摘要
基于传统重复控制理论,提出一种适用于三相电源系统的改进型重复控制方法。该方法在正向和反向同步旋转坐标系下采用了1/6周期时间作为延时时间,实现了输出的快速瞬态响应及6n±1次的谐波补偿,并且结合比例积分(PI)控制,改善了在不平衡电源系统下偶次谐波的抑制效果。分析了改进型重复控制方法的原理等,仿真及实验结果验证了该控制方法的有效性。
Based on the traditional repetitive control technique,this paper proposes an improved repetitive control scheme for three-phase systems.The proposed scheme adopts one-sixth of the fundamental period as the delay time in the positive and negative synchronous rotating frames, and can achieve fast transient response and 6n±1 harmonics compensation,and then the proportional-integral（PI） regulator and the repetitive control are combined in the control loop,to improve the even harmonics compensation under the unbalanced systems.The principle of the improved repetitive control is analyzed, the simulation and experimental results are presented to verify the effectiveness of the proposed scheme.
出处
《电力电子技术》
CSCD
北大核心
2013年第8期83-85,共3页
Power Electronics
关键词
重复控制
同步旋转坐标系
快速瞬态响应
谐波补偿
repetitive control
synchronous rotating frames
fast transient response
harmonics compensation
