耦合航运要求的三峡-葛洲坝梯级水电站短期调度快速优化决策

Fast optimal decision of short-term dispatch of Three Gorges and Gezhouba cascade hydropower stations with navigation demand considered

考虑航运和短期电力调度需求,进行三峡-葛洲坝梯级水电站短期调度快速优化决策研究.以航运保证率、库水位符合率和平均坝前水位为决策指标,提出航运条件的评价方法和短期调度快速优化决策策略.结果表明:在确定三峡电站日运行方案下,所提策略可以快速得出可行和最优的三峡-葛洲坝梯级水电站联合运行方案.最优方案不仅符合航运要求,而且可以提高三峡-葛洲坝梯级水电站的日发电量,达到同步实现改善航运和优化电力调度的双重目标.

Fast optimal decision of short-term dispatch of Three Gorges and Gezhouba cascade hydropower stations was developed with navigation and short-term electricity generation considered. Evaluation method of navigation condition and strategy of fast optimal decision of short-term dispatch were put forward with navigation guaranty rate, reservoir level guaranty rate and average reservoir level as decision indexes. Results show that multi feasible or best dispatch solutions of Three Gorges and Gezhouba cas- cade hydropower stations can be rapidly proposed by fast optimal decision strategy when schedule of Three Gorges hydropower station has been planned. And the best one not only satisfies navigation demand, but also increases daily electricity generation.