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Research on reliability of flexible DC transmission system based on fuzzy comprehensive evaluation

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Evaluating the reliability of the flexible HVDC transmission system can effectively summarize the operation status of the flexible HVDC transmission system during the cycle， and provide a basis for the operation control and optimal maintenance of the sending and receiving end systems。 In this paper， a reliability evaluation method of flexible HVDC transmission system based on fuzzy comprehensive evaluation is studied。 Firstly， the structural characteristics of flexible HVDC transmission system are analyzed， the factors affecting the reliability of flexible HVDC transmission system are studied， and the reliability evaluation index of flexible HVDC transmission system is proposed。 Then， the Analytic Hierarchy Process (AHP) and the Criteria Importance Though Intercrieria Correlation (CRITIC) are used to determine the subjective and objective weights， and the comprehensive weights are combined to calculate the comprehensive weights， and the reliability of the flexible HVDC transmission system is quantitatively evaluated by the fuzzy comprehensive evaluation method。 Finally， the proposed method is verified by an example。 The results show that the method can effectively evaluate the reliability of the flexible HVDC transmission system， provide reference information and decision-making basis for optimizing the maintenance arrangement， and have certain guiding significance and reference value for improving the reliability of the flexible HVDC transmission system。

CorrelationPower transmission linesHVDC transmissionAnalytic hierarchy processMaintenance engineeringReliabilityIndexes

Zhaozhao Peng、Menghu Li、Li Fan

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Hubei Electric Power Planning Design & Research Institute Co., Ltd., Wuhan, China

International Conference on Intelligent Power and Systems

Shenzhen(CN)

2023 3rd International Conference on Intelligent Power and Systems

630-637

2023

10.1109/ICIPS59254.2023.10404496