A canal pool regulation method under the condition of unbalanced inlet and outlet flow in series canal pools

Abstract

The invention discloses a channel pool regulation method under the condition of unbalanced inlet and outlet flows in serial channel pools. The channel pool regulation method includes the steps that through target water level intervals of channel pools, target water levels of the channel pools for calculation and water level deviation weights of the channel pools are determined; the difference between a real-time water level and the target water level is calculated to obtain the real-time water level deviation; by using the water level deviation weights of the channel pools and the real-time water level deviation, a regulation judgment parameter D<j> is formulated; and the regulation judgment parameter D<j> is taken as an input value of a PI control algorithm, and flow changing values of other regulators except the most upstream and the most downstream regulators are calculated. The method that under the conditions of mismatching of the inlet and outlet flows in the serial channel poolsand temporary unadjustment of the most upstream inlet flow, the self-storage capacity of the channel pools is used for meeting the water supply demand and regulating regulators of the channel pools is provided, the maximum water level variation amplitude the channel pools is reduced, and engineering safety and water supply stability are met.

Description

technical field [0001] The invention belongs to the field of automatic control of canal ponds, especially when the inlet and outlet flows of the series canal ponds do not match, and the most upstream inlet flow cannot be adjusted temporarily, the self-storage of the canal ponds is used to meet the water supply demand, so that the whole line The change trend of the water level of each canal pool is close, so as to make full use of the storage capacity of the canal pool to meet the outlet flow demand. Background technique [0002] With the development of society and economy, people's demand for water resources is increasing. The construction of large-scale long-distance water transmission projects has become the most effective and direct means to adjust the uneven distribution of water resources in time and space and solve the contradiction between supply and demand of water resources. Most of the large-scale open channel water delivery projects currently built are open channe...

AI Technical Summary

Problems solved by technology

If the flow rate of the control gate 0 can only be adjusted once a day, and cannot participate in the regulation in real time, if the water diversion volume of the downstream diversion port changes, the flow balance of the inlet and outlet cannot be achieved in a short time

At this time, if the conventional control method is adopted, then in the end, the flow imbalance between the inlet and outlet of the canal pool 1 is the most obvious, resulting in an extremely obvious change in the water level in the canal pool 1, and eventually the canal pool 1 overflows or the water level drops until the water supply is interrupted

Images