谐波与无功电流解耦及复合双向补偿的研究

Study on Decoupled and Combined Bi-directional Compensation of Harmonic and Reactive Current

提出了一种谐波与无功电流解耦及复合双向补偿的控制策略,即该控制策略既能单独补偿谐波电流或无功电流,使装置运行在有源电力滤波器(Active Power Filter,简称APF)模式或静止同步补偿器(Static Synchronous Compensator,简称STATCOM)模式,又能同时复合补偿谐波和无功电流,使装置运行在APF和STATCOM复合工作的模式。以实验室的复合电流质量调节装置低压实验样机为平台进行了实验分析,结果证明所提出的控制策略是有效可行的。

This paper proposes a novel control strategy of harmonic and reactive current decoupled and combined bi-directional compensation strategy.The strategy can compensate harmonic or reactive current separately to make device working in the active power filter（APF）or static synchronous compensator（STATCOM）modea,nd compensate harmonic and reactive current comprehensively to make device working in the APF and STATCOM joint mode.The experimental analysis is done by using a low-voltage experimental prototype which is a recombination current quality adjustment device in laboratory.The results verify the control strategy is viable and effective.