Rotor demagnetization effects on permanent magnet synchronous machines

被引：42
作者：
Ruschetti, Cristian [1 ]
Verucchi, Carlos [2 ]
Bossio, Guillermo [1 ]
De Angelo, Cristian [1 ]
Garcia, Guillermo [1 ]
机构：
[1] Univ Nacl Rio Cuarto, Fac Ingn, Grp Elect Aplicada, Cordoba, Argentina
[2] Univ Nacl Ctr Prov Buenos Aires, Grp INTELYMEC, Buenos Aires, DF, Argentina
来源：
ENERGY CONVERSION AND MANAGEMENT | 2013年 / 74卷
关键词：
Permanent magnet synchronous machine; Demagnetization; Fault detection; Parallel windings; Finite element method; FAULT-DIAGNOSIS; DYNAMIC ECCENTRICITY; INDUCTION-MOTORS; LOAD; BARS;
D O I：
10.1016/j.enconman.2013.05.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effects of asymmetrical magnet faults on the rotor of Permanent Magnet Synchronous Machines (PMSM) are analyzed in the present work. Two different stator winding configurations, series and parallel connected windings, are considered in the analysis. From PMSM with parallel windings, a fault detection strategy based on the information contained in the branch-current spectrum is proposed. A fault severity factor is defined to quantify demagnetization on a single magnet. This factor is practically independent from the motor load conditions. Simulation results using a finite element model are obtained to evaluate the feasibility of the proposal. Additionally, voltage reduction and current derating due to rotor demagnetization are also evaluated. Experimental results are presented to validate the proposal. (C) 2013 Elsevier Ltd. All rights reserved.
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页码：1 / 8
页数：8
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