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Bai Xueyan,Fan Yanfang,Hou Junjie,Liu Yujia 대한전기학회 2024 Journal of Electrical Engineering & Technology Vol.19 No.3
With the continuous increase in the proportion of renewable energy access, reliability confdence capacity, as an important decision-making reference for measuring the contribution of power sources to the power system, has received widespread attention in power system planning and operation. It is of great signifcance to scientifcally and reasonably evaluate the reliability confdence capacity of renewable energy. This paper proposes a comprehensive evaluation method for renewable energy reliability confdence capacity based on improved Decision-Making Trial and Evaluation Laboratory-Analytic Hierarchy Process-Entropy Weight Method. Firstly, construct a reliability confdence capacity assessment model for renewable energy. Secondly, based on the comprehensive infuence weight calculated by improving the DEMATEL method, the AHPEWM subjective and objective weighting method based on game theory is used to establish the renewable energy confdence capacity index system and calculate the weight. Finally, simulation verifcation is conducted using an actual power grid in the northwest region of China as an example. The simulation results demonstrate that the proposed method has good feasibility and accuracy, and can provide decision-making support for the planning and operation of the new power system.