一种新型40kW软开关三相脉宽调制整流器  

A Novel 40?kW Soft Switching Three-phase Pulse Width Modulation Rectifier

作　　者：李睿[1] 马智远[2] 徐德鸿[2] 

机构地区：[1]电力传输与功率变换控制教育部重点实验室(上海交通大学),上海市闵行区200240 [2]浙江大学电气工程学院,浙江省杭州市310027

出　　处：《中国电机工程学报》2011年第33期93-100,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(50877072);国家863高技术基金项目(2007AA05Z243);高等学校博士学科点专项科研基金资助项目(J20070715)~~

摘　　要：针对三相脉宽调制整流器开关损耗问题,研究了一种软开关三相整流器,可以只采用1个辅助开关,实现所有开关的零电压开通,并抑制二极管反向恢复。分析了软开关三相脉宽调制整流器的软开关过程,给出了谐振参数设计步骤,量化了主开关和辅助开关的通态损耗和开关损耗,设计了三相软开关整流器在电网电压不平衡条件下的控制策略,研制了40 kW实验样机并完成了实验验证。In three-phase power factor correction converter, there exists severe switching loss. A zero voltage switching three-phase boost rectifier was researched. It used only one auxiliary switch and could realize zero voltage switching for all the switches and suppressed the diode reverse recovery current. The soft switching condition was analyzed and the design guide was proposed. The conduction loss and switching loss of the rectifier was calculated and the control strategy of the rectifier under unbalanced grid voltage condition was designed. A DSP controlled 40kW prototype was built to verify the theory.

关 键 词：三相脉宽调制整流器 零电压开关 软开关 

分 类 号：TM46[电气工程—电器]