New Repetitive Current Controller for PWM Rectifier

This paper analyzed and designed a new Repetitive Current Controller (New RCC), performing a comparison with a traditional RCC. Based on the tracking performance by the original PI controller, the New RCC uses another PI controller to replace the compensator to achieve better control performance. That is the novel approach of the proposed method. And it has been proved in this paper that the controller is not sensitive to the controlled object, therefore it is suitable for use in complex object model scenarios. Simulations and experimental results demonstrate that the new RCC is effective in improving the AC current quality of the three-phase PWM rectifier, which is the right method of control, with high practical application value.