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

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...

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Main Authors: Peng Zhou, Yanliang Xu, Wenji Zhang
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/17/6142
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author Peng Zhou
Yanliang Xu
Wenji Zhang
author_facet Peng Zhou
Yanliang Xu
Wenji Zhang
author_sort Peng Zhou
collection DOAJ
description 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.
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spelling doaj.art-e53fd3dbbb344dd6989e0a0d7f1a54072023-11-19T08:03:51ZengMDPI AGEnergies1996-10732023-08-011617614210.3390/en16176142Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction MotorsPeng Zhou0Yanliang Xu1Wenji Zhang2School of Electrical Engineering, Shandong University, Jinan 250061, ChinaSchool of Electrical Engineering, Shandong University, Jinan 250061, ChinaShengli Oilfield Shengli Pump Co., Ltd., Dongying 257082, ChinaAt 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.https://www.mdpi.com/1996-1073/16/17/6142induction motorlow costpermanent magnetization remanufacturingefficiencyIE4
spellingShingle Peng Zhou
Yanliang Xu
Wenji Zhang
Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors
Energies
induction motor
low cost
permanent magnetization remanufacturing
efficiency
IE4
title Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors
title_full Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors
title_fullStr Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors
title_full_unstemmed Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors
title_short Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors
title_sort design consideration on a low cost permanent magnetization remanufacturing method for low efficiency induction motors
topic induction motor
low cost
permanent magnetization remanufacturing
efficiency
IE4
url https://www.mdpi.com/1996-1073/16/17/6142
work_keys_str_mv AT pengzhou designconsiderationonalowcostpermanentmagnetizationremanufacturingmethodforlowefficiencyinductionmotors
AT yanliangxu designconsiderationonalowcostpermanentmagnetizationremanufacturingmethodforlowefficiencyinductionmotors
AT wenjizhang designconsiderationonalowcostpermanentmagnetizationremanufacturingmethodforlowefficiencyinductionmotors