A Piecewise Equivalent Circuit and Characteristic Analysis of Linear Induction Traction Motor when the Secondary is Discontinuous

被引：0
|
作者：
Lü G. [1 ]
Luo Z. [1 ]
Zeng D. [2 ]
Zhou T. [1 ]
机构：
[1] School of Electrical Engineering, Beijing Jiaotong University, Beijing
[2] Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2021年 / 36卷 / 05期
关键词：
Analysis model; Discontinuous secondary; End effects; Equivalent circuit; Half-filled slots; Linear induction motor;
D O I：
10.19595/j.cnki.1000-6753.tces.201025
中图分类号：
学科分类号：
摘要：
A piecewise equivalent circuit model is proposed, and the electromagnetic phenomena and characteristics of linear induction traction motor with discontinuous secondary are analyzed. Firstly, the physical model of linear induction motor with discontinuous secondary is established. According to the coupling situation of primary and secondary, the process of primary passing through discontinuous region is divided into nine stages. Secondly, a piecewise equivalent circuit model is proposed, and the variation of equivalent circuit parameters are analyzed when the secondary discontinuity occurs. Then, the effects of the finite length of primary core, transverse and longitudinal end effects, skin effect and half-filled slots of primary are considered. According to the electromagnetic field analysis model and the integral interval of each stage, the thrust, reactive power transferred by air gap, eddy current loss of secondary plate, mechanical efficiency and equivalent circuit parameters are calculated. Finally, thrust under different frequencies and speeds, the dynamic curves of thrust and efficiency, are compared with the experimental results, and the characteristics of the motor are analyzed, which verify the correctness of the equivalent circuit. © 2021, Electrical Technology Press Co. Ltd. All right reserved.
引用
收藏
页码：944 / 953
页数：9
相关论文
共 25 条
  • [1] Lu Qinfen, Kong Hao, Shi Jiameng, Et al., Research on single-pulse control of traction PMSM in high speed train based on co-simulation model, Transactions of China Electrotechnical Society, 30, 14, pp. 61-66, (2015)
  • [2] Li Liyi, Tang Yongbin, Liu Jiaxi, Et al., Application of the multiple population genetic algorithm in optimum design of air-core permanent magnet linear synchronous motors, Proceedings of the CSEE, 33, 15, pp. 69-77, (2013)
  • [3] Lu Gang, ZhouTong, Zeng Dihui, Et al., Design of ladder-slit secondaries and performance improvement of linear induction motors for urban rail transit, IEEE Transactions on Industrial Electronics, 65, 2, pp. 1187-1195, (2018)
  • [4] Cao Ruiwu, Su Enchao, Zhang Xue, Investigation of linear flux-switching permanent magnet motor with segmented secondary for rail transit, Transactions of China Electrotechnical Society, 35, 5, pp. 1001-1012, (2020)
  • [5] Zhang Qian, Liu Huijuan, Ma Jiefang, Et al., calculation of electromagnetic performance for long primary double sided linear induction motors considering backward traveling wave, Transactions of China Electrotechnical Society, 35, 7, pp. 1398-1409, (2020)
  • [6] Wang Mingjie, Xu Wei, Yang Cunxiang, Et al., Analytical calculation of no-load magnetic field in permanent magnet linear synchronous motors based on an accurate subdomain model, Transactions of China Electrotechnical Society, 35, 5, pp. 942-953, (2020)
  • [7] Fu Dongxue, Zhao Ximei, Analytical calculation of adaptive backstepping global fast terminal sliding mode control for permanent magnet linear synchronous motor, Transactions of China Electrotechnical Society, 35, 8, pp. 1634-1641, (2020)
  • [8] Zhang Bo, GeQiongxuan, Liu Jinxin, Et al., Research on speed sensorless control of long stator linear synchronous motor based on EEMF, Transactions of China Electrotechnical Society, 32, 23, pp. 91-99, (2017)
  • [9] Yang Yang, Zhao Jiwen, Song Juncai, Et al., Structural optimization of air-core permanent magnet synchronous linear motors based on deep neural network models, Proceedings of the CSEE, 39, 20, pp. 6085-6094, (2019)
  • [10] Koseki T, Sone S, Yokoi T, Et al., Investigation of secondary slot pitches of a cage-type linear induction motor, IEEE Transactions on Magnetics, 29, 6, pp. 2944-2946, (1993)
123