Study on the simulation and optimal control of water-supply system of a large-scale irrigation district

Based on the principles and methodologies of system science, a simulative model of an irritation district is made by the technology of system simulation, with the consideration on the needs of the water-supply-structure variation. The multi-objects model applies improved AHP method, is turned into a single object,one, and a so called experiment genetic algorithms (EGA) is used to achieve the optimization of the design parameters and operation rules of the engineering. A real example is given to show that, with the optimal designs for the water-delivering engineering in a certain irrigation disirict, the social nd economical benefits of water resources, with the usage efficiency being improved, could be achieved as it should be.