[1] Yu Fang, Yu Haitao, Hu Minqiang,. Simulation and calculation of internal faults in long-stator linearsynchronous motor based on winding function theory [J]. Journal of Southeast University (English Edition), 2010, 26 (1): 53-57. [doi:10.3969/j.issn.1003-7985.2010.01011]

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Simulation and calculation of internal faults in long-stator linearsynchronous motor based on winding function theory()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

26

Issue:

2010 1

Page:

53-57

Research Field:

Electrical Engineering

Publishing date:

2010-03-30

Info

Title:

Simulation and calculation of internal faults in long-stator linearsynchronous motor based on winding function theory

Author(s):

Yu Fang;  Yu Haitao;  Hu Minqiang

School of Electrical Engineering, Southeast University, Nanjing 210096, China

Keywords:

long-stator linear synchronous motor;  winding function theory;  internal faults

PACS:

TM341

DOI:

10.3969/j.issn.1003-7985.2010.01011

Abstract:

To guarantee the safety of the high speed maglev train system, a novel model based on the winding function theory is proposed for the long-stator linear synchronous motor(LSM), which is suitable for the real-time calculation of the running state. The accurate coupled mathematical models under different internal fault conditions of the LSM are derived based on the normal model. Then the fault currents and electromagnetic forces are simulated and calculated for the major potential internal faults of the LSM, such as the single-phase short circuit, the phase-phase short circuit and the single-phase open circuit. The characteristic curve between the electromagnetic force and the armature current of the LSM, which is compared with the results from the finite element method, proves the validation of the proposed method. The fault rule is determined and the proposed analytical model also shows its feasibility in the fast fault diagnosis through the comparison of the simulation results of currents and electromagnetic forces under different internal fault types and short circuit ratios.

References:

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Memo

Memo:

Biographies: Yu Fang(1985—), female, graduate; Yu Haitao(corresponding author), male, doctor, professor, htyu@seu.edu.cn.
Citation: Yu Fang, Yu Haitao, Hu Minqiang. Simulation and calculation of internal faults in long-stator linear synchronous motor based on winding function theory[J]. Journal of Southeast University(English Edition), 2010, 26(1): 53-57.

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