直流断路器用快速开关多场联合仿真优化方法  

Multi-field Co-simulation Optimization Method for High-speed Switch in DC Circuit Breaker

作　　者：田宇[1,2] 王利 田阳 李志兵 董恩源 TIAN yu;WANG Li;TIAN Yang;LI Zhibing;DONG Enyuan(School of Electrical Engineering,Dalian University of Technology,Dalian 116024,China;China Electric Power Research Institute,Beijing 100192,China)

机构地区：[1]大连理工大学电气工程学院,大连116024 [2]中国电力科学研究院有限公司,北京100192

出　　处：《高电压技术》2019年第1期55-62,共8页High Voltage Engineering

基　　金：国家重点研发计划(2017YFB0902405);国家自然科学基金(51277019)~~

摘　　要：高速机械开关是混合式高压直流断路器中的关键部件,多采用电磁斥力机构,整个运动过程涉及多物理场耦合,现阶段单一电磁场仿真并不能准确的反应开关的分闸反弹和和合闸弹跳等运动特性,开展了电磁场与机械系统动力学联合仿真的研究。首先,设计了一种基于双稳态弹簧保持机构和电磁斥力机构的高速真空机械开关;其次,提出了一种能够全面反应快速开关动态特性的电磁场与机械动力学联合仿真方法;最后,建立了高速机械开关仿真模型,仿真分析了线圈、金属盘、储能电容等参数对快速开关分/合闸运动及碰撞特性的影响并进行了优化设计。优化结果表明,所设计的高速机械开关分闸在2 ms内运动20 mm全行程。该文的优化设计方法为混合式直流断路器快速机械开关优化设计提供理论指导,对于其他快速机械开关设计也有参考价值。As the key component of hybrid HVDC circuit breaker, high-speed mechanical switch(HSMS) is mostly driven by electromagnetic repulsion mechanism(ERM). Because the whole motion process involves multi physical field coupling, the single electromagnetic simulation at present can not accurately reflect the movement characteristics of opening rebound and closing bounce. Consequently, the joint simulation of electromagnetic field and mechanical system dynamics is carried out. First, an HSMS based on bistable spring holding mechanism and ERM is designed. Secondly, a joint simulation method of electromagnetic field and mechanical dynamics that can fully respond to HSMS dynamic characteristics is proposed. Finally, the simulation model of HSMS is set up, and the influences of the parameters of coil, metal plate and capacitance on HSMS movement and impact characteristics are simulated and analyzed, and the optimal design is carried out. The optimization results show that the HSMS designed in this paper can move the 20 mm full stroke in 2 ms. The optimization design method provides theoretical guidance for the optimization design of the HSMS of the Hybrid DC circuit breaker, and is also of reference value for the other fast switch design.

关 键 词：直流断路器 高速机械开关 斥力机构 ANSYS ADAMS 联合仿真 碰撞 

分 类 号：TM561[电气工程—电器]