摘要
针对PWM逆变器的重复控制器存在的控制实时性差,动态响应速度慢等问题,分析了一般重复控制器控制的PWM逆变器的谐波和误差,推导了奇次谐波重复控制算法,设计了一种PWM逆变器的奇次谐波重复控制器,在不同负载情况下对控制特性进行了仿真分析。仿真结果表明,奇次谐波重复控制器可以将奇次谐波抑制在0.5%以下,取得了较好的抑制效果。在突加负载情况下,THD达到稳定的时间和内存的占用只需原来的一半。
Repetitive controller of the PWM inverter control real-time performance is poor and slow dynamic response,a general repetitive controller to control the PWM inverter harmonics and the error analysis,derivation of the odd harmonics repetitive control algorithm design of the odd harmonics of a PWM inverter repetitive controller.The simulation analysis of the control characteristics was made under different load conditions.The simulation results show that the odd harmonic repetitive controller can be odd harmonics suppression at 0.5% look good inhibitory effect.In the case of sudden load,THD stable time and memory usage are only half of the original algorithm.
出处
《国外电子测量技术》
2012年第11期26-28,37,共4页
Foreign Electronic Measurement Technology
关键词
逆变器
奇次谐波
重复控制
动态响应
inverter
odd harmonics
repetitive control
dynamic response
