摘要
在采用相移SPW M 技术,建立大功率电流型并联逆变电源等效电路的基础上,分析了使用耦合电感抑制多台逆变器并联时环流的工作原理;提出了一种简单可行的均流控制方案。系统的负载电流采用带指令前馈的闭环直接控制方案,以保证良好的抗扰性能和跟踪效果。原理样机实验验证了理论分析的正确性以及控制方案的有效性。
On the basis of the equivalent circuit of high-power current-source parallel inverters with phase-shift SPWM technique,the principle for suppressing the circulating current among the parallel inverters by the coupling inductor is analyzed;a simple and feasible current sharing control scheme is proposed.The closed-loop direct control scheme with feedforward for the load-current is used to get better noise immunity and demand signal tracking efficiency.The experiment results confirm the reliability of the analysis and the validity of the control scheme.
出处
《电力电子技术》
CSCD
北大核心
2005年第2期10-12,共3页
Power Electronics
基金
国家九五重点科技攻关项目[(1998)1303]
关键词
逆变电源
相移
模块
inverter power supply
phase-shift
module Foundation Project:Key Project of National Ninth Five Year Research Program of China [(1998)1303]
