Reasonable Energy-Abandonment Operation of a Combined Power Generation System with an Ultra-High Proportion of Renewable Energy

Hao Zhang, Jingyue Yang, Chenxi Li, Pengcheng Guo (), Jun Liu, Ruibao Jin, Jing Hu, Fengyuan Gan and Fei Cao
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Hao Zhang: School of Water Resources and Hydroelectric Engineering, Xi’an University of Technology, Xi’an 710048, China
Jingyue Yang: School of Water Resources and Hydroelectric Engineering, Xi’an University of Technology, Xi’an 710048, China
Chenxi Li: School of Water Resources and Hydroelectric Engineering, Xi’an University of Technology, Xi’an 710048, China
Pengcheng Guo: School of Water Resources and Hydroelectric Engineering, Xi’an University of Technology, Xi’an 710048, China
Jun Liu: Henan Jiaotou Jiaozheng Expressway Co., Ltd., Zhengzhou 450003, China
Ruibao Jin: Henan Jiaotou Jiaozheng Expressway Co., Ltd., Zhengzhou 450003, China
Jing Hu: Henan Jiaotou Jiaozheng Expressway Co., Ltd., Zhengzhou 450003, China
Fengyuan Gan: Henan Province Highway Engineering Bureau Group Co., Ltd., Zhengzhou 450000, China
Fei Cao: Henan Railway Construction & Investment Group Co., Ltd., Zhengzhou 450046, China

Energies, 2024, vol. 17, issue 8, 1-18

Abstract: With large-scale grid-connected renewable energy, new power systems require more flexible and reliable energy storage power sources. Pumped storage stations play an important role in peak shaving, valley filling, and promoting renewable energy consumption. This paper presents the reasonable energy-abandonment operation of a combined power generation system (CPGS), in which a pumped storage station is the core control power, with an ultra-high proportion of renewable energy. Firstly, based on the seasonal characteristics of wind, solar, and load demand, typical days are selected through improved clustering analysis algorithms. Then, a daily optimal scheduling model for combined power generation systems (CPGS) is developed with the goals of economy, low-carbon, and stable operation. Finally, the correlation between the energy-abandonment rate and pumped storage station peak shaving and system optimization operation indicators is obtained by a reasonable energy-abandonment calculation method considering source-grid-load coordination. Taking the operation data of an energy base in the western region of China as an example, when the penetration rate of renewable energy is 60–70% in the future, the operating cost on the power side is greatly affected by the construction of the source side. When the system operates at a planned reasonable energy-abandonment rate of 2%, electricity regulation, load tracking, and daily operating costs all show better performance.

Keywords: combined power generation system; optimal operation; ultra-high proportion of renewable energy; reasonable energy-abandonment; pumped storage power station (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: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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