有源电力滤波器的鲁棒重复电流控制策略研究

针对传统的电流环PI控制存在稳态误差和相角偏移等问题,提出了一种有源电力滤波器的鲁棒重复电流控制策略,详细分析了鲁棒重复控制策略的具体实现方法。仿真和试验结果表明,该控制策略在实现有源电力滤波器输出补偿电流准确跟踪指令电流的同时,提高了有源电力滤波器的抗干扰性能,显著改善了有源电力滤波器的动静态性能。

Research of robust repetitive current control strategy of active power filter

In view of problems of steady-state error and phase offset of traditional current loop PI control of active power filter,a robust repetitive current control strategy of active power filter was proposed,and concrete implementation method of robust repetitive control strategy was analyzed in details.The simulation and experimental results verify that the control strategy can achieve tracking of output compensation current with instruction current and improve anti-interference performance at the same time,which improves dynamic and static performance of active power filter significantly.