Cascade reservoir flood control water level real-time dynamic control method

Abstract

The invention discloses a cascade reservoir flood control water level real-time dynamic control method. The cascade reservoir flood control water level real-time dynamic control method comprises the following steps: (1) building a numerical meteorological hydrological forecast model of the flood season of a river basin, forecasting the flood process of the river basin of the future 1- 7 days in a rolling mode, (2) building a 'large scale system polymerization idea'-based random long-term optimization scheduling graph model, using a self-adaptive genetic algorithm to make a long-term optimization scheduling graph, (3) building a 'large scale system polymerization decomposition idea'-based cascade reservoir flood control water level real-time dynamic control model according to the coupling principle of long-term and short-term scheduling, and using a sequential optimization method to optimize and obtain a cascade reservoir flood control level real-time dynamic control scheme. The cascade reservoir flood control water level real-time dynamic control method can conduct unified schedule to all reservoirs in the upstream and the downstream of a cascade reservoir group, improve the power benefit of the cascade reservoir to the maximum under the premise that flood control safety of the cascade reservoir is guaranteed, is suitable for cascade reservoirs or reservoir groups flood resource scheduling, and can be widely applied to river basin cascade reservoir flood control water level real-time dynamic control.

Description

technical field [0001] The invention belongs to the field of cascade reservoir dispatching, in particular to a method for real-time dynamic control of the flood limit water level of the cascade reservoir. Background technique [0002] Entering the 21st century, with the completion and commissioning of a large number of reservoir hydropower stations in my country, China's water conservancy and hydropower projects have entered a critical transition period from construction to management and operation. The joint dispatch of reservoir hydropower station groups is in line with "energy-saving power generation" and "flood resource utilization". "A major measure of the needs of the times has important theoretical value and practical significance. The dynamic control of flood limit water level is one of the important non-engineering measures to realize "flood resource utilization". With the increase in the number (dimension) of reservoirs in the reservoir system and the substantial i...

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Problems solved by technology

Considering that actual reservoir dispatching is a rolling forward process of "forecasting, decision-making, implementation, re-forecasting, re-decision-making, and re-implementation" [5] , it can be seen that the existing dynamic control model of cascade reservoir flood limit water level only pays attention to the current water regime change, and does not take into account the long-term change law of the inflow runoff

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