DOI: https://doi.org/10.15407/techned2016.02.042

ANALYSIS OF DEMAGNETIZATION FAULT BACK-EMF OF PERMANENT MAGNET SYNCHRONOUS MOTOR USING MATHEMATICAL MODEL BASED ON MAGNETIC FIELD SUPERPOSITION PRINCIPLE

Authors
Zhiyan Zhang¹, Zehui Xie¹, Hongzhong Ma², Qin Zhong^3
1 – Zhengzhou University of Light Industry, College of Electrical and Information Engineering,
Dongfeng Road No. 5 Zhengzhou City Henan Province China,
e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript ; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
² – College of Energy and Electrical Engineering, Hohai University,
Fucheng West Road No. 8 Nanjing City Jiangsu Province, 210098, China,
e-mail: Hongzhong Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
³ – Huzhou Power Company, Electric Power Company of Zhejiang Province,
Fenghuang Road No.777 Huzhou City Zhejiang Province, 313000, China,
e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript

Abstract

According to magnetic field superposition principle and characteristic of square wave series, back-EMF of permanent magnet synchronous motor (PMSM) under demagnetization fault condition is decomposed into health component and demagnetization fault component. A operation of mathematical model of single slot and single phase no-load back-EMF, when demagnetization fault of different degree occurred in any magnetic body, any single pole and any multiple pole, is presented. The back-EMF mathematical model and the finite element simulation model results for 42 kW - PMSM, which has 8 poles and V-shaped permanent magnet rotor structure are compared, that allowed to verify the mathematical model. The results show that the back-EMF waveform of the slot winding can reflect the specific position and the severity of the demagnetization poles. The single phase back-EMF waveform can reflect only demagnetization conditions of all poles, but can not identify the specific position of the demagnetization poles. References 9, figures 5.

Key words: PMSM; demagnetization fault; back-EMF; mathematical model; simulation model.

Received:    18.11.2015
Accepted:    04.01.2016
Published:  18.03.2016

References

1. Antonio Garcia Espinosa, Javier A. Rosero, Jordi Cusido. Fault detection by means of Hilbert-huang transform of the stator current in a PMSM with demagnetization. IEEE Transactions on Energy Conversion.  2010.  No 2.  P. 312–318. DOI:  https://doi.org/10.1109/TEC.2009.2037922
2. Jongman Hong, Doosoo Hyun, Sang Bin Lee. Automated monitoring of magnet quality for permanent magnet synchronous motors at Standstill. IEEE Transaction on Industry Applications.  2010.  No 4.  P. 1397–1405. DOI:  https://doi.org/10.1109/TIA.2010.2049811
3. Jordi-Roger Riba Ruiz, Javier A.Rosero, Antonio Garcia Espinosa. Detection of demagnetization faults in permanent-magnet synchronous motors under nonstationary conditions. IEEE Transactions on Magnetics.  2009.  No 7.  P. 2961–2969. DOI: https://doi.org/10.1109/TMAG.2009.2015942
4. Julio-Cesar Urresty, Jordi-Roger Riba, Miguel Delgado. Detection of demagnetization faults in surface mounted permanent magnet synchronous motors by means of the zero-sequence Voltage Component. IEEE Transactions on Energy Conversion.  2012.  No 1.  P. 42–51. DOI:  https://doi.org/10.1109/TEC.2011.2176127
5. Leila Parsa, Hamid A., Toliyat. Fault-tolerant interior permanent magnet machines for hybrid electric vehicle applications. IEEE Transaction on Vehicular Technology.  2007.  No 4.  P. 1546–1552. DOI: https://doi.org/10.1109/TVT.2007.896978
6. LU Weifu, LIU Mingji, LUO Yingli. Demagnetization field analysis and calculation for line-start permanent magnet synchronous motor during start process. Proceedings of the CSEE.  2011.  No 15.  P. 53–60.
7. Marius Rosu, Julius Saitz, Antero Arkkio. Hysteresis model for finite-element analysis of permanent demagnetization in a large synchronous motor under a fault condition. IEEE Transactions on Magnetics.  2005.  No 6.  P. 2118–2123. DOI:  https://doi.org/10.1109/TMAG.2005.848319
8. Miguel Delgado Prieto, Antonio Garcia Espinosa, Jordi Roger Riba Ruiz. Feature extraction of demagnetization faults in permanent-magnet synchronous motors based on box-counting fractal dimension. IEEE Transactions on Industry Electronics. 2011.  No 5.  P. 923–932. DOI: https://doi.org/10.1109/TIE.2010.2066538
9. Sami Ruoho, Emad Dlala, Antero Arkkio. Comparison of demagnetization models for finite-element analysis of permanent-magnet synchronous machine. IEEE Transactions on Magnetics.  2007.  No 11.  P. 3964–3968. DOI: https://doi.org/10.1109/TMAG.2007.906749

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