关键词: 磁保持继电器, 电磁系统, 仿真平台, Maxwell二次开发

Abstract:

To address the issue of time-consuming repetitive tasks such as modeling, material addition and solution settings for the electromagnetic system simulation analysis of different models of magnetic latching relay, an electromagnetic field simulation analysis platform for electromagnetic systems is developed based on the MATLAB App Designer software platform. The secondary development is carried out on the pre-processing and post-processing modules of the electromagnetic field analysis software Maxwell. Through creating a user-friendly human-computer interaction platform, Maxwell is called for parameterized modeling and numerical simulation solution. This designed platform is used to analyze the effects of the air gap of the armature assembly, the armature chamfer and the distance between the yoke and the magnet steel on the electromagnetic torque. The simulation results show that the air gap between the armature and the magnet steel reduces the permanent magnetic holding force. Appropriately increasing the armature chamfer helps to enhance the permanent magnetic holding force. When the distance between the yoke and the magnet steel is small, it is beneficial for the magnetic latching relay to act ealier, but the permanent magnetic holding force will be reduced.

Key words: magnetic latching relay, electromagnetic system, simulation platform, secondary development of Maxwell