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基于三峡—葛洲坝梯级统一调度的思想,首先分析了三峡水库不同出库流量下两坝间水位变化对梯级水电站运行水头的影响规律,然后以三峡水库汛限水位和正常蓄水位为例,利用建立的梯级水电站发电模拟模型探讨了两坝间水位变化对梯级出力的影响。最后,通过大量模拟计算,得到三峡水库坝前水位和出库流量各种组合下的梯级最大出力及其对应的两坝间水位,据此提炼了两坝间水位的优化控制策略。
Based on the unified planning of the Three Gorges-Gezhouba cascade, the paper first analyzes the influence of the water level changes between the two reservoirs on the operating head of the cascade hydropower station under different outflow rates of the Three Gorges Reservoir. Taking the flood control water level and the normal water level of the Three Gorges Reservoir as an example, The establishment of the cascade hydropower station power generation simulation model discusses the water level changes between two dam on the cascade output. Finally, through a large number of simulation calculations, the maximum output of the cascade and the corresponding water level between the two dams under various combinations of the water level and the discharge flow of the Three Gorges Reservoir are obtained, and the optimal control strategy of the water level between the two dams is refined.