嵌入水安全调控因子的短期梯调优化模型  

Embedding regulatory water safety factor into a short-term optimal dispatch model for cascade reservoir operations

作　　者：李永[1] 裴伟征[1] 李嘉[1] 李克锋[1] 朱明[1] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《水科学进展》2014年第1期130-138,共9页Advances in Water Science

基　　金：四川省科技厅科技支撑计划资助项目(2012SZ0044)~~

摘　　要：为在梯级水库短期优化调度中更有效地考虑河流水安全需求,建立一种通过调控因子对水安全需求进行表征的短期梯调优化模型。在该模型构建中,应用Vague集对河流水安全进行度量,并引入水安全调控因子,推导得到考虑水安全需求的梯级下泄流量约束计算公式,通过下泄流量约束将调控因子嵌入短期梯调优化模型。通过该模型,可根据河流水安全需求确定调控因子,并求解得到相应的短期梯调优化方案。嘉陵江中游航电三梯级的应用分析表明,该模型能在满足河流水安全需求情况下,实现短期梯调较优的经济效益。在短期梯调优化模型中嵌入水安全调控因子,与未嵌入调控因子情形相比,既能提高梯级发电效益,又能不降低梯级运行相关的河流水安全度。In order to effectively ensure the needs for water safety during the short-term optimal dispatch of cascaded reservoirs, a model for cascade reservoir operation is established. A regulatory water safety factor is embedded into the model to achieve the water safety objective. A Vague set is used for the water safety measurement in the development of the model, and the regulatory water safety factor is the regulatory water safety factor is introduced for calculating the discharge constraint of the cascaded reservoirs, which is considered as part of water safety requirements. With the ob- tained discharge constraint, the regulatory water safety factor can thus be embedded into the short-term optimal dis- patch model for cascade reservoir operations. The regulatory factor in the model can be defined according to the water safety requirements, and the corresponding short-term optimal dispatch scheme can thus be determined accordingly. The model is applied to optimize the cascade reservoir operation in the middle reach of Jialing River, consisting of three multipurpose reservoirs for navigation and hydroelectric power production. Results show that the model is able to achieve the maximum benefit from the short-term optimal dispatch of cascaded reservoirs, while ensuring the needs for water safety. Embedding the regulatory water safety factor into the model not only improves the benefit from cascade reservoir operations, but also preserves the water safety requirements.

关 键 词：梯级水库 短期优化调度 河流水安全 水安全调控因子 VAGUE集 

分 类 号：TV213.4[水利工程—水文学及水资源]