Simulation Analysis and Experimental Verification on Static Characteristics of AC Contactor

doi:10.16628/j.cnki.2095-8188.2024.12.002

Abstract

Abstract:

The calculation of static characteristics of AC contactor is the core of electromagnetic system design.Taking a type of three-phase AC contactor as an example,the finite element software COMSOL Multiphysics is applied to simulate the coil current,the flux linkage and the electromagnetic attraction under the condition of fixed magnetic gap,and the energy conversion relationship is studied through the extracted active power and reactive power.The influence of coil voltage and magnetic gap on electromagnetic attraction is analyzed.The experimental results are in good agreement with the simulation results.

Key words: AC contactor, static characteristics, finite element simulation, magnetic field energy, electromagnetic force

CLC Number:

TM572

DU Qingfeng, HE Yubin, ZHANG Chao, REN Wanbin. Simulation Analysis and Experimental Verification on Static Characteristics of AC Contactor[J]. LOW VOLTAGE APPARATUS, 2024, 0(12): 10-14.

Figures/Tables 13

References 16

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磁间隙/mm	相位差角度/(°)	相位差弧度/rad
1	18.52	0.323
2	13.28	0.232
3	9.49	0.166
4	8.51	0.149
5	3.70	0.117
6	6.01	0.105

磁间隙/ mm	视在功率S/ VA	有功功率P/ W	无功功率Q/ var
0	10.73	10.32	2.96
1	28.66	18.12	22.21
2	36.68	24.62	27.19
3	43.26	30.36	30.82
4	47.97	35.81	31.92
5	51.45	39.56	32.90
6	54.12	42.91	32.98