摘要
对PWM整流器的直接功率控制策略和逆变器变频调速系统进行了研究。以此为基础分析了双PWM变频器的工作原理及运行特性,针对其直流电压易出现波动的缺点,提出了带有功率反馈的一体化直接功率控制策略,以提高系统动态响应速度与抗干扰能力。系统仿真结果表明该方案正确,有效。
The direct power control strategy of PWM rectifier and the variable frequency drive system of the inverter are studied.Then the op- eration principle and the nmning characteristic of dual-PWM converter are analyzed.Because the middle DC segment volts of the inverter is fluc- tuated,the integrated direct power control strategy with power feedback is proposed to improve the dynamic response speed and anti-jamming ability.The simulation result verify the suggested scheme.
出处
《控制工程》
CSCD
2007年第S3期182-184,188,共4页
Control Engineering of China
基金
河南省教育厅基金(2006510005)
