Optimal Dispatch of Collaborative Peak Adjustment Between Pumped Storage Power Station and Downstream Hydropower Station

doi:10.3969/j.issn.1008-0198.2025.03.004

Abstract

Abstract: Aiming at the problems of the difficulty to fulfill the power generation task due to low water levels and insufficient water volume in dry water season, and unstable power generation due to high water levels, excessive water volume and excessive water abandonment in abundant water season, a model of a hydroelectric complementary power generation system with joint operation of a hydropower station and pumped storage power station is established, and the original model is transformed into a mixed-integer linear programming model using the stage linear fitting technique. The particle swarm optimization algorithm is used to calculate the downstream hydropower station's peak adjustment and valley filling mechanism by installing a pumped storage power station with an independent reservoir that can store water upstream. The optimal scheduling scheme in the operation cycle is obtained, which significantly improves the stability of hydropower station power generation and solves the problems of excessive water abandonment, unstable power generation, and lower power generation quality of hydropower stations.

Key words: pumped storage power station, hydroelectric complementary power generation system, mixed-integer linear programming model, particle swarm optimization, optimal dispatch

CLC Number:

TM732

WANG Hui, WANG Zhengwei, CHEN Heng, FAN Lanxin, DONG Changqing, LEi Jing. Optimal Dispatch of Collaborative Peak Adjustment Between Pumped Storage Power Station and Downstream Hydropower Station[J]. Hunan Electric Power, 2025, 45(3): 27-34.

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