Reservoir Operation and Early Warning Method Based on Meteorological Numerical Forecast

A numerical forecasting and reservoir technology, which is applied in the field of flood control and drought relief in reservoirs and river basins, can solve problems such as losses, hidden dangers of reservoir dam safety, and poor flood flow, and achieve the effect of ensuring safety and improving risk early warning capabilities
CN110991688BActive Publication Date: 2022-06-07STATE GRID ZHEJIANG ELECTRIC POWER
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID ZHEJIANG ELECTRIC POWER
Publication Date
2022-06-07

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Abstract

The invention discloses a reservoir dispatching and early warning method based on meteorological numerical forecast, which calculates the amount of water that can be stored in the watershed according to the collected hydrological information of each hydropower station in the watershed of the target reservoir, and corrects the pre-influenced rainfall Pa according to the amount of water that can be stored; The runoff coefficient ρ is determined based on the runoff coefficient ρ, and the reservoir can store clean water and precipitation based on the runoff coefficient ρ, and carry out early warning of the stored precipitation; according to hydrological information, river basin information, previous impact rainfall Pa, runoff coefficient The information is used to forecast the short-term runoff of the reservoir and calculate the end-of-term water level in the medium and long term; determine the flood control and drought warning levels according to the hydrological information, meteorological information and end-of-period water level information, and carry out reservoir scheduling. The invention has the following beneficial effects: the risk early warning ability of reservoir dispatching is improved, and the safety of life and property of people in the dam of the reservoir and downstream is ensured.
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Description

technical field

[0001] The invention relates to the technical field of flood control and drought relief in reservoirs and watersheds, in particular to a reservoir dispatching early warning based on meteorological numerical forecast, which can improve the early warning capability of reservoir dispatching risks, and provide flood control and drought relief early warning, precipitation capable precipitation early warning and dispatching scheme for target reservoir watersheds. method. Background technique

[0002] Reservoir dispatching includes flood control dispatching and benefit dispatching, readjustment of natural incoming water through water conservancy facilities, intercepting floods during flood season to reduce flood peaks, reducing upstream and downstream disaster losses, reducing reservoir water abandonment, increasing power generation benefits, and increasing river water supply during non-flood seasons. The comprehensive utilization of downstream ecological environmen...

Claims

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