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Operation Control Water Level Corridor During the Storage Period for a Large-scale Hydropower Station
CHEN Xiao, CAI Shu-bing, LI Wen-jun, XU Yang, ZHANG Zheng
Journal of Changjiang River Scientific Research Institute ›› 2026, Vol. 43 ›› Issue (11) : 34-40.
PDF(1059 KB)
PDF(1059 KB)
Operation Control Water Level Corridor During the Storage Period for a Large-scale Hydropower Station
[Objective] To ensure the downstream flood safety and fully realize power generation benefits, the operation control water level during the storage period of the hydropower station was studied in this paper. [Methods] The amount of water volume that could be stored was calculated by constructing a long series of runoff regulation model, and the required flood storage capacity needs to be reserved were calculated by a joint flood control scheduling model for cascade reservoirs, which promoting to propose the operating control water level corridor. The research was conducted at the Wudongde hydropower station in the lower reaches of the Jinsha River. [Results] To ensure flood control safety, the operation control water level on August 11th and August 21th should be controlled at 966.00 m and 970.90 m respectively; to maximize the full-storage ratio, the operation control water level on August 21th should not be lower than 960.16 m. [Conclusions] The research results refined the method for determining the operation control water level corridors during the storage period, which achieves an effective synergy between power generation efficiency improvement and flood prevention security during the water storage period; some have been applied in the engineering design during the feasibility study stage and dispatching operation, which providing scientific basis for the research on the scheduling methods during the water storage period of large hydropower stations.
storage period / operation control water level / scheduling diagrams of reservoir / Wudongde hydropower station / coordination between power generation and flood control
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