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电磁斥力快速开关研究 被引量:32

New High-speed Switch with Electromagnetic Repulsion Mechanism
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摘要 基于电磁斥力原理的快速开关具有操作机构简单,分闸速度快等优点,在混合型直流断路器以及故障限流器等场合起关键作用。文中通过三维有限元仿真与试验验证,对影响电磁斥力机构出力特性的多个参数进行了分析。并且在样机研制和测试过程中,重点分析了快速开关分闸弹跳过大并容易导致分闸失败的原因,推导了分闸弹跳物理过程中各参数的数学关系。测试结果表明,其9 mm满行程时间为2.9 ms,分闸反弹不超过2 mm。最后在总结15 kV中压快速开关研究的基础上,提出了高压快速开关的研究方向和重点。 High-speed switch based on electromagnetic repulsion principle has a simple operating mechanism and short breaking time. It plays a key role in hybrid DC breaker and fault current limiter,etc. This paper presents a new high-speed switch with electromagnetic repulsion mechanism, and designs a15 k V prototype by theoretical approximate calculation and finite element simulation analysis. The reason of opening bouncing and opening failure is analyzed, and mathematical relationships among all the parameters in opening bouncing process are derived. Test results show that the prototype's 9 mm-full stroke time is2.9 ms, and opening bouncing distance is not more than 2 mm. In addition, this paper proposes the directions and priorities for research of high voltage high-speed switch.
出处 《高压电器》 CAS CSCD 北大核心 2016年第3期147-154,共8页 High Voltage Apparatus
关键词 快速开关 电磁斥力机构 有限元分析 碰撞缓冲 high-speed switch electromagnetic repulsion mechanism finite element analysis collision buffer
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