Short-term optimal operation of xiaolangdi and xixiayuan cascade hydropower stations

摘要

As the famous hydraulic project in the world, Xiaolangdi hydraulic project has an important influence in water conservancy construction of China. The project is located at the exit of last gorge of the middle reach of the Yellow River, 130 km downstream of Sanmenxia reservoir, 128 km upstream of Huayuankou of Zhengzhou city, where in the key position for flood and sediment control of the Yellow River. The project adopts the bank loan, the international bidding construction, is divided three sign sections, and involves 51 countries and the area, 700 foreign merchants and Chinese ten thousand constructors. At present, the operation mode of Xiaolangdi hydropower station on the middle Yellow River had a major impact after the running of Xixiayuan. Based on analysis operation mode in short-term of Xiaolangdi hydropower station in this paper, cascade energy/efficiency maximization model were established, which solved by Accelerating Genetic Algorithm. Then the accuracy and stability of models were verified from the single and joint, conventional and optimization point of view. The results show that: through the compensation effect of Xixiayuan anti-regulation reservoir, the contradiction between water supply and power generation of Xiaolangdi hydropower station was solved. Moreover, water resources utilization of the comprehensive utilization reservoir and economic benefits of the power enterprise were enhanced.