To ensure the effective flood control of Niudu hydropower reservoir and give full play to the beneficial role

based on the reservoir operating water level over the years

flood season division

flood regulation and characteristic water level

combined with flood control principle

the flood control scheme is studied and the safe discharge volume is analyzed. The scheme is proposed that Niudu hydro_ power station reservoir adopts staged discharge control through spillway

and two hydraulic turbine-gen_ erator units with a capacity of 10 MW are also involved in flood discharge within the water head range of 31.27~37.34 m. This scheme can not only meet the power generation benefit and environmental wa_ ter needs

but also can rationally utilize regional water resources and make full use of the reservoir ca_ pacity of Niudu hydropower station. The current flood control standard for downstream is greater than the return period of 20 years

and th