| 引用本文: | 刘顺炮,郑建勇,查申森,梅军,吴恒荣,陈军.基于新型混合式断路器的IGBT缓冲电路研究[J].电力自动化设备,2006,(3):31-34 |
| .Research on IGBT snubber based on hybrid circuit breaker[J].Electric Power Automation Equipment,2006,(3):31-34 |
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| 摘要: |
| 分析了新型混合式断路器的IGBT开关特性,在总结3种传统IGBT缓冲电路的基础上,提出一种优化的适合于新型混合式断路器的IGBT缓冲电路。该电路能在不降低吸收过电压效果的基础上,改变充、放电回路的电容,使放电时间跟随电容改变而改变,满足具体主电路对IGBT导通时间变化的要求和满足不同IGBT开关频率的要求。通过仿真和理论分析证明了该优化缓冲电路的有效性和适用性。 |
| 关键词: 缓冲电路,IGBT,混合式断路器 |
| DOI： |
| 分类号:TM561 |
| 基金项目:江苏省科技厅推广项目;江苏省高技术研究发展计划项目 |
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| Research on IGBT snubber based on hybrid circuit breaker |
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LIU Shun-pao ZHENG Jian-yong ZHA Shen-sen MEI Jun WU Heng-rong CHEN Jun
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| Abstract: |
| The characteristic of IGBT used for novel hybrid circuit breaker is analyzed. Three kinds of traditional IGBT snubber are summarized,based on which an optimized snubber is designed for novel hybrid circuit breaker. With the effect on absorbing over-voltage,its discharge time changes with the changeable capacitor of discharge circuit to meet the requirements of variable conduction time of IGBT by main circuit and variable switching frequency by different IGBTs. Its effectiveness and applicability are proved by simulation and theoretical analysis. |
| Key words: snubber circuit,IGBT,hybrid circuit breaker |
