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A Novel Model of Electromechanical Contactors for Predicting Dynamic Characteristics

Author

Listed:
  • Gongrun Wang

    (School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China)

  • Yongxing Wang

    (School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China)

  • Lifan Zhang

    (School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China)

  • Shutian Xue

    (State Grid Shenyang Electric Power Supply Company Ltd., Shenyang 110811, China)

  • Enyuan Dong

    (School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China)

  • Jiyan Zou

    (School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China)

Abstract

To ensure the reliability of power supply, a dual power supply structure appears in the power distribution system. Power supply switching is a complex physical process. This paper presents a novel model of electromechanical contactors. This model can simulate the multi-physics process of power switching. This article completes the simulation framework for power switching through contactors for the first time. Among them, the structural topology for contactors is also proposed. On the basis of the novel structure topology, an equivalent magnetic circuit model is established to calculate the relationship between driving force, flux linkage, current, and displacement. Then, a co-simulation model is established between the above equations and Adams to obtain the speed characteristics and flight time of the contactor. Subsequently, through the use of Fluent and its secondary development, a magnetohydrodynamic model is established, and the above-mentioned velocity characteristics are imported into it to analyze the arcing characteristics of the contacts under the conditions of the transverse magnetic field and the insulating grid. The effectiveness of power switching is judged by comparing the flight time of the electromechanical model and the arcing time of the magnetohydrodynamic model. The prototype is manufactured and tested on the basis of simulation. Through experimental waveforms and high-speed photography, the accuracy of the simulation model and the practicability of the contactor are verified.

Suggested Citation

  • Gongrun Wang & Yongxing Wang & Lifan Zhang & Shutian Xue & Enyuan Dong & Jiyan Zou, 2021. "A Novel Model of Electromechanical Contactors for Predicting Dynamic Characteristics," Energies, MDPI, vol. 14(22), pages 1-15, November.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:22:p:7466-:d:675060
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    References listed on IDEAS

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    1. Shuhua Fang & Yong Chen & Haimiao Ni & Heyun Lin & Xingang Wang & Binruo Zhu & Yin Zhang, 2019. "A Novel Breaking Strategy for Reduced Response Time of Electromagnetic Contactor by Reverse Voltage Application," Energies, MDPI, vol. 12(5), pages 1-12, February.
    2. Hongfeng Li & Lifeng Cui & Zigang Ma & Bin Li, 2020. "Multi-Objective Optimization of the Halbach Array Permanent Magnet Spherical Motor Based on Support Vector Machine," Energies, MDPI, vol. 13(21), pages 1-20, October.
    3. Huihui Geng & Xueyi Zhang & Yufeng Zhang & Wenjing Hu & Yulong Lei & Xiaoming Xu & Aichuan Wang & Shanjian Wang & Liwei Shi, 2020. "Development of Brushless Claw Pole Electrical Excitation and Combined Permanent Magnet Hybrid Excitation Generator for Vehicles," Energies, MDPI, vol. 13(18), pages 1-13, September.
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    Cited by:

    1. Wen Wang & Zhibing Li & Keli Gao & Enyuan Dong & Xuebin Qu & Xiaodong Xu, 2022. "Dynamic Characteristics of Transverse-Magnetic-Field Induced Arc for Plasma-Jet-Triggered Protective Gas Switch in Hybrid UHVDC System," Energies, MDPI, vol. 15(16), pages 1-19, August.
    2. Ahmed H. Okilly & Namhun Kim & Jonghyuk Lee & Yegu Kang & Jeihoon Baek, 2023. "Development of a Smart Static Transfer Switch Based on a Triac Semiconductor for AC Power Switching Control," Energies, MDPI, vol. 16(1), pages 1-16, January.

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