摘要
以一类NPC型三电平逆变器为例,通过功率单元开关状态变化分析得到IGBT复合母排的4种换流回路路径;在Ansoft Q3D仿真软件中建立了换流回路1:1模型,计算了典型频率下的回路电感参数;利用谐振阻抗分析法实测了该类复合母排的换流回路电感,结果验证了仿真计算的可靠性和有效性。该分析和仿真计算方法可用于指导大容量电力电子变流设备复合母排的参数计算与优化设计。
The structure and parameters of IGBT bus-bar have significant impact on the equipment cabinet design of high power rectifier/inverter and its integrated performance, especially the inductance characteristics may influence the power loss and security of the whole system.Taking a three-level NPC inverter as an example,four kinds of IGBT bus-bar current transition loops are proposed through the analysis on the switch state of each unit.Then, the simulation model is built in Ansoft Q3D according to the size of the bus-bar and the loop inductance parameters are calculated. Experiments are conducted to measure the loop impedance with an impedance analyzer.The results of the experiments demonstrate the reliability and validity of the simulation, which means this method can be used in parameter calculation and optimal design of bus-bar in high power converters.
出处
《电力电子技术》
CSCD
北大核心
2013年第2期36-37,40,共3页
Power Electronics
基金
国家自然科学基金(51177172
51077129)~~
关键词
绝缘栅双极型晶体管
复合母排
换流回路
电感
insulated gated bi-directional transistor
bus-bar
current transition loop
inductance
