【摘要】：繼電器電磁機構(gòu)的動態(tài)特性受其本身發(fā)熱及環(huán)境溫度的共同影響,在仿真時忽略以上因素會導(dǎo)致結(jié)果準確性降低。為解決該問題,通過分析動態(tài)特性和熱場計算的數(shù)學方程,提出一種基于有限元仿真的電磁-熱耦合建模方法。該方法旨在通過Flux與Simulink聯(lián)合仿真,結(jié)合相似原理、電阻溫度系數(shù)和J-A模型,建立一個綜合考慮傳熱學系數(shù)、線圈電阻和軟磁材料性能的耦合仿真模型。以大功率直流繼電器GL200為例,運用耦合建模方法,對不同環(huán)境溫度和反復(fù)短時工作狀態(tài)下電磁機構(gòu)動態(tài)特性進行仿真分析,并通過與實測數(shù)據(jù)的對比,證明電磁-熱耦合模型仿真結(jié)果比忽略溫度的模型仿真結(jié)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，

本文編號：2482079