A drainage basin water quantity dynamic optimization distribution method oriented to total quantity control

Abstract

The invention provides a total amount control-oriented basin water amount dynamic optimization distribution method. The method comprises the following steps of 1, obtaining a typical year incoming water database, a typical year required water database and a water consumption total amount index library; 2, remaining period runoff forecasting is carried out; 3, determining the incoming water frequency of the year; 4, determining an annual total water consumption control index and a remaining period required water sequence of the confronting time period; 5, determining a water resource optimal configuration objective function and constraint conditions; 6, solving the total amount control-oriented water resource configuration model and executing a remaining period flood (scheduling) plan; 7, dynamically updating a water supply (scheduling) plan; And 8, adjusting and evaluating the water quantity at the end of the scheduling period. According to the invention, the annual rolling adjustmentmethod of the total water consumption index in combination with chaotic Volterra runoff forecasting is provided for the first time; The annual total amount control index can be updated month by month,the annual water supply amount of each subarea is controlled within the annual total water consumption index all the time through a real-time monitoring and rolling decision method, and a new idea isprovided for achieving dynamic management of the total water consumption.

Description

technical field [0001] The invention belongs to the field of water resource planning and management, and in particular relates to a method for dynamically optimizing distribution of water volume in a watershed oriented to total volume control. Background technique [0002] As one of the three red lines of the most stringent water resources management system, my country has completed the determination of the total water consumption control indicators of the province, prefecture (city), and county (district) three-level administrative area and formulated corresponding assessment methods. In order to use the total water control index to implement water allocation and dispatching practices, it is necessary to determine the "annual total water consumption control index" (the corrected value of the total water consumption index under different water inflows) and impose constraints on the water amount process. Water allocation and scheduling for total volume control involves three ...

AI Technical Summary

Problems solved by technology

Water allocation and scheduling for total volume control involves three issues: first, the determination of the annual total water consumption control index; second, the allocation method and control means of the annual total water consumption index in the remaining period; The optimal allocation among different water users in different sub-regions

For the first problem, it is usually solved by the proportional principle of "increase in abundance and decline in drought" or by establishing a functional relationship between total water consumption and precipitation. However, according to these methods, the total annual water consumption can only be finally determined after the year has passed. It is not conducive to the dynamic management of total water consumption; for the second and third problems, most of the current research adds the annual total water consumption index as a constant constraint to the allocation model, without considering its changes with the situation of water abundance and dryness in the remaining period. In the adjustment process, the configuration results cannot effectively adapt to the different water conditions during the year

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