Study on smooth correction method of inflow into Danjiangkou Reservoir
Accurate inflow into reservoir calculation is an important basis for scientific reservoir operation.However,the severe jumping phenomenon of reverse deduced inflow remains a difficult problem.In this study,the principles and applicability of com-monly used methods for calculating inflow are discussed.Focusing on the characteristics of Danjiangkou Reservoir capacity,we quantitatively compared and analyzed the main factors that affect the inverted calculation of static storage capacity by using the single variable methods,such as the number of reverse calculation periods,the sliding average algorithm,and representativeness of water level in front of the dam.Then,a smooth correction calculation method for the inflow into Danjiangkou Reservoir was pro-posed.The results showed that for Danjiangkou Reservoir,the inverted deduced reservoir capacity method can obtain both quasi-deterministic and smooth inflow calculation results,coupled with 6 h inversion,6 h sliding,and the multi-station average levels as the water level in front of the dam.The proposed method ensured that the peak flow and peak time are closer to the real situa-tion,while the variance of the inflow flow was smaller and the smoothness was higher.The research results can provide important technical support for the scientific and refined operation of Danjiangkou Reservoir.
inflow into reservoirhydrologic balancereverse deduction by static storage capacitymoving averageDanjiangkou Reservoir
国家科技期刊平台
NSTL
万方数据
维普
