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有源电力滤波器(Active Power Filter,APF)的控制核心主要包括补偿电流控制和直流侧电容电压控制两个部分,在对空间电压矢量脉宽调制(SVPWM)控制方法和直流侧电压控制的基本原理分析的基础上进行仿真,仿真结果表明基于SVPWM电流控制和基于传统PI调节的APF补偿效果较理想,为进一步稳定直流侧电压,提高补偿效果,在电压闭环控制的基础上,引入模糊自适应比例积分(PI)调节器,明显减小了直流侧电压的波动,超调量和静差有了很大的改善,具有良好的控制效果。实验结果也验证了该设计方法的可行性。
Active Power Filter (APF) control core mainly includes compensation current control and DC capacitor voltage control in two parts. In the control of space voltage vector pulse width modulation (SVPWM) and DC voltage control basic The simulation results show that the APF compensation based on SVPWM current control and traditional PI regulation is more satisfactory. In order to further stabilize the DC voltage and improve the compensation effect, the fuzzy adaptive control is introduced based on the closed-loop voltage control Proportional integral (PI) regulator, significantly reducing the DC voltage fluctuations, overshoot and static error has been greatly improved, with good control. The experimental results also verify the feasibility of the design method.