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为降低滤波系统和电网的参数变化对单独注入式有源电力滤波器(hybrid active power filter with single injection branch,SIBAPF)滤波性能的影响,提出了SIBAPF的模型参考自适应控制策略。建立了SIBAPF数学模型,并根据该模型建立了滤波系统参数自适应律。仿真结果表明,模型参考自适应控制方法较非线性PI控制方法滤波控制效果更好。基于该方法研制了SIBAPF试验样机,该样机投运后滤波效果良好,满足系统运行要求。
In order to reduce the influence of filter system and grid parameters on SIBAPF filter performance, a SIBAPF model reference adaptive control strategy is proposed. The mathematical model of SIBAPF is established and an adaptive law of filtering system parameters is established according to the model. Simulation results show that the model reference adaptive control method is better than the nonlinear PI control method filter control. Based on this method, a SIBAPF prototype was developed. After the prototype was put into operation, the filtering effect was good and the system operation requirement was met.