Detecting rotor faults in permanent magnet synchronous machines

Roux, W. le; Harley, R.G.; Habetler, T.G.

doi:10.1109/demped.2003.1234573

Cited by 45 publications

(39 citation statements)

References 8 publications

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“…These forces cause the fluctuation of air-gap length when the rotor turns. Since this fluctuation comes from the defective structure of a ball bearing, the abnormal harmonic frequencies of a ball bearing can be derived from the bearing model [6] and [7]. They are described as: Ibng = I.t; ± m * Ivl (2) where:…”

Section: B Bearing Damagementioning

confidence: 99%

Machine current signature analysis as a way for fault detection in permanent magnet motors in elevators

Royo

Segui

Pardina

et al. 2008

2008 18th International Conference on Electrical Machines

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This paper foeuses on the experimental investigation for incipient fault detection and fault detection methods suitably adapted for use in permanent-magnet motors for direct-drive elevator systems. The proposed system diagnoses permanentmagnet motors having two types of faults such as short circuit of stator windings and bearing fault. After processing current data the classical Fast Fourier Transform is applied to detect characteristics under the healthy and various faulted conditions with MCSA.

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Section: B Bearing Damagementioning

confidence: 99%

Machine current signature analysis as a way for fault detection in permanent magnet motors in elevators

Royo

Segui

Pardina

et al. 2008

2008 18th International Conference on Electrical Machines

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“…Demagnetization fault diagnosis based on signal transformation A PMSG excitation-loss fault can induce a particular stator current harmonic [98,99]. This harmonic component can be the basis for analyzing the stator current spectrum to judge whether a failure has occurred.…”

Section: Fault Diagnosis Of Rotors Of Pmsgsmentioning

confidence: 99%

Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Huang

Xiao

et al. 2017

Front. Mech. Eng.

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Electric power conversion system (EPCS), which consists of a generator and power converter, is one of the most important subsystems in a direct-drive wind turbine (DD-WT). However, this component accounts for the most failures (approximately 60% of the total number) in the entire DD-WT system according to statistical data. To improve the reliability of EPCSs and reduce the operation and maintenance cost of DD-WTs, numerous researchers have studied condition monitoring (CM) and fault diagnostics (FD). Numerous CM and FD techniques, which have respective advantages and disadvantages, have emerged. This paper provides an overview of the CM, FD, and operation control of EPCSs in DD-WTs under faults. After introducing the functional principle and structure of EPCS, this survey discusses the common failures in wind generators and power converters; briefly reviewed CM and FD methods and operation control of these generators and power converters under faults; and discussed the grid voltage faults related to EPCSs in DD-WTs. These theories and their related technical concepts are systematically discussed. Finally, predicted development trends are presented. The paper provides a valuable reference for developing service quality evaluation methods and fault operation control systems to achieve high-performance and high-intelligence DD-WTs.

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“…The presence of strange and foreign contaminants can cause a decline in heat dissipation [8]. It is therefore, of utmost importance to keep the motors dirt free and dry, in particular, when the motors run in a hostile environment.…”

Section: Introductionmentioning

confidence: 99%

Stator Winding Fault Diagnosis of Induction Motor Using FFT

2017

IJAERD

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Detecting rotor faults in permanent magnet synchronous machines

Cited by 45 publications

References 8 publications

Machine current signature analysis as a way for fault detection in permanent magnet motors in elevators

Machine current signature analysis as a way for fault detection in permanent magnet motors in elevators

Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Stator Winding Fault Diagnosis of Induction Motor Using FFT

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