Author(s): Gao Maolin; Chao Wang; Feng Wenwen
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Keywords: Cascade hydropower station Diversion works Optimized scheduling Power generation benefit
Abstract: Optimal scheduling of cascade hydropower stations has always been a focal point in the field of reservoir scheduling. In the scheduling of cascade hydropower stations, the hydraulic connections between the stations and the upstream inflow are closely linked, and the relationships are complex, requiring a comprehensive consideration of the comprehensive impact of runoff uncertainty on the operational processes of the hydropower stations. This paper constructs an optimization scheduling model for cascade hydropower stations under water diversion conditions, analyzes the influencing factors of water diversion on the operation of cascade hydropower stations, and solves the optimal scheduling schemes under different water diversion scenarios. Taking the cascade hydropower stations in the Hun River Basin as an example, the results show that: (1) there is a certain conflict between water diversion projects and the water needs for power generation at cascade hydropower stations, affecting the power generation benefits during the non-flood season; (2) compared with the no-water-diversion scenario, the water diversion volume increased by 3.544 billion cubic meters, resulting in a reduction of 467 million kWh in the total power generation of the cascade, and a decrease of 2.64 billion cubic meters in the available water volume at the end of the flood control period in the Huaren Reservoir. The optimization scheduling model for cascade hydropower stations under water diversion conditions established in this study is of significant importance for improving the power generation efficiency of cascade hydropower stations.
Year: 2025