The probability estimate of the defects of the asynchronous motors based on the complex method of diagnostics

Zhukovskiy, Y. L.; Korolev, Nikolay; Babanova, I.S.; Бойков, А. В.

doi:10.1088/1755-1315/87/3/032055

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…Article [29] provides the method to estimate the probability of asynchronous EM failure. It is based on the comprehensive diagnostic method of vibrational and electrical characteristics, taking into account the power supply network quality and operation conditions.…”

mentioning

confidence: 99%

System Approach to the Evaluation of the Traction Electric Motor Quality

Arhun¹,

Migal²,

Hnatov³

et al. 2018

EAI Endorsed Transactions on Energy Web

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The electric motor (EM) is one of the main components of any system. The EM quality is set at the design and manufacturing stages, and its technical condition is maintained during operation. Therefore, the development of methods for the EM quality determining at its all life cycle stages is urgent. In the paper, for the first time, we proposed the system approach to traction EM quality estimation on the vibration parameter basis. This approach differs in that the study of EM vibration is carried out in 1/3 octave spectrum of frequencies from 50 Hz to 10 kHz (dB), which allows revealing all existing faults or "weak places" of EM. This method is universal for all types of EM. It is based on the results of the largescale experiments using the system analysis and the objectives tree method and allows combining individual problem solutions to improve the quality of design, manufacture, and operation of EM into a single integrated system of quality assessment.

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mentioning

confidence: 99%

System Approach to the Evaluation of the Traction Electric Motor Quality

Arhun¹,

Migal²,

Hnatov³

et al. 2018

EAI Endorsed Transactions on Energy Web

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“…Determination of the probability for failure-free ED operation can be represented as the construction of Equation (1). It is based on the retrospective database with the requirements for the relative error, or for limit of the confidence period of prediction λ at p ≥ 95%-less than 5% [30]. P = F(t, ∆t, n, k, l, N i , P i (t), P(t − ∆t), .…”

Section: Methods For Assessing the Ed Technical Conditionmentioning

confidence: 99%

Efficiency Increase of Energy Systems in Oil and Gas Industry by Evaluation of Electric Drive Lifecycle

2021

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The efficiency issue of energy systems in the oil and gas industry is a crucial factor nowadays. Energy share in the production costs of oil and gas can reach 50%. Among the most important energy equipment are the electric drives of the pumps, compressors, auxiliary units, etc. The paper considered the lifecycle of the electric drives used at oil and gas fields and evaluated their efficiency parameters during periods of operational wear or malfunctioning. At the same time, the lifecycle of the energy equipment was seen as its technical state during operation. Based on the spectral analysis of the current using the finite Fourier transform (FFT), the main frequency components were identified that characterize the type and level of malfunction, taking into account defined efficiency indicators of the electric drive. A technique for assessing the technical state of an electric drive was proposed based on the normalized levels of the amplitudes of the frequency components. Predictive management of the electric drive was implemented in terms of correcting the control system when a malfunction occurs, providing the required efficiency indicators. Boundaries for the technical state of the electric drive were determined. Recommendations for further operation, terms of maintenance and repair or preventive management were presented.

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Asynchronous motor drive operability field with two-link structure of frequency converter

Zhukovskiy

Korolev

Filatova

2020

J. Phys.: Conf. Ser.

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The article presents an approach to determining the electric drive’s operability based on an asynchronous motor with a short-circuited rotor and a two-link frequency converter. Mathematical description of the frequency-controlled electric drive is performed, in particular, selection of criteria taking into account an electric and mechanical part. The harmonic current distortion coefficient as a component of the power coefficient is used for the determination of the energy criterion. The mechanical criterion is the coefficient of the electromagnetic moment pulsation, on the value of which the conjugated equipment depends. The operability field is represented as a function of three variables: (a) rotor speed, (b) current harmonic distortion coefficient, and (c) electromagnetic moment pulsation coefficient. The obtained surface makes it possible to determine the actual state of the electric drive and to estimate the reserve of operability, which allows reducing the operating costs in terms of repair and maintenance.

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The probability estimate of the defects of the asynchronous motors based on the complex method of diagnostics

Cited by 6 publications

References 7 publications

System Approach to the Evaluation of the Traction Electric Motor Quality

System Approach to the Evaluation of the Traction Electric Motor Quality

Efficiency Increase of Energy Systems in Oil and Gas Industry by Evaluation of Electric Drive Lifecycle

Asynchronous motor drive operability field with two-link structure of frequency converter

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