PWM整流器在高压直流供电系统中的应用研究  

Study of PWM Rectifier for HVDC System

作　　者：李乐[1] 

机构地区：[1]苏州大学,江苏苏州215000

出　　处：《通信电源技术》2014年第5期5-7,共3页Telecom Power Technology

摘　　要：介绍了基于相移变压器的双桥整流器的拓扑结构。运用傅里叶级数推导出一种双波段SHE-PWM的数学模型。并通过运算及实验结果证明了此调制方法对双波段式SHE-PWM的优良性能。此方法能有效消除谐波,减小电网污染,具有较高的实用价值。This paper introduces a topological structure based on a dual-bridge rectifier with a phase shifting transform- er. Deduce the mathematic model of SHE-PWM via its principle analysis by Fourier series. The results of experiment in- vestigation prove that the topology and modulation method takes on an applicable value with little pollution to power grid. This method can effectively eliminate harmonic, reduce the power grid pollution, has high practical value.

关 键 词：谐波消除 相移变压器 PWM整流器 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM461