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Evaluation of the importance factors of the power plants within the power system reliability evaluation
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Faculty of Electrical Engineering University of Ljubljana Tržaška cesta 25, 1000 Ljubljana, Slovenia
Publication date: 2019-12-31
Eksploatacja i Niezawodność – Maintenance and Reliability 2019;21(4):631-637
The objective of the paper is to develop the reliability importance factors which could identify the plants, which more or less contribute to the increased or decreased power system reliability. One group of importance factors could identify the plants, which with their increased availability would notably increase the power system reliability The other group of the importance factors could identify the plants, which with their reduced availability would notably reduce the power system reliability. The importance factors have been developed. An example of regional power system was considered for the case study. The results identify the power plants which are more susceptible to increase of the loss of load expectation and thus to decreasing of the power system reliability, if their availability is reduced. Similarly, the results identify the power plants which are more susceptible to decreasing of the loss of load expectation and thus to increase of the power system reliability, if their availability is increased. The lists of important factors can serve as a standpoint for inclusion of the power system reliability role within the power system to the planning activities. The lists of importance factors can represent the standpoint for the power system operator to reward the improvement of the power plant availability or to penalize the reduced power plant availability
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