Operating Principle and Cogging Normal Force Analysis of a Novel Double-Sided Permanent Magnet Linear Synchronous Motor

2021 ◽  
Author(s):  
Xinduo Liu ◽  
Xiaodong Wang ◽  
Wenliang Zhao ◽  
Xiuhe Wang ◽  
Fujie Wang
Keyword(s):  
Permanent Magnet ◽  
Normal Force ◽  
Synchronous Motor ◽  
Operating Principle ◽  
Force Analysis ◽  
Linear Synchronous Motor

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

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.

<i>Analysis of normal force of permanent magnet linear synchronous motor for machine tools</i>

2018 ◽  
Author(s):  
yiyong yin ◽  
jianzhou jin ◽  
yuefeng Du ◽  
wenqiang Zhang ◽  
binhui liu
Keyword(s):  
Permanent Magnet ◽  
Machine Tools ◽  
Normal Force ◽  
Synchronous Motor ◽  
Linear Synchronous Motor

Analysis and Calculation of the Normal Force Fluctuations of Permanent Magnet Linear Synchronous Motor

2012 ◽  
Vol 588-589 ◽  
pp. 513-517
Author(s):  
Li Shen ◽  
Jian Rong Ning ◽  
Jia Kuan Xia ◽  
Jing Quan Cao
Keyword(s):  
Permanent Magnet ◽  
Electromagnetic Force ◽  
Normal Force ◽  
Synchronous Motor ◽  
Cnc Machine Tools ◽  
Feeding System ◽  
Magnetomotive Force ◽  
Analytical Expression ◽  
Force Fluctuation ◽  
Linear Synchronous Motor

Permanent Magnet linear synchronous motor (PMLSM) exist the problem of normal force fluctuation, especially in the servo feeding system of high-precision CNC machine tools. The normal force fluctuation can cause the feeding table in vibration and produce resonance with other moving components of the servo feeding system. It is produced by normal electromagnetic force wave acting on iron cores of PMLSM. In this paper, the analytical expression of normal electromagnetic force wave of single-side PMLSM is deduced with the method of MMF (magnetomotive force) magnetic permeance. And based on this, analyze composition and classification of the force wave component; the further study of the influences to the force wave order and amplitude when the coefficients of the electric machine are changed is done. Then, base on a PMLSM with 6 poles and 36 slots, the results of analytic calculation are accordant with the FEM simulation ones. These results prove the analytical expression is correct and accurate.

Skew and End-Teeth Optimization in Reduce Permanent-Magnet Linear Synchronous Motor Normal Force Fluctuation

2011 ◽  
Vol 383-390 ◽  
pp. 4853-4859 ◽  
Author(s):  
Jia Kuan Xia ◽  
Wei Yang Li ◽  
Li Shen
Keyword(s):  
Permanent Magnet ◽  
System Analysis ◽  
Normal Force ◽  
Synchronous Motor ◽  
Cnc Machine Tools ◽  
Feeding System ◽  
Cnc Machine ◽  
Force Fluctuation ◽  
Detent Force ◽  
Linear Synchronous Motor

Permanent-magnet linear synchronous motor (PMLS-M) exist the problem of normal force fluctuation, especially in the servo feeding system of high-precision CNC machine tools, the normal force fluctuation can cause the feeding table in vibration and produce resonance with other moving components of the servo feeding system .Analysis shows that detent force fluctuation is the predominant factor. Adopt the methods of end-teeth optimization combine with skew or V-skew can effectively reduce the detent force fluctuation. By using the Fourier regression analysis and limited enumeration method to calculate the optimal parameters, and applying the layered finite element analysis for simulation. The results of simulation prove that with the precondition of the thrust force loss slightly, adopt those optimization methods can reduce the normal force fluctuation significantly.

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