无源注入支路对混合型有源电力滤波器的影响分析

由于受电力电子开关器件制造水平的限制,有源电力滤波器通常应用在低压配电场合。如果采用基于无源注入支路的混合型有源电力滤波器就可以应用在中高压系统,能够解决中高压系统电流谐波的治理问题。论文针对混合型有源电力滤波器的电路拓扑,介绍了无源注入支路的基本工作原理,重点阐述了如何选择注入支路的调谐频率。无源注入支路调谐频率会影...

Analysis on Impact of Passive Injection Circuit on Hybrid Active Power Filter

As a result of the power electronic devices manufacture level limited, the active power filter can be usually used in the low-voltage system. However, because the hybrid active power filter has injection circuit, it may be possible that the hybrid active power filter can work in the middle and high-voltage system, the problem has been solved that in the middle and high-voltage system the current harmonics is eliminated difficultly. In view of the topology of the hybrid active power filter with injection circuit, analysis its principle in detail, as well as choice the desirable resonance frequency. The resonance frequency is able to affect injection ability of other frequency harmonics, meanwhile in the fundamental frequency situation the entire passive filter circuit take on capacitance characteristic, reactive power can be compensated also. Finally, based on the Matlab-Simulink, simulations results have verified the effectiveness of the proposed topology.