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一、问题的提出在我国某些地区水资源的供需矛盾比较突出,单纯依靠建水库拦蓄河流来水,往往不能满足用水需要;还可以在下游水源充沛的江河或湖泊,采取工程措施抽水,以解决供水问题。如江苏北部就是属于上游洪泽湖水库与下游江都抽水站联合供水的地区。水库与抽水站水量联合调度,它既要满足用水需要,又要节约抽水电能,因此,要求充分利用水库拦蓄上游来水,当上游来水不能满足用水时动用抽水站抽水补充。由于受气候、季节等因素影响,水资源的供需关系在时间上通常是不平衡的,特别是在干旱年份的农业用水高峰期,即使水库上游来水加下游抽水站的抽水量,往往还不能充分满足用水需要,出现水量亏缺;在降雨和来水偏丰年份或非农业用水季节,出现水量剩余。为此,在工程运用调度中,
First, the issue raised In some areas of China’s water supply and demand contradictions more prominent, relying solely on building reservoirs to shut down rivers and lakes, often can not meet the needs of water can also be abundant in downstream rivers or lakes, engineering measures to take water to Solve the water supply problem. For example, the northern part of Jiangsu belongs to the area where the upstream Hongzehu Reservoir and the downstream Jiangdu pumping station jointly supply water. It is necessary to meet the need of water supply and to save pumping energy. Therefore, it is required to make full use of upstream and downstream water intake of reservoirs and to supplement the pumping stations when the upstream and downstream water supply can not meet the need of water supply. Due to the influence of climate and season, the water supply and demand are usually unbalanced in time. Especially in the peak period of agricultural water use in dry years, even if the upstream of reservoirs and the pumping capacity of downstream pumping stations are not enough Fully meet the water needs, there is a shortage of water; in the rainy and over-abundance years or non-agricultural water season, the amount of water remaining. To this end, in the project operation and scheduling,