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Open AccessArticle

Analysis of the Partial Demagnetization Process of Magnets in a Line Start Permanent Magnet Synchronous Motor

Faculty of Control, Robotics and Electrical Engineering, Poznan University of Technology, 60-965 Poznan, Poland
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Energies 2020, 13(21), 5562; https://doi.org/10.3390/en13215562
Received: 5 October 2020 / Revised: 19 October 2020 / Accepted: 21 October 2020 / Published: 23 October 2020
The paper justifies the validity of analyzing the impact of temperature and the process of partial demagnetization of magnets on the operating parameters of machines. To analyze this impact, a field model of coupled electromagnetic and thermal phenomena in a permanent magnet synchronous motor was proposed. The non-linearity of the magnetic circuit, the effect of temperature on the magnetic, electrical and thermal properties of the materials as well as the developed method of modeling the process of partial demagnetization of the magnet were taken into account. Based on this model, an algorithm and software were developed to analyze the effect of temperature and the process of partial demagnetization of magnets on the work of the line start permanent magnet synchronous motor (LSPMSM). The elaborated software was used to study the effect of temperature during the motor starting phase on the magnetization state of the magnets after the start-up process. The calculation results were compared to the results of experimental studies. The experimental tests were carried out on a specially constructed test stand. The results of the research on the process of partial demagnetization of the magnets are presented and the conclusions resulting therefrom formulated. View Full-Text
Keywords: permanent magnet motors; LSPMSM; demagnetization of permanent magnets; partial demagnetization; coupled electromagnetic-thermal phenomena; finite element analysis; analysis of coupled phenomena; influence of temperature on LSPMSM operation permanent magnet motors; LSPMSM; demagnetization of permanent magnets; partial demagnetization; coupled electromagnetic-thermal phenomena; finite element analysis; analysis of coupled phenomena; influence of temperature on LSPMSM operation
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MDPI and ACS Style

Baranski, M.; Szelag, W.; Lyskawinski, W. Analysis of the Partial Demagnetization Process of Magnets in a Line Start Permanent Magnet Synchronous Motor. Energies 2020, 13, 5562. https://doi.org/10.3390/en13215562

AMA Style

Baranski M, Szelag W, Lyskawinski W. Analysis of the Partial Demagnetization Process of Magnets in a Line Start Permanent Magnet Synchronous Motor. Energies. 2020; 13(21):5562. https://doi.org/10.3390/en13215562

Chicago/Turabian Style

Baranski, Mariusz; Szelag, Wojciech; Lyskawinski, Wieslaw. 2020. "Analysis of the Partial Demagnetization Process of Magnets in a Line Start Permanent Magnet Synchronous Motor" Energies 13, no. 21: 5562. https://doi.org/10.3390/en13215562

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