Research on Autonomous Simulation Software for Dynamic Characteristics of Low Voltage Contactors

doi:10.16628/j.cnki.2095-8188.2025.02.005

Abstract

Abstract:

A software for calculating the dynamic characteristics of contactors is developed based on the domestic electromagnetic simulation platform Simdroid.The software calculation process consists of three parts:finite element static magnetic field calculation,current calculation,and motion calculation.The finite element static magnetic field calculation is implemented by Simdroid.In the current calculation,the main circuit parameters are input based on the static magnetic field results to calculate the current at each time.During the motion calculation,the position of the iron core at each time is determined by the forces acting on it.After updating the position,the finite element static magnetic field calculation is performed again,and the iteration continues until the termination condition is reached.Experiments show that the displacement and current curves of the moving iron core show good agreement between the experimental and simulated results.Therefore,the proposed software can be an effective numerical tool for analyzing the dynamic characteristics of contactors.

Key words: contactor, electromagnetic system, finite elements, dynamic characteristics

CLC Number:

TM572

TANG Lingzhi, SUN Hao, WANG Zifeng, NIU Chunping, WU Yi. Research on Autonomous Simulation Software for Dynamic Characteristics of Low Voltage Contactors[J]. LOW VOLTAGE APPARATUS, 2025, 0(2): 29-35.

Figures/Tables 12

References 21

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