基于谐振原理的三电平叠层母排杂散电感测试方法  

Testing Method for Stray Inductance of Laminated Bus-Bar Used in Three-Level Power Converter Based on LC Resonant Principle

作　　者：杨文斌 张鲁华 李卫 

机构地区：[1]上海电气集团股份有限公司 [2]上海电气输配电集团,上海200042

出　　处：《电器与能效管理技术》2015年第12期22-26,31,共6页Electrical & Energy Management Technology

摘　　要：提出了一种基于LC谐振原理的三电平叠层母排杂散电感的测试方法。在测试电路中加入谐振电容,根据换流过程中叠层母排的杂散电感与已知谐振电流产生的谐振频率,精确测量出谐振频率,由已知的谐振电容数值推导出叠层母排的杂散电感。试验表明,该方法对于三电平叠层母排杂散电感的测量精度高,对于中高压三电平电力电子拓扑的过电压保护具有重要的指导意义。This paper proposed a method based on the LC resonant principle for testing stray inductance of the laminated bus-bar used in three-level power converter. The test circuit includes resonant capacitors ,which are used for calculating the stray inductance quantity of the laminated bus-bar according to the resonant frequency. The frequency is read from the current which flows in the laminated bus-bar. The experiments show high precision for testing stray inductance of the three-level power converter＇ s bus-bar, which has significant guidance to the over voltage protection of high-medium voltage three-level power converter.

关 键 词：三电平 叠层母排 杂散电感 测试方法 

分 类 号：TM206[一般工业技术—材料科学与工程]