关键词: 调峰调频;实时调度;厂内经济运行;负荷优化分配;水电站机组;深溪沟水电站;

Abstract: Affected by the high-intensity peak shaving and modulation task of the upstream Pubugou Hydropower Station, the downstream Shenxigou Hydropower Station located in the middle and lower Dadu River faces many problems such as frequent startup and shutdown of units, steep rise and fall of water level.The conventional real-time load optimization distribution method can not meet the requirements of calculation timeliness, water level control and water use efficiency optimization of the hydropower Station at the same time.To achieve efficient and economical real-time load distribution objectives and improve the comprehensive benefits of Shenxigou Hydropower Station on the premise of ensuring the operation requirements, a real-time load optimization distribution model with two operation objectives(minimum water consumption and stable water level) is proposed.In the model, an idea of combination is introduced to construct the load distribution table to reduce the dimension disaster problem.Aiming at the actual operation of Shenxigou Hydropower Station in late January 2019 and mid July 2019,we prove the applicability of the model.The results show that on the premise of achieving the operation objectives of the hydropower Station, in the dry season, the number of unit startup-shutdown and crossing the vibration area is reduced by 22.2%,the water consumption of power generation is reduced by 0.21%,while for flood season, the water level fluctuation range is reduced by 49.74%,and the number of crossing the vibration area and startup-shutdown is reduced by 50%.The real-time load distribution model can efficiently guide the real-time operation of Shenxigou Hydropower Station, providing references for similar hydropower stations.

Key words: peak shaving and modulation task; real-time scheduling; economic operation in hydropower station; general table of load distribution; hydropower station unit; Shenxigou Hydropower Station;