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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。
Focus on the hybrid active power filter optimal installation point problem. A simplified model of distribution network and hybrid active power filter (HAPF) is established. The network objective function of distribution network is defined according to the total distortion of busbar voltage at each node of distribution network. NOF). The voltage and current transfer matrix of distribution network are obtained through the analysis of the admittance matrix of the distribution network node. Based on this, the frequency response characteristics of the distribution network are studied, and the resonant frequency of the passive branch of the hybrid active power filter and The parameter selection provides the design reference. At the same time, the selection method of HAPF optimal installation point is expounded for the purpose of obtaining the optimal objective function, and the influence of the change of grid parameters is emphatically discussed. The proposed method can be widely used in harmonic control and reactive power compensation of various distribution networks. The engineering application results verify the correctness of the theoretical analysis.