The problem of water resources optimal dispatching in Yeerqiang River basin is studied deeply in this paper by using the theory and method of system science, and the optimal dispatching schemes are introduced, and the optimal parameter of Xiabandi reservoir is proposed, which could provide important evidence for actual water resources operation and project device. The main results of the paper are as follows:(1) Dealing with some key questions for basin water resources operation. The Yeerqiang River basin is a complex water resources system, not only must the water for irrigation and zoology be considered, but the electrical compensation for 27 power station should be given attention. In order to realize reasonable dispatching of water resources, some key questions are studied, such as operation method for multi-year reservoir, the associated operation of surface water and ground water, and as a result, the reasonable and feasible disposal measures are put forward.(2) Study on operation principle. According to the analysis of water resources actuality and multiobjective utilization and so on, the operation principle is proposed, viz. the industry agriculture and living water demand should be firstly fulfilled, and then suffice zoology water, and electrical compensation to improve the total power of north and west electrical net, at last full plain reservoirs.(3 )The establishment of water resources optimal dispatching model. Starting from the problem of water resources utilization, the necessity of building Xiabandi reservoir is analyzed, and the optimal operation of Xiabandi reservoir is considered by putting intototal drainage area. Some questions are analyzed systemly such as the optimal dispatching of montanic reservoir, plain reservoirs, water supply to irrigation area, zoology, and Talimu River, hydrologic and electrical compensation. On base of which the rule and the model of optimal operation are established, and the optimal dispatching schemes are acquired by using optimal-simulation method.(4) The select of Xiabanxi reservoir parameter. By using quantitative and qualitative method, the different water resources optimal operation results of hydraulic and energy index under different parameters combination are analyzed, according to which the optimal parameters combination is recommended. |