摘要
直流接触器是新能源系统以及电动汽车中配置最为广泛的开关电器之一。而直流接触器的动态特性是衡量直流接触器性能的重要指标之一。文中以并联双线圈式直流接触器为研究对象,建立了直流接触器电磁机构的动力学模型,利用基于Adams与Maxwell软件的联合仿真研究方法对直流接触器的电磁机构进行合闸过程的仿真分析,研究结果表明,机构合闸动作的仿真合闸时间与试验合闸时间相吻合,验证了该仿真方法的正确性。同时研究了弹簧参数和线圈参数等因素对机构合闸运动特性的影响,发现在一定范围内弹簧预压力变化对合闸时间影响不大,线圈安匝数增大会导致合闸时间变小,线圈内阻增大会导致合闸时间变大且动触头弹跳更剧烈。文中的仿真方法与结果能为直流接触器电磁机构的改进设计与优化提供一定参考。
DC contactor is one of the most widely configured switching appliances in new energy systems and electric vehicles.The dynamic characteristic of DC contactor is one of the important indexes to measure the performance of DC contactor.A dynamic model of the electromagnetic mechanism of DC contactor with parallel double coil type is established in this paper.Dynamical model of the electromagnetic mechanism of DC contactor is simulated.The closing process simulation analyzed of the electromagnetic mechanism of DC contactor by using the co-simulation research method based on Adams and Maxwell.The research results show that the simulation closing time of the closing action the mechanism is consistent with the test closing time.The correctness of the simulation method is verified.At the same time,the influence of spring parameters,coil parameters and other factors on the closing motion characteristics of the mechanism is studied.The change of spring pre-pressure has little influence on the closing time within a certain range.The increase of coil ampere turns will lead to the decrease of closing time,the increase of coil internal resistance will lead to the increase of closing time and the more severe bouncing of moving contact.The simulation method and results can provide some reference for the improvement design and optimization of DC contactor electromagnetic mechanism.
作者
鄢呈旸
王立军
张闻哲
黄一凡
王凯
YAN Chengyang;WANG Lijun;ZHANG Wenzhe;HUANG Yifan;WANG Kai(Xi′an Jiaotong University(State Key Laboratory of Electrical Insulation and Power Equipment),Xi′an 710049,China)
出处
《电力工程技术》
北大核心
2024年第1期201-211,共11页
Electric Power Engineering Technology
基金
国家自然科学基金资助项目(52377157)
四川省科技支撑计划资助项目(2023YFSY0013)。
关键词
直流接触器
并联双线圈式
电磁机构
合闸动作
动力学仿真
电磁耦合
DC contactor
parallel double coil type
electromagnetic mechanism
closing action
dynamic simulation
electromagnetic coupling
