Abstract：AC contactor is a frequently operated switching device, and its match of the magnetic force and reaction force during movement directly affects the reliability and performance. A good force match can reduce contact bounce and improve breaking performance. In the process, the spring system plays a key role. For the multi-objective optimization of the spring system, an electromagnetic-mechanical coupling simulation framework and an entity simulation method for springs are presented. A comprehensive optimization method based on grey relational method and response surface method is introduced. The second-order prediction model is established that describes the influence of contact spring free height, contact spring effective coil number, reaction spring free height and reaction spring effective coil number on bounce time, contact breaking velocity, contact closing velocity and iron core closing velocity. Accordingly, the reaction system parameters are optimized. The experimental results show that the optimal reaction system parameters can effectively reduce the bounce time and the closing time of the contact and the iron core, and increase the contact breaking velocity, which is helpful to improve the working performance of AC contactors.
唐昭晖, 许志红. 基于响应面法的交流接触器弹簧系统优化设计方法[J]. 电工技术学报, 2022, 37(2): 515-527.
Tang Zhaohui, Xu Zhihong. Optimal Design Method for AC Contactor Spring System Based on Response Surface Method. Transactions of China Electrotechnical Society, 2022, 37(2): 515-527.
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