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.
出处
《高压电器》
CAS
CSCD
北大核心
2015年第7期87-91,共5页
High Voltage Apparatus
关键词
并网逆变器
重复控制
PI控制
动态响应
稳态误差
grid-connecting converter
repetitive control
PI control
dynamic response
steady-state error
