并联有源电力滤波器的启动建压与稳压控制

Voltage-Buildup & Regulated Control of Shunt Active Power Filter

对直流侧电压控制模型,在基于电流正交分解的基础上进行了简化修正,同时考虑检测延迟环节的影响,基于此模型设计了直流侧电压环的PI调节器。文中还设计了一种限流电阻加在线改变电压放大倍数K值的直流侧启动充电方法。最后,采用基于空间电压矢量电流跟踪法的并联型有源滤波器(SAPF)模型进行上述分析的仿真,仿真结果证明该方法可行。

A DC side voltage control model for Shunt Active Power Filter（SAPF） is revised which applying current orthogonal decomposition, and consider the impact of voltage-detect delay. Then, a PI controller of DC voltage control loop is designed based on the model. This paper also designes a voltage-buildup method which contains current limiting resistor and changing K online. In the end, simulate in a SAPF adopting space voltage vector following method, and simulative results confirmed the feasibility of the proposed approach.