Dynamic Control of Pankou Reservoir Water Level during Flood Season

Abstract

The determination of dynamic control domain of reservoir water level during flood season is one of the important issues for both reservoir operation and water conservancy. The flood control task and operation rule of Pankou reservoir has been changed several times, which leads to low flood control water level and waste water resources during flood season. According to current reservoir operation rules, the flood control water level is derived by the Runge-Kutta numerical solution method. It is shown that the flood control water level during main flood season can be increased from 347.6 m to 350.9 m without reducing flood prevention standards. Based on 6 h flow forecasting information and pre-discharge operation, the interval of dynamic control water level is estimated and ranges from 350.9 m -351.5 m subjected to the constraints without increasing flood control risks. The dynamic control of water level during flood season can significantly increase comprehensive benefits of the Pankou reservoir.