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为了提高矿用有源电力滤波器的补偿能力,提出了一种基于滑模谐振控制器的有源电力滤波器控制策略。根据d-q坐标系的电流方程采用滑模控制理论设计了电流环滑模控制器,同时针对三相不控整流电路产生的含量较高的正序7次谐波分量及负序5次谐波分量,利用改进谐振控制可实现正弦波信号的零稳态误差跟踪,并在滑模控制的基础上并联谐振控制,从而提出一种滑模谐振控制算法。与传统PI控制相比较,仿真结果验证了所提方法的有效性和优越性。
In order to improve the compensation ability of active power filter, a control strategy of active power filter based on sliding mode resonance controller is proposed. According to the current equation of dq coordinate system, the current loop sliding mode controller is designed by using the sliding mode control theory. In the meantime, the positive seventh order harmonic component and the negative fifth order harmonic component , The zero-steady-state error tracking of the sine wave signal can be realized by using the improved resonance control, and the parallel resonance control based on the sliding mode control is proposed, so that a sliding mode resonance control algorithm is proposed. Compared with the traditional PI control, the simulation results verify the effectiveness and superiority of the proposed method.