Method for controlling large-scale water delivery open channel gate based on superposition wave absorbing principle

Abstract

The invention relates to a method for controlling a large-scale water delivery open channel gate based on the superposition wave absorbing principle. The method for controlling the large-scale water delivery open channel gate based on the superposition wave absorbing principle comprises the steps of calculating translation time of waves of translation, calculating the superposition time of positive waves of translation and negative waves of translation, determining the flow parameter of a water distributing opening, calculating the moment of adjustment of the opening degree of a regulator, calculating the adjustment value of the storage quantity of a channel, calculating the adjustment value of the flow of the regulator, calculating the actual opening degree of the regulator, executing the opening degree of the regulator, determining the back-adjusting time of the regulator, calculating the back-adjusting value of the flow of the regulator, calculating the back-adjusting plan of the opening degree of the regulator, and executing back-adjusting of the opening degree of the regulator. By the adoption of the method for controlling the large-scale water delivery open channel gate based on the superposition wave absorbing principle, the time and the water flow of water supply of the channel are matched with the time and the water flow of water use of the water distributing opening respectively, the water-level fluctuation at the position adjacent to the water distributing opening is obviously reduced, and therefore the possibility of the channel lining damage accident is reduced; in addition, the operation and management cost for monitoring, management and the like is reduced.

Description

technical field [0001] The invention relates to a gate control method of a large-scale open channel for water conveyance based on the principle of superimposed wave elimination, which is an automatic control method for hydraulic facilities and an automatic control method for water flow applicable to large-scale open-channel water-conveyance projects. Background technique [0002] Open channels are the main water delivery method for agricultural irrigation and water diversion projects. The open water channel is usually divided into multiple canal sections connected in series by control sluices, and water diversion outlets are arranged in each canal section to supply water to rural areas or cities along the line. When the diversion port changes the diversion flow rate according to the water use plan, the water level and flow rate in the channel will change accordingly. In order to ensure the water balance of the entire channel, it is necessary to adjust the opening of each con...

AI Technical Summary

Problems solved by technology

However, due to the high speed of the moving wave, the estimated time is short, and the opening and closing time of the control gate is obviously late. As a result, when the water diversion is opened, the upstream "replenishment" has just started, but it is far from being completed, resulting in a large drop in the water level at the water diversion. , also need to be closely monitored, and the operation and maintenance costs are also relatively large

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