中国电机工程学报2017，Vol.37Issue(6)：1819-1827,9.DOI:10.13334/j.0258-8013.pcsee.160105
新型单极电磁开关分断过程动态特性研究
Research on Dynamic Breaking Characteristics of New Unipolar Electromagnetic Switch
摘要
Abstract
During the breaking course of electromagnetic switch,it involves in several physical fields,such as electricity,magnetism,heat,fluid and mechanics.Based on secondary development of related softwares,a multi-physics collaborative simulation method was proposed and collaborative system was established.With the coupling parameters extracted,the design of the electronic control module has been integrated into three-dimensional (3D) dynamic simulation.Moreover,the 3D transient moving tracks of the movable contact under the control of rapid demagnetization were obtained through mechanical dynamics model in the breaking course.The results of simulations and experiments indicate that the breaking time can be reduced and the breaking speed can be improved significantly with negative DC voltage exerted on both ends of the coil.In addition,magnetohydrodynamics and dynamic mesh technology have been introduced to the simulation for calculating the distribution of arc temperature field and flow field.It realizes the overall analysis of electromagnetic switch during the breaking course,which provides theoretical basis for the improvement of breaking characteristics and the design of high-performance intelligent switches.关键词
电磁开关/协同仿真/动态特性/开关电弧/磁流体动力学Key words
electromagnetic switch/collaborative simulation/dynamic characteristics/switch arc/magnetohydrodynamics分类
信息技术与安全科学引用本文复制引用
林文贵,许志红..新型单极电磁开关分断过程动态特性研究[J].中国电机工程学报,2017,37(6):1819-1827,9.基金项目
国家自然科学基金项目(51277031) （51277031）
福建省科技厅重点项目(2014H0002).Project Supported by National Natural Science Foundation of China (51277031) （2014H0002）
Project Supported by the Key Program of Fujian Provincial Department of Science & Technology (2014H0002). （2014H0002）
