基于IGCT的大功率变流器的研制  

Design of IGCT-based High-power Converter

作　　者：王武华 周党生 谢磊 WANG Wu-hua;ZHOU Dang-sheng;XIE Lei(Shenzhen Hopewind Electric Co.,Ltd.,Shenzhen 518055,China)

机构地区：[1]深圳市禾望电气股份有限公司,广东深圳518055

出　　处：《电力电子技术》2022年第1期13-16,共4页Power Electronics

基　　金：国家重点研发计划(2017Y FB0903700)。

摘　　要：鉴于传统大功率变流器在提高输出电压等级时的可靠性问题,研究一种采用中性点箝位(NPC)的拓扑结构,基于集成门极换流晶闸管(IGCT)器件的提高整机输出电压等级的方法。通过仿真分析了不同杂散参数对IGCT开关特性的影响,设计具有独立式缓冲电路的功率单元,采用空间矢量脉宽调制(SVPWM)方法,研制出IGCT三电平变流器,并通过实验验证了其工作可靠性及调制算法的可行性。To solve the reliability issue of traditional high-power converter when improving output voltage level,a method of improving output voltage level for converter based on integrated gate commutated thyristor(IGCT)using the neutral point clamped(NPC)topology is studied.The influence of different stray parameters on IGCT switching charac-teristics is analyzed by simulation.An IGCT three-level converter prototype is developed based on power unitswith ind-ependent buffer circuits and space vector pulse width modulation(SVPWM),the IGCT three-level converter is devel-oped and its reliability and modulation algorithm are verified by experiments.

关 键 词：变流器 杂散参数 空间矢量脉宽调制 中性点箝位 

分 类 号：TM46[电气工程—电器]