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研究了一种新型双谐振注入式混合型有源电力滤波器(hybrid active power filter,HAPF),通过添加基波串联谐振支路与有源部分并联以减小它的基波分压,通过添加基波并联谐振支路构成注入通道,增强谐波电流注入能力的同时避免无功过补,并能够通过系统中的无源滤波器组来补偿大容量无功功率。针对某110 kV变电站谐波抑制和无功补偿的工程需求,详细介绍了兼具大容量无功静补能力的双谐振注入式HAPF应用方案的设计、设备参数、装置主要组成部分以及仿真、实验情况等,并给出了装置投运后的预期降损节能效益,仿真和实验结果证明了所提双谐振注入式HAPF方案的可行性和有效性。
A novel dual-resonant hybrid active power filter (HAPF) is studied. By adding a fundamental series resonant branch in parallel with the active part to reduce its fundamental partial pressure, Fundamental wave parallel resonant branches constitute the injection channel, to enhance the ability of harmonic current injection while avoiding reactive over-compensation, and through the system of passive filter bank to compensate for large-capacity reactive power. Aiming at the engineering requirements of harmonic suppression and reactive power compensation in a 110 kV substation, the design, equipment parameters, main components of the dual-resonant HAPF injection system with large capacity of reactive power and static compensation, and the simulation and experiment Etc. The expected energy loss and energy saving benefit after the equipment is put into operation are given. The simulation and experimental results prove the feasibility and effectiveness of the proposed double resonance injection HAPF scheme.