Ismayilova G., Huseynzada J.
ANALYSIS OF RELIABILITY ISSUES OF ELECTRICAL SYSTEMS *
Аннотация:
this article presents a comprehensive approach to reliability analysis and synthesis in electric power systems, focusing on the causes and consequences of failures such as power shortages, automatic shutdowns, and voltage disturbances. Key components of system reliability—including power supply and electric grid supply—are analyzed with respect to optimal reserve allocation and the capacity of system-forming networks. The report outlines methodological approaches for calculating reliability using balance, structural, and regime models, and introduces mathematical models for failure and reliability processes.
Ключевые слова:
reliability indicators, refusal, insulation wear, intensity of rejections
DOI 10.24412/2712-8849-2025-586-1526-1531
Introduction. When managing the development and operation of electric power systems, it is necessary to solve problems of reliability analysis and synthesis. To do this, it is necessary to take into account failures that lead to disruptions in power supply and undersupply of electricity to consumers and are caused by multiple reasons, such as power shortages or automatic shutdowns, interruptions or deep voltage drops during accidents. Approach method. An analysis of the causes of failures allows us to identify the components of reliability that ensure the satisfaction of consumers demand for electricity:energy supply,power supply,electric grid supply.In this context, we focus on the latter two. During system development, it is necessary to determine the optimal reserve capacities within the unified energy system and their distribution across subsystems. For the electric grid supply, reliability studies are required to select the appropriate capacities of system-forming networks, including intersystem connections and distribution networks supplying various load centers—such as agricultural, urban, and industrial power systems.To address these issues, different methods of reliability analysis are applied:Balance reliability methods – Estimate the demand for electric power and the extent to which it is met.Structural reliability methods – Consider the probabilities of various operational states of system components.Regime reliability methods – Assess the transmission capacity of electric networks.Let us consider the last two components: when managing development, the optimal amount of reserves in the unified energy system and their distribution across the unified energy systems must be determined. Reliability studies for the third component must be carried out to select the capacity of system-forming networks, including intersystem connections of distribution networks supplying load nodes and power supply systems of agricultural, urban networks, and industrial enterprises (1(.To solve these problems, it is necessary to use methods of calculating reliability - balance, structural, regime. Methods of balance reliability allow to estimate the demand for electric power and the degree of its satisfaction, methods of regime - the transmission capacity of electric networks. Methods of structural reliability allow to consider the probabilities of various states of groups of elements of electric power systems.Calculating the reliability of an object means determining the indicators or characteristics of reliability based on known indicators or characteristics of its elements in accordance with the logic of their interaction.A mathematical description of the failure process is called a failure model. A mathematical description of failure processes taking into account recovery and prevention is called a reliability model. These models are used to calculate reliability indicators.
Номер журнала Вестник науки №5 (86) том 4
Ссылка для цитирования:
Ismayilova G., Huseynzada J. ANALYSIS OF RELIABILITY ISSUES OF ELECTRICAL SYSTEMS // Вестник науки №5 (86) том 4. С. 1526 - 1531. 2025 г. ISSN 2712-8849 // Электронный ресурс: https://www.вестник-науки.рф/article/23461 (дата обращения: 08.07.2025 г.)
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