Reliability of power supply systems under the influence of negative factors

Zatsepina, V. I.; Zatsepin, E. P.

doi:10.1109/icieam.2017.8076218

Cited by 18 publications

(5 citation statements)

References 10 publications

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“…Given that it is planned to use real-time wavelet analysis, the expansion to third level by Daubechies wavelets (db10) will be sufficient. Figure 3 shows the complete decomposition of the studied graph of the lighting network voltage [9].…”

Section: Practical Experiments and Explanationsmentioning

confidence: 99%

Analysis of power quality in presence of frequency distortions

et al. 2020

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Today, semiconductor elements are becoming more popular in power supply networks. Their presence in any objects of electrical equipment provides high performance with high operating efficiency. However, modern research shows the semiconductor element base negatively affects quality of electricity when they are used in parallel. In lowand medium-voltage networks, this is fraught with the appearance of frequency «noise», which negatively affects parameters equipment with presence of latter, as well their control system. To detect them, a special approach is necessary, since such harmonics can appear both from directly semiconductor elements and from operating mode of equipment where element base is applied. The purpose of this article identifies higher harmonic distortions generated by objects containing semiconductor elements.

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Section: Practical Experiments and Explanationsmentioning

confidence: 99%

Analysis of power quality in presence of frequency distortions

et al. 2020

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“…It can be seen that after a time of 0.12 s., it is already a permissible voltage on bus. In this scheme, controlled current sources performing sources of alternating load, where signal is formed by Uniform Random Number block, and with this in mind, model affects only metal melting process [16].…”

Section: Theoretical Justification and Conduct Of Experimentsmentioning

confidence: 99%

Ensuring efficient operation of electromechanical systems with frequency regulation with periodic voltage sags

Biały¹,

Sovin

Zatsepina

et al. 2019

E3S Web Conf.

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The article reflects influence of high-power electricity consumers on control elements of frequency control of electric drive. Solution of problem of eliminating influence of voltage dips on electromechanical systems by means of a modern method of reactive power compensation is presented. Graphs of power, current, voltage versus time are presented, graphs of voltage curve are analyzed in detail with proposal of method of its normalization.

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“…It should be noted that the failure of the switching device or the failure of the output electromechanical relay can often occur due to the simple loss of the operating current or insufficient voltage to operate. Accordingly, to improve the reliability of the operation of electromechanical devices, it is necessary to provide the redundancy of their power supply [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Improving the reliability of operation of electromechanical devices by means of ionistor-battery backup

Biały¹,

Stepanova

Zatsepina

et al. 2019

E3S Web Conf.

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This article is devoted to the problem of improving the operation reliability of electromechanical devices and devices at electric power industry facilities. Particular attention is paid to the fact that in the Russian power system electromechanical devices and devices designed for a voltage class of 110 kV and higher are still the majority compared to microprocessor and microelectronic devices. Given their long service life and the inability to promptly replace all devices at once, improving the reliability of their operation is highly relevant. A schematic solution to the problem is developed. The scientific novelty of the proposed solution is of the fact that the redundant power supply circuit with operating current of electromechanical devices offers a consolidated use of innovative electric power storage devices, namely ionistors and classic rechargeable batteries combined according to a special circuit. This solution maximizes the operation reliability of both electromechanical devices and devices themselves, as well as their automatic control.

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Reliability of power supply systems under the influence of negative factors

Cited by 18 publications

References 10 publications

Analysis of power quality in presence of frequency distortions

Analysis of power quality in presence of frequency distortions

Ensuring efficient operation of electromechanical systems with frequency regulation with periodic voltage sags

Improving the reliability of operation of electromechanical devices by means of ionistor-battery backup

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