谐振注入式混合型有源滤波器的仿真研究

Simulating Research on Parallel Double Resonance Injected Hybrid APF

提出了一种适用于中高压系统的并联谐振注入式混合型有源滤波器,给出了拓扑结构。对注入支路的参数进行设计和分析;建立并联谐振注入式混合型有源电力滤波器的简化电气模型,提出了两种控制策略,在MATLAB仿真平台上,利用谐波抑制函数分析研究了不同基本控制策略下电网及系统各个参数波动对装置的谐波补偿特性的影响;给出了该结构的无功补偿特性,解决了传统注入式混合有源电力滤波器存在谐波注入能力与无功容易过补互相矛盾的问题。对并联谐振注入式混合型有源电力滤波器作了仿真实验,结果验证了理论分析的正确性,谐波和无功都得到很好的抑制。

A new topology of parallel resonance injected hybrid APF （PRIHAPF） was proposed, which could be adopted in high voltage system. The parameters of PRIHAPF in the injected branch were designed. The corresponding electric models were constructed and two controlling strategies were proposed. The harmonic suppressing function was used to analyze the harmonic suppressing performance of PRIHAPF with the changing parameters based on different controlling strategies in MATLAB. The reactive power compensating performance of the system was also gotten. The conflicting problem between the capability of harmonic injection and the over compensation of reactive power for the traditional injected HAPF was solved. The simulating results prove the validity of PRIHAPF. The reactive power and harmonics are suppressed well.