Use of finite element method software packages for functional-constructive optimization of a permanent magnet synchronous motor with low speed

2014 ◽  
Author(s):  
Nicolae Diga ◽  
Constantin Ghita ◽  
Daniela Popescu ◽  
Silvia-Maria Diga ◽  
Maria Brojboiu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Low Speed ◽  
Software Packages ◽  
Element Method

Speed Regulation Analysis of a Magnetic Gear Integrated Permanent Magnet Synchronous Motor Using Finite Element Method Coupled with Vector Control

2014 ◽  
Vol 960-961 ◽  
pp. 1230-1236
Author(s):  
Xiao Qin Xu ◽  
Qing Qing Ding ◽  
Jing Hua Ji
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Vector Control ◽  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Speed Regulation ◽  
Torque Transmission ◽  
Magnetic Gear ◽  
Element Method

This paper describes the speed regulation of a magnetic gear integrated permanent magnet synchronous motor. The operating principle of the motor is discussed and the torque transmission is analyzed using finite element method; hence the motor model is established. The speed regulation is analyzed under vector control, and the simulated results verify the feasibility of speed regulation control.

scholarly journals Static Eccentricity Fault Recognition in Three-Phase Line Start Permanent Magnet Synchronous Motor Using Finite Element Method

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Mahdi Karami ◽  
Norman Mariun ◽  
Mohammad Rezazadeh Mehrjou ◽  
Mohd Zainal Abidin Ab Kadir ◽  
Norhisam Misron ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Current Signal ◽  
Stator Current ◽  
Three Phase ◽  
Static Eccentricity ◽  
Element Method

This paper is dedicated to investigating static eccentricity in a three-phase LSPMSM. The modeling of LSPMSM with static eccentricity between stator and rotor is developed using finite element method (FEM). The analytical expression for the permeance and flux components of nonuniform air-gap due to static eccentricity fault is discussed. Various indexes for static eccentricity detection using stator current signal of IM and permanent magnet synchronous motor (PMSM) are presented. Since LSPMSM is composed of a rotor which is a combination of these two motors, the ability of these features is evaluated for static eccentricity diagnosis in LSPMSM. The simulated stator current signal of LSPMSM in the presence of static eccentricity is analyzed in frequency domain using power spectral density (PSD). It is demonstrated that static eccentricity fault generates a series of low frequency harmonic components in the form of sidebands around the fundamental frequency. Moreover, the amplitudes of these components increase in proportion to the fault severity. According to the mentioned observations, an accurate frequency pattern is specified for static eccentricity detection in three-phase LSPMSM.

Research on Characteristics of Cogging Torque of Permanent Magnet Synchronous Motor Based on Finite Element Method

2013 ◽  
Vol 313-314 ◽  
pp. 37-40
Author(s):  
Shen Bo Yu ◽  
Shen Cao ◽  
Lei Li ◽  
Feng Yi Xiao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Air Gap ◽  
Cogging Torque ◽  
Calculation Results ◽  
Number Combination ◽  
Element Method

This paper presents a method of reducing cogging torque of Permanent Magnet Synchronous Motor (PMSM) based on Finite Element Method (FEM). Cogging torque can be reduced by pole and slot number combination and the length of air gap reasonably. An investigation into the cogging torque in 4 pole, 48 slot and 6 pole, 54 slot interior-magnet machines with overlapping winding is described. The calculation results show that cogging torque can be reduced by nearly 50% by pole and slot number combination reasonably. Then influence of different length of air gap on cogging torque is also researched. Cogging torque can be weaken by increasing the length of air gap effectively, the smoothness of the motor running can be improved.

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