A Novel Approach of Thrust Ripple Minimization by Combinational Iron-Cored Primary in Permanent Magnet Linear Synchronous Motor

2012 ◽  
Vol 190-191 ◽  
pp. 638-641 ◽  
Author(s):  
Neng Xi ◽  
Jia Jun Yang ◽  
Wen Wei Liu ◽  
Jing Fang Shen ◽  
Yuan Xiong Cheng
Keyword(s):  
Finite Element Method ◽  
Permanent Magnet ◽  
Synchronous Motor ◽  
Direct Effects ◽  
The Finite Element Method ◽  
Theoretic Analysis ◽  
Linear Synchronous Motor ◽  
Novel Approach ◽  
Numeric Simulation ◽  
Basic Characteristics

The paper presents a technique of combinational iron-cored primary for thrust ripple-free permanent magnet linear synchronous motor (PMLSM). Due to multiple end sides of primary iron-cores constructed, the low order harmonics of thrust ripple could be directly eliminated. At the same time, each phase of armature windings forms a circulating sequence at side edge, which enables the parameters of the armature windings to be symmetric and constant. Therefore, electromagnetic ripple caused by side effect will be directly removed. The theoretical analysis conducted reveals the basic characteristics of the proposed approach. Numeric simulation of the finite-element method and harmonic analysis verify the correctness of theoretic analysis and direct effects of the approach on eliminating thrust ripple.

scholarly journals MINIMIZING THE DETENT FORCE IN PERMANENT MAGNET LINEAR SYNCHRONOUS MOTOR FOR DRIVING OF 2D LASER MARKING TABLE

2017 ◽  
Vol 3 ◽  
pp. 174
Author(s):  
Lyubomir Lazov ◽  
Peter Uzunov
Keyword(s):  
Permanent Magnet ◽  
Magnetic Circuit ◽  
Substantial Reduction ◽  
Synchronous Motor ◽  
Linear Motor ◽  
The Finite Element Method ◽  
Movable Part ◽  
Laser Marking ◽  
Detent Force ◽  
Linear Synchronous Motor

In this paper the research results for reducing the detent force in one innovative permanent magnet linear synchronous motor for 2D laser marking system was published. There two methods are used. The first of these methods features the usage of two additional end teeth with chamfers in the magnetic circuit of the movable part. In the second method, the teeth of the ferromagnetic core are with different lengths. As a result of the change of the air gap permeance in both cases substantial reduction of detent force is achieved, in multiples at times. The results obtained are based on modeling and analyzing the linear motor magnetic field by the Finite Element Method (FEM). Provided experimental research of the linear motor prototype proves the correctness of the simulations results.

scholarly journals MINIMIZING THE DETENT FORCE IN PERMANENT MAGNET LINEAR SYNCHRONOUS MOTOR FOR DRIVING OF 2D LASER MARKING TABLE

2017 ◽  
Vol 3 ◽  
pp. 325
Author(s):  
Lyubomir Lazov ◽  
Peter Uzunov
Keyword(s):  
Permanent Magnet ◽  
Magnetic Circuit ◽  
Substantial Reduction ◽  
Synchronous Motor ◽  
Linear Motor ◽  
The Finite Element Method ◽  
Movable Part ◽  
Laser Marking ◽  
Detent Force ◽  
Linear Synchronous Motor

In this paper the research results for reducing the detent force in one innovative permanent magnet linear synchronous motor for 2D laser marking system was published. There two methods are used. The first of these methods features the usage of two additional end teeth with chamfers in the magnetic circuit of the movable part. In the second method, the teeth of the ferromagnetic core are with different lengths. As a result of the change of the air gap permeance in both cases substantial reduction of detent force is achieved, in multiples at times. The results obtained are based on modeling and analyzing the linear motor magnetic field by the Finite Element Method (FEM). Provided experimental research of the linear motor prototype proves the correctness of the simulations results.

Analysis and Optimization of a Linear Synchronous Motor with Novel Halbach Magnet Array

2013 ◽  
Vol 416-417 ◽  
pp. 104-108
Author(s):  
Bao Quan Kou ◽  
Lu Zhang ◽  
Bin Chao Zhao ◽  
Chao Ning Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Permanent Magnet ◽  
Synchronous Motor ◽  
Linear Motor ◽  
The Novel ◽  
Linear Synchronous Motor ◽  
Halbach Array ◽  
Element Method

This paper concerns the analysis and optimization of a permanent magnet linear synchronous motor. The motor consists of moving ironless coils and a stator with novel double-side Halbach array. Some characteristics of the linear motor were investigated. The dimensions of the novel Halbach magnet array were optimized. The optimization was verified by finite element method.

scholarly journals Electromagnetic Design of Toroidal Permanent Magnet Linear Synchronous Motor

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Yinhao Mao ◽  
Zhaolong Sun ◽  
Weichang Zhou ◽  
Zhexin Zhuang ◽  
Hanning Qian
Keyword(s):  
Permanent Magnet ◽  
Synchronous Motor ◽  
Electromagnetic Design ◽  
Linear Synchronous Motor

Research on the End Effect Detent Force Reduction of Permanent Magnet Linear Synchronous Motor with Auxiliary Poles One-Piece Structure

2013 ◽  
Vol 416-417 ◽  
pp. 27-32
Author(s):  
He Zhang ◽  
Bao Quan Kou ◽  
Shou Lun Guo ◽  
Hai Lin Zhang ◽  
Yin Xi Jin ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Synchronous Motor ◽  
Linear Motor ◽  
End Effect ◽  
Detent Force ◽  
Linear Synchronous Motor ◽  
Force Reduction ◽  
The One

In order to minimize the detent force of permanent magnet linear synchronous motor (PMLSM) caused by end effect, a novel auxiliary poles one-piece structure is proposed. Two auxiliary poles are extended directly from two ends of the armature core. And magnetic isolation bridges are set between auxiliary pole and armature core. Compared with the conventional discrete auxiliary poles, the one-piece structure will reduce the manufacture difficulty of PMLSM with auxiliary poles and improve the reliability of linear motor.

Force Ripple and Magnetic Unbalance Reduction Design for Doubly Salient Permanent Magnet Linear Synchronous Motor

2011 ◽  
Vol 47 (10) ◽  
pp. 4207-4210 ◽  
Author(s):  
Shi-Uk Chung ◽  
Ji-Won Kim ◽  
Byung-Chul Woo ◽  
Do-Kwan Hong ◽  
Ji-Young Lee ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Synchronous Motor ◽  
Linear Synchronous Motor ◽  
Doubly Salient ◽  
Force Ripple
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