Investigation of superconducting linear synchronous motor propulsion control via an exact mathematical model

1999 ◽  
Vol 128 (2) ◽  
pp. 45-52 ◽  
Author(s):  
Tetsuzo Sakamoto
Keyword(s):  
Mathematical Model ◽  
Synchronous Motor ◽  
Linear Synchronous Motor ◽  
Propulsion Control

Magnetic Levitation Permanent Magnet Linear Synchronous Motor Electromagnetic Analysis

2011 ◽  
Vol 383-390 ◽  
pp. 5233-5237
Author(s):  
Yi Peng Lan ◽  
Cheng Jun Li
Keyword(s):  
Mathematical Model ◽  
Permanent Magnet ◽  
Magnetic Levitation ◽  
Levitation Force ◽  
Synchronous Motor ◽  
Linear Motor ◽  
Cnc Machine ◽  
Element Analysis ◽  
Linear Synchronous Motor ◽  
The Mathematical Model

According to the problem of the friction between the mover and the static guide rail in the linear motor drive system of CNC machine tool, this paper proposed the direct magnetic levitation permanent magnet linear synchronous motor to achieve friction-free feed. The mover of the direct magnetic levitation permanent magnet linear motor consists of two sets of windings. One is the thrust winding, which is used to generate electromagnetic thrust, the other is the suspension winding, which is used to generate magnetic levitation force. The mathematical model of the motor’s electromagnetic thrust and levitation force is derived by the Maxwell stress tensor method. Ansoft is used for making finite element analysis of the motor’s electromagnetic thrust and levitation force. The results verified the correctness of the mathematical model. The feasibility of friction-free feed with two-winding direct magnetic levitation permanent magnet synchronous motor is proved.

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