Gas−Hydro Coordinated Peaking Considering Source-Load Uncertainty and Deep Peaking

Chong Wu, Tong Xu, Shenhao Yang (), Yong Zheng, Xiaobin Yan, Maoyu Mao, Ziyi Jiang and Qian Li
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Chong Wu: Energy Planning and Research Institute, Southwest Electric Power Design Institute Co., Ltd., China Power Engineering Consulting Group, Chengdu 610500, China
Tong Xu: Energy Planning and Research Institute, Southwest Electric Power Design Institute Co., Ltd., China Power Engineering Consulting Group, Chengdu 610500, China
Shenhao Yang: Energy Planning and Research Institute, Southwest Electric Power Design Institute Co., Ltd., China Power Engineering Consulting Group, Chengdu 610500, China
Yong Zheng: Energy Planning and Research Institute, Southwest Electric Power Design Institute Co., Ltd., China Power Engineering Consulting Group, Chengdu 610500, China
Xiaobin Yan: Energy Planning and Research Institute, Southwest Electric Power Design Institute Co., Ltd., China Power Engineering Consulting Group, Chengdu 610500, China
Maoyu Mao: School of Electrical and Information, Southwest Petroleum University, Chengdu 610500, China
Ziyi Jiang: School of Electrical and Information, Southwest Petroleum University, Chengdu 610500, China
Qian Li: School of Electrical and Information, Southwest Petroleum University, Chengdu 610500, China

Energies, 2025, vol. 18, issue 5, 1-23

Abstract: Considering the power demand in high-altitude special environmental areas and the peak-regulation issues in the power system caused by the uncertainties associated with wind and photovoltaic power as well as load, a gas–hydro coordinated peak-shaving method that considers source-load uncertainty is proposed. Firstly, based on the regulation-related characteristics of hydropower and gas power, a gas−hydro coordinated operation mode is proposed. Secondly, the system operational risk caused by source-load uncertainty is quantified based on the Conditional Value-at-Risk theory. Then, the cost of deep peak shaving in connection with gas-fired power generation is estimated, and a gas−hydro coordinated peak-shaving model considering risk constraints and deep peak shaving is established. Finally, a specific example verifies that the proposed gas−hydro coordinated peak-regulation model can effectively improve the economy of the system. The total system profit increased by 36.03%, indicating that this method enhances the total system profit and achieves better peak-shaving effects.

Keywords: source-load uncertainty; operation risk; gas−hydropower coordinated operation; peak shaving (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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