摘要
逆变系统中,PI控制对低次谐波的抑制能力不够,而重复控制的时延环节注定了第一个周期无输出,影响系统的快速响应性。文中尝试在逆变器控制中融合PI的动态响应性能和重复控制对周期性扰动信号的抑制能力,提出了一种将PI和重复控制并联的控制方案,然后分析被控对象特性,依次设计PI控制器和重复控制器参数,最后通过仿真和实验验证了该方案的可行性。
In the inverter system,the PI control is not enough to restrain the low harmonics,and the time delay of repetitive control is doomed to be the first period without output,which affects the fast response of the system.In this paper,the dynamic response performance of the fusion PI and the suppression ability of the repetitive control to the periodic disturbance signal are tried in the inverter control,a control scheme is proposed to control the parallel connection of PI and repetitive control,and then the characteristics of the controlled object are analyzed.In order to design the PI controller and repetitive controller parameters,the feasibility of the proposed scheme is verified by simulation and experiment.
出处
《通信电源技术》
2016年第4期9-11,共3页
Telecom Power Technology
关键词
单相逆变器
重复控制
PI+重复控制
single-phase inverter
repetitive control
PI and repetitive control
