摘要
分析了三相PWM整流器的工作原理,介绍了基于定频电压空间矢量调制的直接功率控制方法,建立Matlab/Simulink环境下的仿真模型,对系统进行了仿真分析。仿真结果表明该方法实现了输入电流正弦化,单位功率因数整流,具有良好的动态和稳态性能。
This paper introduces the working principle of the three-phase PWM rectifier. A direct power control strategy with constant switching frequency is proposed, and Space Vector Modulation (SVM) is applied to the scheme. Then the simulation model is established for analysis by Matlab/Sim- ulink. The results show that input sin current and unity power factor are achieved and the proposed method has excellent dynamic and steady state performance
出处
《实验室科学》
2011年第4期101-103,106,共4页
Laboratory Science
基金
郑州航空工业管理学院青年科研基金(项目编号:2010163001)
关键词
瞬时功率
直接功率控制
空间矢量调制
instantaneous power
direct power control
space vector modulation