Static eccentricity fault diagnosis using the signatures analysis of stator current and air gap magnetic flux by finite element method in saturated induction motors

2013 ◽  
Vol 4 (2) ◽  
pp. 118-128 ◽  
Author(s):  
N. Halem ◽  
S. E. Zouzou ◽  
K. Srairi ◽  
S. Guedidi ◽  
F. A. Abbood
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Fault Diagnosis ◽  
Magnetic Flux ◽  
Induction Motors ◽  
Air Gap ◽  
Stator Current ◽  
Static Eccentricity ◽  
Element Method

Induction Motors Fault Diagnosis Using Finite Element Method: A Review

2020 ◽  
Vol 56 (2) ◽  
pp. 1205-1217 ◽  
Author(s):  
Xiaodong Liang ◽  
Mohammad Zawad Ali ◽  
Huaguang Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Fault Diagnosis ◽  
Induction Motors ◽  
Element Method

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.

scholarly journals A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element Analysis

2021 ◽  
Vol 11 (21) ◽  
pp. 10334
Author(s):  
Wen-Ching Chang ◽  
Cheng-Chien Kuo
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Magnetic Flux ◽  
Flux Density ◽  
Power Transformer ◽  
Core Loss ◽  
Power Transformers ◽  
Magnetic Flux Density ◽  
External Excitation ◽  
Element Method

Power transformers play an indispensable component in AC transmission systems. If the operating condition of a power transformer can be accurately predicted before the equipment is operated, it will help transformer manufacturers to design optimized power transformers. In the optimal design of the power transformer, the design value of the magnetic flux density in the core is important, and it affects the efficiency, cost, and life cycle. Therefore, this paper uses the software of ANSYS Maxwell to solve the instantaneous magnetic flux density distribution, core loss distribution, and total iron loss of the iron core based on the finite element method in the time domain. . In addition, a new external excitation equation is proposed. The new external excitation equation can improve the accuracy of the simulation results and reduce the simulation time. Finally, the three-phase five-limb transformer is developed, and actually measures the local magnetic flux density and total core loss to verify the feasibility of the proposed finite element method of model and simulation parameters.

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