Application Of Fuzzy Theory In The Flood Operation Of Cascade Reservoirs

Nowadays,in our country, the imbalance of supply and demand in water resource is sharper and sharper day by day,on the other hand a large number of flood resources was wasted in flood season.So this paper considers in the following respects: Describes and divides scientifically in flood season;The curve fitting is made for the experience subjection function, on the basis of flood period division, in order to provide theory support for flood limit level;The optimal operation decisions are obtained by fuzzy optimization in flood operation of multiobjective cascade reservoirs of the main period flood.This paper quotes fuzzy mathematics to analyze multiobjective flood operation in Wujiang cascade reservoirs.The research contents are as follows:(1) Fuzzy set analysis method and fuzzy classification are applicatied to flood period division in Wujiang River basin.The flood season results of two method are contrasted and confirmed a reasonable flood season basin dividing areas finally;(2) The curve fitting is made for the experience subjection function . The time of theory subjection which is got from it supported determining objective weights to for flood limit level;(3) On the basis of multiobjective flood operation of cascade reservoirs of the main period flood. Multiobjective fuzzy optimization model of flood operation of cascade reservoirs is setted up and applied in case of it.It is proved that fuzzy mathematics showed his superiority in the application of multiobjective flood operation of cascade reservoirs.