نتایج جستجو برای: stator fault

تعداد نتایج: 67833  

2008
Yountae Kim Hyeon Bae Sungshin Kim George Vachtsevanos

This paper presents a diagnosis technique to detect and identify faults in AC servo motors. The first phase of stator currents among three phases is digitized and stored in the time domain. Wavelet transform is employed to convert the signals onto time-frequency domain because the time domain based approach is not suitable for detecting state features of the current signals. Pre-processing algo...

Eccentricity fault is one the most common fault types of disk-type permanent magnet machines, which could lead to devastating effects. Unfortunately, most of the previous works have studied this fault and its detection techniques for slotted structure with common winding. Therefore, in this paper, the effects of eccentricity faults on the performance of single-sided slotted, single-sided slotle...

2016
Valeriu Vrabie Pierre Granjon Claire-Sophie Maroni Benoît Leprettre

This paper deals with the application of the Spectral Kurtosis (SK) to bearing fault detection in asynchronous machines. This one-dimensional spectral measure allows to study the nature of the harmonic components of the stator current of an induction motor running at a constant rotation speed. It provides additional information with respect to second order quantities given by the Power Spectrum...

2016
Neelam Turk

In this paper, the effects of induction motor rotor faults on the current and voltage of motor are studied through motor current signature analysis. This technique utilizes the results of spectral analysis of the stator current. The distortion of current waveform is generally very minute due to fault of induction motor so it is very difficult. In this paper, power spectrum of motor is taken to ...

Journal: :journal of advances in computer research 2015
mehran taghipour-gorjikolaie seyyed mohammad razavi mohammad ali shamsinejad

extension of inter-turn fault in windings of pmsm can damage all parts of electrical systems, and in some cases in sensitive applications may lead to irreparable events. identification of such small faults at incipient steps can be so helpful to protect entire part of electrical system. in this paper, intelligent protection system is designed which is made by two major parts. in the first part ...

Journal: :Facta universitatis. Series electronics and energetics 2021

This article proposed a detection scheme for three-phase Line start permanent magnet synchronous motor (LSPMSM) under different levels of static eccentricity fault. Finite element method is used to simulate the healthy and faulty LSPMSM with percentages eccentricity. An accurate laboratory test experiment performed evaluate index. Effects loading condition on are also investigated. The fault re...

2014
Liang Xu Jinghua Ji Guohai Liu Yi Du Hu Liu

This paper proposes a new linear fault-tolerant permanent-magnet (PM) vernier (LFTPMV) machine, which can offer high thrust by using the magnetic gear effect. Both PMs and windings of the proposed machine are on short mover, while the long stator is only manufactured from iron. Hence, the proposed machine is very suitable for long stroke system applications. The key of this machine is that the ...

Journal: :Energies 2021

Stator winding faults are one of the most common permanent magnet synchronous motors (PMSMs), and searching for methods to efficiently detect this type fault at an early stage damage is still ongoing, important topic. This paper deals with selected detecting stator (short-circuits) a motor, which based on analysis phase current signal. These were experimentally verified their effectiveness was ...

2014
Kai-Hui Zhao Tefang Chen Chang-Fan Zhang Jing He Gang Huang

To prevent irreversible demagnetization of a permanent magnet (PM) for interior permanent magnet synchronous motors (IPMSMs) by flux-weakening control, a robust PM flux-linkage nonsingular fast terminal-sliding-mode observer (NFTSMO) is proposed to detect demagnetization faults. First, the IPMSM mathematical model of demagnetization is presented. Second, the construction of the NFTSMO to estima...

2016
Taner Goktas Muslum Arkan

This paper presents separation harmonics to discriminate rotor failure from low frequency load torque oscillations in three phase induction motors. The most common method for detecting broken rotor bar faults is to analyze the corresponding sidebands through motor current signature analysis (MCSA). If a motor is subjected to load fluctuation, then the oscillation related sidebands exhibit simil...

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