Water level prediction analysis and control method of a hydropower station reservoir

Abstract

The invention discloses a water level prediction analysis and control method of a hydropower station reservoir, comprising the following steps: 1) acquiring real-time operation information of a cascade hydropower station group; 2) calculating the change amount of the water storage flow in the reservoir; 3) analyzing and predicting that trend of the reservoir water level, and drawing a water levelchange trend map; 4) calculating the suggested open degree of the gate adjustment, and automatically adjusting the opening degree of the gate; 5) when the gate adjustment needs to increase the discharge, automatically communicating the automatic linkage flood release warning system to send the flood release warning information to the person in charge of the downstream flood control in a timely manner. The invention can accurately predict the short-term change trend of the water level of the reservoir of the hydropower station, and further adjust the gate so as to reduce the operation frequencyof the gate, improve the gate adjustment precision and realize the purpose of maximizing the utilization of water resources for generating electricity. At the same time, when the discharge of the gate is increased, the flood release warning information can be transmitted in time through communication with the flood release warning system, so as to ensure the safety of the life and property of people in the downstream.

Description

technical field [0001] The invention relates to the technical field of hydropower stations, in particular to a method for predicting, analyzing and controlling the water level of reservoirs of hydropower stations. Background technique [0002] In the operation of the cascade hydropower station group, there is a characteristic that the reservoirs are connected end to end. When the geographical location of the reservoirs in the cascade hydropower station group is relatively close, there is basically no lag time between the two reservoir areas of the water flow, and the hydraulic connection is very close. Compared with the conventional cascade reservoir system, there are obvious differences in the regulation and operation of this type of cascade reservoir system. For this type of cascade reservoir system, if the upstream reservoir is an annual regulation reservoir and the downstream is a daily regulation reservoir, the load change of the upstream or downstream power station can ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for predicting, analyzing and controlling the reservoir water level of cascade hydropower station reservoirs and adjusting the accuracy of the gates, which can accurately predict the short-term change trend of the reservoir water level of the hydropower station, and then adjust the gates. So as to reduce the gate operation frequency, improve the gate adjustment accuracy, and achieve the purpose of maximizing the use of water resources for power generation

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