[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(
)
基于绕组函数理论的长定子直线同步电机内部故障仿真计算
)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
- 基于绕组函数理论的长定子直线同步电机内部故障仿真计算
- Author(s):
- Yu Fang; Yu Haitao; Hu Minqiang
- School of Electrical Engineering, Southeast University, Nanjing 210096, China
- 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.
- 为了保证高速磁浮列车系统安全牵引运行, 提出一种基于绕组函数理论的新颖模型并用该模型对长定子直线同步电机进行建模, 便于实时计算列车的运行状态. 首先在正常运行模型的基础上推导长定子直线同步电机在不同故障状态下的精确耦合数学模型, 然后对其运行时存在的主要潜在定子绕组内部故障如单相短路、相间短路和单相开路等进行故障电流、电磁力仿真计算. 将计算得到的直线电机运行电磁力随定子电流变化的特性曲线与有限元方法的结果进行对比, 验证了所提出的电磁力公式的准确性. 通过比较在不同故障类型和故障短路比下故障电流、电磁力仿真结果的变化情况, 找出了内部故障规律, 同时显示了此解析数学模型在电机故障快速识别中具有可用性.
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.