳矩阵的分析得到配电网的电压及电流转移矩阵,并以此研究配电网的频率响应特性,为混合型有源电力滤波器无源支路的谐振频率及参数选择提供设计参考;同时以获得最优目标函数为目的阐述HAPF最优安装点的选择方法,并着重探讨电网参数变化的影响。所述方法可推广应用于各种配电网的谐波治理与无功补偿当中,工程应用结果验证了该文理论分析的正确性。

Selecting the optimal placement of hybrid active power filter in power distribution system was discussed. The simplified models of power distribution system and hybrid active power filter were built up, and then the network objective function （NOF） of harmonic elimination was defined. A numerical analysis based on analytical formulation that used the power distribution system voltage and current transfer matrices was derived providing a user a friendly and general tool to determine the most adequate point of system connection of hybrid active power filter, for improving the compensation effectiveness. The influence of variety of the grid parameters was discussed. Moreover, the proposed method allows the technical evaluation of the harmonic elimination and reactive power compensation in a power distribution system, and the validity of the developed method is verified by the experimental results.