A Survey on Mechanical Switches for Hybrid Circuit Breakers
A Survey on Mechanical Switches for Hybrid Circuit Breakers
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DOI：
10.1109/pesgm40551.2019.8973674
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发表时间：
2019-08
期刊：
影响因子：
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通讯作者：
Chunmeng Xu;T. Damle;L. Graber
中科院分区：
文献类型：
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作者：
Chunmeng Xu;T. Damle;L. Graber
混合式断路器是一种保护装置，用于AC和DC电力系统中的故障电流限制和快速中断。它们是多端直流输配电系统的关键使能技术之一。随着DC电力系统的额定功率增加，选择正常导电路径中的机械开关以在混合断路器拓扑结构中提供低导通状态损耗。这些机械开关需要快速致动以实现亚毫秒的切换能力，据报道，仅少数致动机构适合于此。除了电磁排斥方法，如汤姆逊线圈，压电致动器似乎也是一个很好的候选人。本文对考虑不同驱动机制的混合断路器的潜在机械开关进行了调查。总结和比较了文献中报道的机械开关的性能，如响应时间、位移和所需的驱动能量。
Hybrid circuit breakers are a class of protection devices to facilitate fault current limitation and fast interruption in AC and DC power systems. They are one of the key enabling technologies of multi-terminal DC transmission and distribution systems. As the power rating of DC power systems increases, mechanical switches in the normal conduction path are chosen to provide low on-state loss in a hybrid circuit breaker topology. These mechanical switches require fast actuation to achieve sub- millisecond switching capability, for which only a few actuation mechanisms have been reported to be suitable. Besides electromagnetic repulsion methods like the Thomson coil, piezoelectric actuators also appear to be a good candidate. This paper provides a survey on potential mechanical switches for hybrid circuit breakers considering different actuation mechanisms. Performances of mechanical switches reported in the literature have been summarized and compared, such as response time, displacement, and required actuation energy.