Design of coreless-typed linear synchronous motor for 600km/h very high speed train

2013 ◽  
Author(s):  
Chan-Bae Park ◽  
Byung-Song Lee ◽  
Jun-Ho Lee ◽  
Su-Kil Lee ◽  
Jae-Hee Kim ◽  
...  
Keyword(s):  
High Speed ◽  
Synchronous Motor ◽  
High Speed Train ◽  
Linear Synchronous Motor ◽  
Very High

A Study on the Structure of Linear Synchronous Motor for 600km/h Very High Speed Train

2013 ◽  
Vol 416-417 ◽  
pp. 317-321 ◽  
Author(s):  
Chan Bae Park ◽  
Byung Song Lee ◽  
Jae Hee Kim ◽  
Jun Ho Lee ◽  
Hyung Woo Lee
Keyword(s):  
High Speed ◽  
Type System ◽  
Synchronous Motor ◽  
Propulsion System ◽  
Contact Method ◽  
High Speed Train ◽  
Maglev Train ◽  
Railway Systems ◽  
Linear Synchronous Motor ◽  
Very High

Recently, an interest in a hybrid system combining only the merits of the conventional wheel-rail system and Maglev propulsion system is growing as an alternative to high-speed maglev train. This hybrid-type system is based on wheel-rail method, but it enables to overcome the speed limitation by adhesion because it is operated by a non-contact method using a linear motor as a propulsion system and reduce the overall construction costs by its compatibility with the conventional railway systems. Therefore, a comparative analysis on electromagnetic characteristics according to the structural combinations on the stator-mover of Linear Synchronous Motor (LSM) for Very High Speed Train (VHST) maintaining the conventional wheel-rail method is conducted, and the structure of coreless superconducting LSM suitable for 600 km/h VHST is finally proposed in this paper.

Analysis of the influence of magnetic stiffness on running stability in a high-speed train propelled by a superconducting linear synchronous motor

2018 ◽  
Vol 233 (2) ◽  
pp. 170-186 ◽  
Author(s):  
Jin-Ho Lee ◽  
Chang-Young Lee ◽  
Jeong-Min Jo ◽  
Jungyoul Lim ◽  
Jaeheon Choe ◽  
...  
Keyword(s):  
Dynamic Model ◽  
High Speed ◽  
Synchronous Motor ◽  
High Speed Train ◽  
Traction Motor ◽  
Magnetic Stiffness ◽  
Linear Synchronous Motor ◽  
The Stability

There are two major obstacles that prevent a conventional train from achieving high speed: the limitation of wheel–rail adhesion and the increase of instability in the wheel–rail running dynamics. To overcome these problems, a new hybrid train model is introduced in this study. This train utilizes a superconducting linear synchronous motor (SC-LSM), instead of a traction motor, for propulsion; therefore, this train does not have the limitation of adhesion between the wheel and the rail. Using an SC-LSM also improves the stability of the train during high-speed operations. The magnetic stiffness between the train and the guideway is additionally generated by using the SC-LSM, which is favorable for the running stability at a high speed. This study focuses on the magnetic stiffness and its effect on the running stability in the proposed hybrid train model. First, the magnetic stiffness in the SC-LSM is investigated both theoretically and experimentally. Then, a train dynamic model including the magnetic stiffness is developed and the effect of magnetic stiffness on the running stability is analyzed through various simulations.

Sign in / Sign up

Export Citation Format

Share Document