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Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors

Author

Listed:
  • Peng Zhou

    (School of Electrical Engineering, Shandong University, Jinan 250061, China)

  • Yanliang Xu

    (School of Electrical Engineering, Shandong University, Jinan 250061, China)

  • Wenji Zhang

    (Shengli Oilfield Shengli Pump Co., Ltd., Dongying 257082, China)

Abstract

At present, a large number of inefficient induction motors (IMs) are still being used in various industrial fields, resulting in a huge waste of energy. Obviously, it is expensive to replace all these machines with high-efficiency motors. Therefore, this paper will investigate the method of low-cost modification of inefficient IMs and propose a low-cost permanent magnetization remanufacturing (PMR) method that can make full use of the original structure of IMs. The PMR method converts the IM’s rotor into a permanent magnet (PM) rotor by directly milling slots in the original rotor and embedding PMs, thus improving the efficiency of the original motor to meet the IE4 standard. Firstly, this paper proposes the PMR process of IM, and based on this process, a Y2-132M1-6 IM is designed for remanufacturing, and the performance of the motor before and after the PMR is compared through finite-element analysis. Then, this paper researches the factors that may affect the starting performance and rated performance of the motor in the PMR design. Finally, based on the PMR design scheme, the Y2-132M1-6 IM is remanufactured into an experimental prototype. The total cost of the PMR is calculated and the performance improvement is tested through experiments.

Suggested Citation

  • Peng Zhou & Yanliang Xu & Wenji Zhang, 2023. "Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors," Energies, MDPI, vol. 16(17), pages 1-22, August.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:17:p:6142-:d:1223613
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    References listed on IDEAS

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    1. Catalin Petrea Ion & Marius Daniel Calin & Ioan Peter, 2023. "Design of a 3 kW PMSM with Super Premium Efficiency," Energies, MDPI, vol. 16(1), pages 1-11, January.
    2. Krzysztof Chmielowiec & Łukasz Topolski & Aleks Piszczek & Tomasz Rodziewicz & Zbigniew Hanzelka, 2022. "Study on Energy Efficiency and Harmonic Emission of Photovoltaic Inverters," Energies, MDPI, vol. 15(8), pages 1-23, April.
    3. Yaroslav Shklyarskiy & Zbigniew Hanzelka & Aleksandr Skamyin, 2020. "Experimental Study of Harmonic Influence on Electrical Energy Metering," Energies, MDPI, vol. 13(21), pages 1-13, October.
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