Characteristics Analysis of Linear Synchronous Motor Integrated with Propulsion, Levitation and Guidance in High-speed Maglev System

Because of its high dynamic response speed and acceleration, high rigidity and positioning accuracy, the permanent magnet linear synchronous motor (PMLSM) is able to meet the requirements of high-speed precision CNC machine tools. However, its thermal problems have seriously hampered its development. This paper establishes a PMLSM temperature field model, designs a cooling structure, determines the boundary conditions of the finite element model and conducts computer simulation of the model. The result shows that the designed cooling structure can effectively alleviate the motors thermal problems.

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Design and Characteristic Analysis on the Short-Stator Linear Synchronous Motor for High-Speed Maglev Propulsion

IEEE Transactions on Magnetics ◽

10.1109/tmag.2008.2001511 ◽

2008 ◽

Vol 44 (11) ◽

pp. 4369-4372 ◽

Cited By ~ 11

Author(s):

Han-Wook Cho ◽

Ho-Kyoung Sung ◽

So-Young Sung ◽

Dae-Joon You ◽

Seok-Myeong Jang

Keyword(s):

High Speed ◽

Synchronous Motor ◽

Characteristic Analysis ◽

Linear Synchronous Motor

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Design and Electromagnetic Analysis of a Double-Sided Permanent Magnet Linear Synchronous Motor

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.416-417.270 ◽

2013 ◽

Vol 416-417 ◽

pp. 270-275

Author(s):

Xin Min Zhang ◽

Chuan Ying Cheng ◽

Qin Fen Lu ◽

Yun Yue Ye ◽

Xiao Sheng Tao

Keyword(s):

Permanent Magnet ◽

High Speed ◽

Normal Force ◽

Thrust Force ◽

Cooling System ◽

Element Model ◽

Basic Structure ◽

Synchronous Motor ◽

Force Density ◽

Linear Synchronous Motor

The permanent magnet linear synchronous motor (PMLSM) has a good application prospect due to many significant advantages such as high speed, high precision, high thrust force density, simple structure, energy saving and reliable operation etc., so the research and development are of great importance. This paper mainly focuses on the key design points of a double-sided water-cooled PMLSM. According to the required thrust force, the design is given out including the basic structure parameters, winding connection methods and water cooling system. Based on the erected finite-element model, the performances such as back-EMF, thrust force, normal force, power factor and efficiency are predicted. By comparing with a single-sided PMLSM with the same specifications, it is proved that this double-sided PMLSM has lower thrust force ripple and higher thrust force density. Moreover, the net normal force of its mover is almost zero. Finally, the predicted back-EMF is verified by measurement.

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High-speed and high-precision tracking control of ultrahigh-acceleration moving-permanent-magnet linear synchronous motor

Precision Engineering ◽

10.1016/j.precisioneng.2014.11.005 ◽

2015 ◽

Vol 40 ◽

pp. 151-159 ◽

Cited By ~ 10

Author(s):

Tadashi Hama ◽

Kaiji Sato

Keyword(s):

Permanent Magnet ◽

High Precision ◽

Tracking Control ◽

High Speed ◽

Synchronous Motor ◽

Linear Synchronous Motor ◽

Precision Tracking ◽

Precision Tracking Control

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

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.416-417.317 ◽

2013 ◽

Vol 416-417 ◽

pp. 317-321 ◽

Cited By ~ 2

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.

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