A Multi-Objective Optimization Method of Sustainable Wind–Photovoltaic–Hydro Systems Considering Source–Grid Coordination

Qin Shen, Li Mo (), Zixuan Liu, Xutong Sun, Guanjun Liu and Yongchuan Zhang
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Qin Shen: School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Li Mo: School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Zixuan Liu: School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Xutong Sun: School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Guanjun Liu: School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Yongchuan Zhang: School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Sustainability, 2023, vol. 16, issue 1, 1-19

Abstract: Hydropower compensating for wind and solar power is an efficient approach to overcoming challenges in the integration of sustainable energy. Our study proposes a multi-objective scheduling model for the complementary operation of wind–photovoltaic–hydro systems. The model aims to maximize the total generation while minimizing the mean square deviation of the system output and grid load. Taking wind and solar bases and key peak-shaving cascade hydropower stations in Hubei Province as a case study, various multi-objective Pareto solution sets were obtained for different scheduling periods. The analysis dissects the relationship between total generation and the stability of residual load after adjustment by the wind–photovoltaic–hydro systems. Furthermore, the study analyzes the role that a complementary system should play in the power grid and discusses the effect of cascade hydropower scheduling methods on the operational characteristics of multi-energy complementary systems.

Keywords: wind–photovoltaic–hydro system; power generation; load fluctuation; complementary mechanism; Pareto set (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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