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A Brief Overview of Reliability Approaches in the Restructured Power System
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Masoud Shahgholian   , Mohammadreza Vasili * , Ghazanfar Shahgholian |
| Department of Electrical Engineering, Lenj.C., Islamic Azad University, Isfahan, Iran |
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Abstract: (26 Views) |
Power system reliability refers to the ability of a power grid to continuously deliver electricity to meet consumer demand without interruption. It includes adequacy (having sufficient generation and transmission capacity) and security (withstanding unexpected disruptions). Reliability is a critical factor in power system planning and operation and is often assessed using various indicators to quantify the frequency, duration, and scale of outages. Restructured power systems, although aimed at reducing costs, can introduce complexities in maintaining reliability due to the separation of generation, transmission, and distribution functions. These systems often include independent power producers, market traders, and operators, alongside traditional power companies. Assessing reliability in this context requires considering the interactions between these different entities and developing new methods to ensure a stable and secure supply of electricity. This article provides a brief overview of the reliability approach in a restructured power system. Creating competition and potentially reducing electricity costs for consumers are among the main goals of restructuring. In a restructured power system, reliability is not solely the responsibility of a single entity. Each component including generation, transmission and distribution has a role in ensuring the overall reliability of the system. Various metrics are considered to quantify the impact of power outages. Studies have focused on developing control strategies to ensure that the system can withstand disturbances and maintain stability. |
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| Keywords: distribution system, market operation, reliability, restructured system, transmission system. |
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Full-Text [PDF 666 kb]
(13 Downloads)
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Type of Study: Review article |
Subject:
Special
Received: 2025/05/15 | Accepted: 2025/07/23 | Published: 2025/09/1
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