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有源滤波器能否按其工作原理实现预期的谐波抑制效果,在很大程度上还依赖于电流跟踪控制算法的优劣。该文以一种新型注入式混合有源滤波器为例,结合传统滞环控制算法响应速度快和比例谐振积分控制算法无稳态误差的优点,提出采用复合型控制作为该混合有源滤波器的电流跟踪控制算法。通过相关的仿真、实验结果,从跟踪速度、控制精度、开关谐波含量和开关器件损耗4个方面,将复合型控制算法与传统滞环控制算法及单一的比例谐振积分控制算法进行比较研究。相关分析方法和所得结论可为其他类型的混合有源滤波器的电流跟踪控制算法研究提供借鉴。
Whether the active filter can achieve the expected harmonic suppression effect according to its working principle depends to a great extent on the advantages and disadvantages of the current tracking control algorithm. In this paper, a new type of hybrid active filter is taken as an example. Combining with the advantages of traditional hysteresis control algorithm such as fast response and steady-state error of proportional-integral-control algorithm, composite control is proposed as the hybrid active filter Current tracking control algorithm. Through the related simulation and experimental results, the complex control algorithm is compared with traditional hysteresis control algorithm and single proportional integral control algorithm from four aspects of tracking speed, control precision, switching harmonic content and switching device loss. The related analysis methods and conclusions can provide references for the research of current tracking control algorithms for other types of hybrid active power filters.