继电器电磁机构电磁-热耦合模型建立与计算方法
发布时间：2019-05-21 11:46
【摘要】：继电器电磁机构的动态特性受其本身发热及环境温度的共同影响,在仿真时忽略以上因素会导致结果准确性降低。为解决该问题,通过分析动态特性和热场计算的数学方程,提出一种基于有限元仿真的电磁-热耦合建模方法。该方法旨在通过Flux与Simulink联合仿真,结合相似原理、电阻温度系数和J-A模型,建立一个综合考虑传热学系数、线圈电阻和软磁材料性能的耦合仿真模型。以大功率直流继电器GL200为例,运用耦合建模方法,对不同环境温度和反复短时工作状态下电磁机构动态特性进行仿真分析,并通过与实测数据的对比,证明电磁-热耦合模型仿真结果比忽略温度的模型仿真结果更加合理。
[Abstract]:The dynamic characteristics of relay electromagnetic mechanism are affected by its own heating and environmental temperature. Neglecting the above factors in simulation will lead to the reduction of the accuracy of the results. In order to solve this problem, an electromagnetic-thermal coupling modeling method based on finite element simulation is proposed by analyzing the mathematical equations of dynamic characteristics and thermal field calculation. The purpose of this method is to establish a coupling simulation model considering heat transfer coefficient, coil resistance and soft magnetic material properties through joint simulation of Flux and Simulink, combined with similarity principle, resistance temperature coefficient and J 鈮，
本文编号：2482079
[Abstract]:The dynamic characteristics of relay electromagnetic mechanism are affected by its own heating and environmental temperature. Neglecting the above factors in simulation will lead to the reduction of the accuracy of the results. In order to solve this problem, an electromagnetic-thermal coupling modeling method based on finite element simulation is proposed by analyzing the mathematical equations of dynamic characteristics and thermal field calculation. The purpose of this method is to establish a coupling simulation model considering heat transfer coefficient, coil resistance and soft magnetic material properties through joint simulation of Flux and Simulink, combined with similarity principle, resistance temperature coefficient and J 鈮，
本文编号：2482079
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