摘要
针对在三相电压型PWM整流器交流侧使用变压器降压的一些缺点,提出了在整流器直流环节采用直流双向变换器取代交流侧变压器的新方法,介绍了变换电路和系统电路的拓扑结构和工作原理。该电路特别适合于能量需双向流动的PWM整流和逆变场合。仿真和实验结果证明了该方法简单可行。
Aiming at the demerits of lowering voltage by using transformer on AC side in three phase voltage source PWM rectifier,a new method of DC link in rectifier with bidirectional voltage converter substituting transformer in AC side is presented, topology and operating principle of converting circuit and system circuit are introduced.The circuit is fit for the PWM rectifying and inverting situation at which the power should flow in two direction.The simulation and experimental results prove that the method is simple and feasible.
出处
《电力电子技术》
CSCD
北大核心
2007年第1期29-30,53,共3页
Power Electronics
关键词
整流
逆变
直流变换
rectifying
inverting
direct current converting
