Step reservoir flood limit water level combined application dispatching method

Abstract

The invention discloses a step reservoir flood limit water level combined application dispatching method which comprises the following steps of: 1. establishing a polymerized reservoir-based prediction prestorage model; 2. establishing a prestorage reservoir capability upper limit relationship model of upstream and downstream step reservoirs according to the hydraulic relation between the upstream and the downstream reservoirs and the flood control standards of all flood control points; 3. confirming the optimal target and the constraint condition of step reservoir flood limit water level combined application dispatch; and 4. obtaining a step reservoir flood limit water level combined application dispatching scheme by adopting an optimal method. The invention can be used for carrying out uniform dispatch on the flood limit water level of all upstream and downstream reservoirs of a step reservoir in the flood period and can improve the economical benefits of the step reservoir to the greatest extent on the premise of ensuring the flood control safety of the step reservoir, is suitable for application in the step reservoir or reservoir group flood resource dispatch and can be widely applied to the river basin step reservoir flood limit water level combined application dispatch.

Description

technical field [0001] The invention relates to the technical field of cascade reservoir dispatching, in particular to a dispatching method for joint operation of cascade reservoir flood limit water levels. Background technique [0002] The flood limit water level is the upper limit water level that the reservoir is allowed to store in the flood season, also known as the flood control limit water level. In years of research and practice, the theory of flood limit water level has been greatly developed. The control method of limited water level in flood season has mainly gone through three stages: single fixed water level control, staged fixed water level control, and staged dynamic water level control (namely: dynamic control of limited water level in flood season). The single fixed water level control only uses the statistical information of the flood to control the limited water level in the flood season; the generation of the concept of staged water level control utilize...

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Problems solved by technology

However, the research methods of the above two cascade reservoir flood limit water levels are not perfect, and neither of them has introduced the internal relationship between the flood limit water levels of the cascade reservoirs and determined the control area for the combined use of the flood limit water levels of the cascade reservoirs.

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