Mathematical model of the processes of restoration of power equipment in power systems by criterion of the index of technical condition

Kuryanov, V N; Sultanov, M. M.; Kuryanova, Elena V.; Skopova, E M

doi:10.1088/1742-6596/1683/4/042041

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, due to its complex operating conditions, uneven equipment level, and complex network structure, it is impossible to form a reliable structure similar to power generation and transmission system [1,2]. Research shows that more than 85% of power failures occur on the distribution network side [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

State Evaluation Method of Distribution Equipment Based on Health Index in Big Data Environment

Xue¹,

Li²,

Wang³

et al. 2022

Mathematical Problems in Engineering

View full text Add to dashboard Cite

Aiming at the problems of time-consuming and low accuracy in the existing state evaluation methods of distribution equipment, a state evaluation method of distribution equipment based on health index in big data environment is proposed. Firstly, in order to optimize the time-consuming of big data analysis on large-scale and distributed clusters, a distribution equipment condition monitoring data platform in big data environment is designed, and a hive based relational online analysis method (ROLAP) is proposed. Secondly, the health index (HI) is introduced as the evaluation index to evaluate the health status of distribution equipment. According to the different influence degree of different fault factors on the equipment status, a comprehensive multifactor fault rate correction model is obtained, and the method based on success flow is used to solve the model to improve the accuracy of state evaluation. Finally, experiments show that when the data volume of distribution equipment is 60 GB, the time of the proposed method is only 30.0 s, which is far lower than 73.6 s and 82.5 s of the comparison method. The evaluation accuracy of the proposed method is 95.1%, while the evaluation accuracy of the comparison method is only 82.4% and 73.1%, respectively. Therefore, the proposed method can effectively improve the efficiency of distribution equipment condition evaluation.

show abstract

Section: Introductionmentioning

confidence: 99%

State Evaluation Method of Distribution Equipment Based on Health Index in Big Data Environment

Xue¹,

Li²,

Wang³

et al. 2022

Mathematical Problems in Engineering

View full text Add to dashboard Cite

show abstract

“…The advantages of such a system are autonomy from electric and heat supply systems, higher efficiency than traditional power supply systems, obtaining small income from the sale of electricity to the grid and reducing emissions of pollutants. Microgrid can be used not only for individual buildings, but also for small areas, depending on its power [5].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Equipment Capacity of Power Park in Volzhskiy Branch of MPEI

et al. 2021

View full text Add to dashboard Cite

The article describes the development of an innovative microgrid landfill on the territory of the branch of NRU MPEI in Volzhskiy. The power park is considered as a microgrid with traditional and renewable energy sources. The aim of this facility is to provide heat and electricity to the institute's building and a practical study of the operation and maintenance of power equipment. The types of cogeneration plants are defined. Possible variants of the equipment layout with the determination of the power factor of each unit are considered. Trigeneration is proposed for the profitable use of the thermal steam of the units, which will contribute to saving electricity for cooling the institute in the summer. By analogy with the mathematical theory of Sharpe-Markowitz and J. R. R. Tolkien a graph of the dependence of the cost of 1 kWh and the risk assessment of energy supply in % of all equipment layout options of each variant is constructed. Based on the obtained data, a conclusion is formed about the optimization of power equipment for the Power Park.

show abstract

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

Okhlopkov

Popov²,

Moiseev

et al. 2023

jour

View full text Add to dashboard Cite

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.

show abstract

Mathematical model of the processes of restoration of power equipment in power systems by criterion of the index of technical condition

Cited by 4 publications

References 0 publications

State Evaluation Method of Distribution Equipment Based on Health Index in Big Data Environment

State Evaluation Method of Distribution Equipment Based on Health Index in Big Data Environment

Optimization of Equipment Capacity of Power Park in Volzhskiy Branch of MPEI

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

Contact Info

Product

Resources

About