Numerical calculation of primary slot leakage inductance of a Single-sided HTS linear induction motor used for linear metro

作者：Li, Dong^*; Wen, Yinghong; Li, Weili; Fang, Jin; Cao, Junci; Zhang, Xiaochen; Lv, Gang

来源：Cryogenics, 2017, 82: 38-47.

DOI：10.1016/j.cryogenics.2017.01.003

• HTS linear induction motor
• Longitudinal end effect
• Transversal edge effect
• Asymmetric primary slot leakage
• inductance Magnetic saturation
• 3-D finite element method

In the paper, the numerical method calculating asymmetric primary slot leakage inductances of Single sided High-Temperature Superconducting (HTS) Linear Induction Motor (HTS LIM) is presented. The mathematical and geometric models of three-dimensional nonlinear transient electromagnetic field are established and the boundary conditions are also given. The established model is solved by time stepping Finite Element Method (FEM). Then, the three-phase asymmetric primary slot leakage inductances under different operation conditions are calculated by using the obtained electromagnetic field distribution. The influences of the special effects such as longitudinal end effects, transversal edge effects, etc. on the primary slot leakage inductance are investigated. The presented numerical method is validated by experiments carried out on a 3.5 kW prototype with copper wires which has the same structures with the HTS LIM.

• 出版日期2017-3
• 单位北京交通大学