| 引用本文: | 查申森,郑建勇,苏麟,吴恒荣,陈军.基于IGBT串联运行的动态均压研究[J].电力自动化设备,2005,(5):20-23 |
| .Research on dynamic voltage balancing of serial IGBTs[J].Electric Power Automation Equipment,2005,(5):20-23 |
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| 摘要: |
| 绝缘栅双极晶体管IGBT(Insulated Gate Bipolar Transistor)串联运行易于实现IGBT的扩容，但同时也带来了不均压的问题。设计了以L，R为感性负载的实验电路，采用仿真软件PSpiee仿真分析出IGBT串联运行时动态不均压原因是吸收电路参数不一致、门极驱动信号延时不同、门极驱动电路参数不一致引起的。并提出了IGBT串联运行动态均压措施(选同型号IGBT、吸收电路参数与结构一致、门极驱动信号同步、门极电路参数一致)。 |
| 关键词: 绝缘栅双极晶体管 串联 动态均压 吸收电路 |
| DOI： |
| 分类号:TN344 |
| 基金项目:江苏省科技攻关项目;江苏省高技术研究发展计划项目 |
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| Research on dynamic voltage balancing of serial IGBTs |
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ZHA Shen-sen ZHENG Jian-yong SU Lin WU Heng-rong CHEN Jun
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| Abstract: |
| IGBTs( Insulated Gate Bipolar Transistors) operating in serial, which expand voltage capacity, brings the problem of voltage unbalancing. An experimental circuit with L and R as inductive loads is designed and simulated with PSpice. The reasons of dynamic voltage unbalancing of serial IGBTs are concluded : the differences in the absorption circuit parameters, the time-delays of gate driving signal and the gate driving circuit parameters. Some countermeasures are put forward: select the same type of IGBT, construct the absorption circuit with same structure and parameters, synchronize the gate driving signals, construct the gate circuit with same parameters, and so on. |
| Key words: IGBT,serial,dynamic voltage balancing,absorption circuit |
