Analysis of assessment of the technical condition of equipment of generating systems

Sultanov, M. M.; Baydakova, N. V.; Afonin, A. V.

doi:10.1088/1757-899x/1035/1/012004

Cited by 2 publications

(1 citation statement)

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“…However, only relying on the harmonic components of current and voltage, the reliability of the evaluation results is not high. Sultanov et al [10] introduced the evaluation method of the technical condition of the existing power generation system equipment and considered the advantages of the maintenance and repair system in the actual situation. Morita et al [11] designed detection equipment for evaluating the lightning protection performance of the grounding system of railway substation, which can efectively measure the grounding resistance, high-frequency grounding impedance, and voltage diference of the grounding system.…”

Section: Introductionmentioning

confidence: 99%

Panoramic Assessment Method of Substation Equipment Health Status Based on Multisource Monitoring and Deep Convolution Neural Network under Edge Computing Architecture

Zhang

et al. 2023

Journal of Electrical and Computer Engineering

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In view of the low efficiency of the traditional manual evaluation method of substation equipment status under the background of complex environment, a panoramic evaluation method of substation equipment health status based on multisource monitoring and deep convolution neural network under edge computing architecture is proposed. Firstly, a panoramic sensing system for substation equipment is built based on edge computing, and an edge computing server is deployed in the substation to process the massive data obtained from multisource monitoring nearby. Then, the improved YOLOv4 network is used to detect the equipment state in the substation, in which the Squeeze-and-Excitation attention module and deep separable convolution are used to optimize the YOLOv4 network. Finally, based on the status image of substation equipment, the health status of equipment is evaluated on the panoramic platform of substation combined with the characteristics of multisource data, and four states are divided according to the evaluation criteria. Based on the selected dataset, the experimental analysis of the proposed method is carried out. The results show that the index values of accuracy, recall, and mean precision are 91.53%, 93.07%, and 92.28%, respectively. The overall performance is better than other methods and has certain application value.

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Section: Introductionmentioning

confidence: 99%

Panoramic Assessment Method of Substation Equipment Health Status Based on Multisource Monitoring and Deep Convolution Neural Network under Edge Computing Architecture

Zhang

et al. 2023

Journal of Electrical and Computer Engineering

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Technical solutions for selecting an option for replacing overaged boiler steam drums

Okhlopkov

Popov²,

Moiseev

et al. 2023

jour

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This work investigates possible options for replacing the main separator of steam power boilers to ensure their maximal service life. Separators of drum-type boilers are reviewed in terms of their advantages and disadvantages. An analysis of two steels – WB36 and 16GNMA – is carried out by comparing their performance characteristics, chemical composition, and welding procedures. Possible technical solutions for replacing overaged drum boilers are analyzed from the technical and economic perspectives. Three options were selected for replacing the separator: a similar drum made of imported grade WB36 steel; an alternative option with a small drum and a bank of off-mounted cyclones; a drumless option based on a multi-stage evaporation cycle and a bank of cyclones. The materials currently used in separators, i.e., 16GNM and 16GNMA, are compared with imported WB36 steel. It was found that each option had its own advantages and disadvantages, which should be analyzed according to the following parameters: weight and dimensions; assumed need in lifting equipment; hydraulic losses; assumed changes in automatic boiler equipment; relative costs associated with designing, analysis, and risk management. Therefore, the presented recommendations for selecting a drum replacement option are essential for extending the service life and ensuring the reliable and safe operation of boiler equipment.

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Analysis of assessment of the technical condition of equipment of generating systems

Abstract: This work presents the results of the analysis of existing methods for assessing the technical condition of generating systems’ equipment, the advantages of maintenance and repair systems by the actual condition are considered.

Cited by 2 publications

References 0 publications

Panoramic Assessment Method of Substation Equipment Health Status Based on Multisource Monitoring and Deep Convolution Neural Network under Edge Computing Architecture

Panoramic Assessment Method of Substation Equipment Health Status Based on Multisource Monitoring and Deep Convolution Neural Network under Edge Computing Architecture

Technical solutions for selecting an option for replacing overaged boiler steam drums

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