Comprehensive Analysis of Magnet Defect Fault Monitoring Through Leakage Flux

Göktaş, Taner; Zafarani, Mohsen; Lee, Kun Wang; Akin, Bilal; Sculley, T.L.

doi:10.1109/tmag.2016.2617318

Cited by 89 publications

(42 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Finite-Element method (FEM) based modeling is the most accurate technique to realize the shorted turns and the inverse magnetic field induced by a short-circuit fault current [17,18]. Several techniques regarding ITSF modeling and analysis have been proposed [19][20][21][22][23]. However, its simulation time is longer due to the high computational burden of FEM.…”

Section: Inter-turn-short Fault (Itsf)mentioning

confidence: 99%

“…However, its simulation time is longer due to the high computational burden of FEM. Moreover, the reduced-order FEM-based machine models, such as linear PMSM, equivalent circuit, and field reconstruction method [19][20][21] based models are extremely effective to analyze the ITSF response and require relatively less time. However, all these methods require accurate implementation.…”

Section: Inter-turn-short Fault (Itsf)mentioning

confidence: 99%

“…Equivalent circuit-based fault models are more appropriate to study the machine dynamic response under ITSF. Relaying on some assumptions, several authors have proposed different mathematical models considering various operating conditions and different fault setups [19,22,23,[25][26][27][28]. In these methods, the motor parameters are measured analytically or by using the FEM-based simulation.…”

Section: Inter-turn-short Fault (Itsf)mentioning

confidence: 99%

See 2 more Smart Citations

A Comprehensive Review of Winding Short Circuit Fault and Irreversible Demagnetization Fault Detection in PM Type Machines

Ullah

Hur

2018

Energies

View full text Add to dashboard Cite

Contemporary research has shown impetus in the diagnostics of permanent magnet (PM) type machines. The manufacturers are now more interested in building diagnostics features in the control algorithms of machines to make them more salable and reliable. A compact structure, exclusive high-power density, high torque density, and efficiency make the PM machine an attractive option to use in industrial applications. The impact of a harsh operational environment most often leads to faults in PM machines. The diagnosis and nipping of such faults at an early stage have appeared as the prime concern of manufacturers and end users. This paper reviews the recent advances in fault diagnosis techniques of the two most frequently occurring faults, namely inter-turn short fault (ITSF) and irreversible demagnetization fault (IDF). ITSF is associated with a short circuit in stator winding turns in the same phase of the machine, while IDF is associated with the weakening strength of the PM in the rotor. A detailed literature review of different categories of fault indexes and their strengths and weaknesses is presented. The research trends in the fault diagnosis and the shortcomings of available literature are discussed. Moreover, potential research directions and techniques applicable for possible solutions are also extensively suggested.

show abstract

Section: Inter-turn-short Fault (Itsf)mentioning

confidence: 99%

Section: Inter-turn-short Fault (Itsf)mentioning

confidence: 99%

Section: Inter-turn-short Fault (Itsf)mentioning

confidence: 99%

See 1 more Smart Citation

A Comprehensive Review of Winding Short Circuit Fault and Irreversible Demagnetization Fault Detection in PM Type Machines

Ullah

Hur

2018

Energies

View full text Add to dashboard Cite

show abstract

“…Permanent magnet synchronous machines (PMSMs) are replacing induction motors in many applications due to their benefits on efficiency, power density, and ease of control. With the recent increase in the demand for PMSMs, there has been a lot of research activity on detection of PMSM drive system faults such as rotor eccentricity, PM demagnetization, and load alignment/unbalance-related failures [1]- [12]. There are three types of rotor eccentricity: static, dynamic, and mixed eccentricity (SE, DE, and ME).…”

Section: Introductionmentioning

confidence: 99%

“…SE and DE usually co-exist as ME, and its inherent level is within 10% of the air gap [13]. Irreversible local demagnetization in the PMs can be caused by a combination of thermal stress, demagnetizing magneto-motive force, mechanical stress (chipping or cracking), or disintegration due to corrosion/oxidation [1]- [4], [11]. Eccentricity (DE and ME) and local demagnetization cause unbalanced magnetic pull, which results in increased vibration, acoustic noise, bearing wear, and/or rotor deflection.…”

Section: Introductionmentioning

confidence: 99%

Online Detection of Rotor Eccentricity and Demagnetization Faults in PMSMs Based on Hall-Effect Field Sensor Measurements

Park

Fernández

Lee

et al. 2019

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

Rotor eccentricity and local demagnetization in permanent magnet synchronous motors (PMSMs) increases unbalanced magnetic pull and motor vibration resulting in accelerated aging of motor components. If the asymmetry in the rotor remains undetected, it can increase in severity, and increase the risk of stator-rotor contact, which causes forced outage of the motor and driven process. Detection of PMSM rotor asymmetry currently relies on off-line testing and on-line vibration/current spectrum analysis. However, they are inconvenient or cannot provide reliable detection of rotor faults for all PMSM designs. In this paper, the feasibility of using the signals from analog Halleffect field sensors for detecting eccentricity and local demagnetization is investigated. It is shown that Hall sensors present in machines for motion control can be used for directly measuring the variation in the flux inside the motor due to rotor magnetic asymmetry with minimal hardware modifications. 3dimensional (3D) finite element analysis (FEA) and experimental results performed on an interior PMSM (IPMSM) show that the proposed method can provide sensitive and reliable detection of dynamic/mixed eccentricity and local PM demagnetization.

show abstract

Measurement of Torque Using Leakage Flux for Induction Motors in Electric Vehicles by Non-invasive Method

Hooli

Vadde

Manickavasagam

et al. 2020

Lecture Notes in Electrical Engineering

View full text Add to dashboard Cite

Comprehensive Analysis of Magnet Defect Fault Monitoring Through Leakage Flux

Cited by 89 publications

References 16 publications

A Comprehensive Review of Winding Short Circuit Fault and Irreversible Demagnetization Fault Detection in PM Type Machines

A Comprehensive Review of Winding Short Circuit Fault and Irreversible Demagnetization Fault Detection in PM Type Machines

Online Detection of Rotor Eccentricity and Demagnetization Faults in PMSMs Based on Hall-Effect Field Sensor Measurements

Measurement of Torque Using Leakage Flux for Induction Motors in Electric Vehicles by Non-invasive Method

Contact Info

Product

Resources

About