【摘 要】
：
电流控制器作为有源电力滤波器的核心部分,直接影响着有源电力滤波器的补偿性能。为了实现电流的快速跟踪,文中将电流跟踪问题转化为变换器的电压控制进行分析,并采用一种简
【机 构】
：
南京航空航天大学自动化学院,南京航空航天大学自动化学院,南京航空航天大学自动化学院,南京航空航天大学自动化学院 江苏省南京市 210016,江苏省南京市 210016,江苏省南京市 210016,江苏
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电流控制器作为有源电力滤波器的核心部分,直接影响着有源电力滤波器的补偿性能。为了实现电流的快速跟踪,文中将电流跟踪问题转化为变换器的电压控制进行分析,并采用一种简单的abc坐标系下的3维空间矢量调制算法,避免了繁琐的坐标变换,减小了计算复杂程度,提高了计算速度。应用一片现场可编程门阵列(FPGA)完成了固定开关频率的电流控制功能设计,并进行了编程仿真。最后给出了三相四线有源滤波器的电流控制波形的实验结果,证明了该电流控制方案的可行性和正确性。
As a core part of the active power filter, the current controller directly affects the compensation performance of the active power filter. In order to realize the fast current tracking, the current tracking problem is transformed into the voltage control of the converter, and a simple 3-D space vector modulation algorithm in abc coordinate system is adopted, which avoids cumbersome coordinate transformation and reduces Computational complexity increases computational speed. A field programmable gate array (FPGA) was used to design the current control function of a fixed switching frequency, and the programming simulation was carried out. Finally, the experimental results of the current control waveforms of the three-phase four-wire active filter are given, and the feasibility and correctness of the current control scheme are proved.
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