| 引用本文: | 张明锐,金 鑫,刘金辉.一种抑制固态断路器过电压的新方法[J].电力自动化设备,2012,32(3): |
| ZHANG Mingrui,JIN Xin,LIU Jinhui.Over-voltage suppression of solid-state circuit breaker[J].Electric Power Automation Equipment,2012,32(3): |
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| 摘要: |
| 在分析短路电流开断过程中过电压产生机理和决定因素的基础上，提出一种新型的固态断路器拓扑结构，通过容性续流支路释放故障回路中的电磁能量，从而降低过电压幅值。对续流支路抑制过电压的工作过程和机理进行了分析，并给出了断路器的整体控制方法。为满足微型电网双向潮流的特殊应用，提出镜像结构的固态断路器拓扑。仿真结果表明，增加续流支路的固态断路器，过电压抑制效果明显。 |
| 关键词: 固态断路器 限流 过电压抑制 续流支路 微电网 |
| DOI： |
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| 基金项目:教育部留学回国人员科研启动基金资助项目（08002410012）；中央高校基本科研业务费专项资金资助项目（0800219169） |
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| Over-voltage suppression of solid-state circuit breaker |
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ZHANG Mingrui, JIN Xin, LIU Jinhui
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Tongji University，Shanghai 201804，China
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| Abstract: |
| The cause and decisive factors of over-voltage during the breaking-off of solid-state circuit breaker with short-circuit current are analyzed and a new type of its topology is proposed，which releases the electromagnetic energy of faulty line through a capacitive current branch to reduce the amplitude of over-voltage. The principle of over-voltage suppression with current release branch is analyzed and the overall control of solid-state circuit breaker is brought forward. A “mirror” structure of solid-state circuit breaker is proposed to meet the requirement of micro-grid for bi-directional power flow. Simulative results demonstrate its obvious effectiveness in over-voltage suppression. |
| Key words: solid-state circuit breaker current restriction over-voltage suppression current release circuit micro-grid |
