Study on the Dynamic Control Strategy of Water Level in Joint Scheduling Operation of Cascade Reservoirs in the Middle and Lower Reaches of the Wujiang River During Flood Season
In the context of the national strategy of carbon emission peak and carbon neutrality,implementing dynamic water level control during the flood season can enhance the utilization of flood resources and fully leverage the comprehensive benefits of water conservancy hubs while ensuring flood safety in the basin.The Goupitan,Silin,and Shatuo hydropower stations serve as the primary cascade power stations in the middle and lower reaches of the Wujiang River.Since the current flood control capacity relies on single-reservoir calculations of flood reg-ulation,neglecting joint scheduling and operation,the operating water level during the flood season is statically controlled,thereby limiting power station output and failing to fully realize comprehensive flood season benefits.Based on forecasted pre-discharge and reservoir capaci-ty compensation,this study coordinates flood control risks across multiple regions in the middle and lower reaches of the Wujiang River,con-structed a dynamic control and dispatch model for the operating water levels of cascade reservoirs during the flood season and studied the dy-namic strategies and risks of raising the operating water levels of the Silin and Shatuo reservoirs based on the impoundment of the Goupitan reservoir.The study findings indicate that implementing joint flood forecasting and dispatching for cascade reservoirs can increase the operat-ing water levels of Silin and Shatuo reservoirs by 2.10～3.86 meters and 6.09～6.42 meters respectively in the pre-flood season(June-July),and by 4.17～4.86 meters and 6.21～6.42 meters in the post-flood season(August),respectively.This approach can also mitigate flood con-trol risks for the cascade hubs,the middle and lower reaches of the Wujiang River(Sinan and Yanhe counties),and the middle and lower reaches of the Yangtze River.The results of this study can provide technical guidance for the safe management of flood control and the utiliza-tion of flood resources during the flood season in the Goupitan,Silin,and Shatuo cascade reservoirs.
cascade reservoirsflood operating water leveldynamic controlmiddle and lower reaches of the Wujiang River
万方数据
维普
