摘要
混合型限流断路器是现代直流电力系统有效的短路保护设备,其中用于驱动高速限流断路器机械触头高速分闸的电磁斥力机构性能决定了混合型限流断路器的限流水平及分断的可靠性。分析了电磁斥力机构的工作原理,通过理论推导得到了电磁斥力的解析表达式,在此基础上得到其运动方程。介绍了电磁斥力机构的瞬态场有限元仿真方法,建立了1000 V/400 A样机的仿真模型,样机试验结果验证了理论分析与仿真计算的正确性,为电磁斥力机构的进一步优化设计打下坚实基础。
Hybrid current limiting circuit breaker is an effective short circuit protection equipment for modern DC power system. Electro-magnetic repulsion mechanism is used to drive the mechanical contact of the circuit breaker, and its performance decides the current limiting cap ability and reliability of the hybrid breaker. Principle of the electro-magnetic repulsion mechanism is analyzed, and the dynamic equation is gotten through deduction of the electro-magnetic force. Finite element simulation method of the electro-magnetic repulsion mechanism is introduced and simulation model of a I000 V/400 prototype is constructed. Experimental result of a prototype proves theoretical and simulation analysis. A stable foundation is build up for the optimizing of the electro-magnetic repulsion mechanism in the next stage.
出处
《船电技术》
2016年第8期1-4,共4页
Marine Electric & Electronic Engineering
基金
国家自然科学基金(51207166)
关键词
高速机械触头
电磁斥力机构
有限元仿真
混合型限流断路器
high speed contact
electro-magnetic repulsion mechanism
finite element simulation
hybrid current limiting breaker
