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A Probabilistic Reserve Decision-Making Method Based on Cumulative Probability Approximation for High-Penetration Renewable Energy Power System

Yun Yang, Zichao Meng, Guobing Wu, Zhanxin Yang and Ruipeng Guo ()
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Yun Yang: Power Dispatching and Control Center Guangdong Power Grid Corporation, Guangzhou 510335, China
Zichao Meng: Power Dispatching and Control Center Guangdong Power Grid Corporation, Guangzhou 510335, China
Guobing Wu: Power Dispatching and Control Center Guangdong Power Grid Corporation, Guangzhou 510335, China
Zhanxin Yang: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Ruipeng Guo: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

Energies, 2025, vol. 18, issue 10, 1-13

Abstract: Probabilistic modeling of net load forecast errors is an important approach for reserve decision-making in power systems with a high penetration of renewable energy. However, existing probabilistic modeling methods face issues such as insufficient estimation accuracy in the small probability interval of the tails or increased complexity in probability decision-making problems. A probabilistic reserve decision-making method based on cumulative probability approximation is proposed. By using key points on the cumulative probability distribution curve of net load forecast error samples, this method enhances the fitting accuracy of the normal distribution model in the small probability interval of the tail, resulting in an optimal reserve outcome with the desired comprehensive expected profit. Using relevant renewable energy output and load data from actual transmission networks in Guangdong Province, China, the proposed method demonstrates good practical value.

Keywords: reserve decision-making; net load forecast error; cumulative probability distribution; normal distribution model; key points; small probability interval of the tail (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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