基于PI和重复控制的并网逆变器复合控制方案研究  

Composite Control Scheme of Grid-connecting Converter Based on PI and Repetitive Controllers

作　　者：王弋飞[1] 朱静[1] 李侠[1] 魏泉[1] 

机构地区：[1]西安高压电器研究院有限责任公司,西安710075

出　　处：《高压电器》2015年第7期87-91,共5页High Voltage Apparatus

摘　　要：针对单相并网逆变器系统,给出了一种重复控制器的补偿器简化设计方案。重复控制虽能够保证系统稳态时的输出精度,但是其系统调节的实时性差。为了克服重复控制器动态响应差的缺点,采用了一种基于PI控制和重复控制的复合式控制方法,既保证系统的稳态输出特性,又提高了系统的动态性能。仿真结果验证了复合式控制方法的正确性。A simplified design of taking a PI controller as the compensator of a repetitive controller is proposed for single-phase grid-connecting converter system. The repetitive controller can ensure the output accuracy when system is in steady state, but its dynamic response is not fast enough. To overcome this weakness, a composite control scheme based on PI and repetitive controllers is presented, which can ensure the steady-state output characteristics of the system, and improve its dynamic properties. Simulation verifies the correctness of the composite control scheme.

关 键 词：并网逆变器 重复控制 PI控制 动态响应 稳态误差 

分 类 号：TM464[电气工程—电器]