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Effective integer variable identification method for spot market clearing model

A market clearing and identification method technology, applied in data processing applications, instruments, forecasting, etc., can solve problems affecting calculation efficiency and achieve the effect of improving solution efficiency

Inactive Publication Date: 2021-01-05
CHINA SOUTHERN POWER GRID COMPANY
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Problems solved by technology

[0005] The object of the present invention is to provide a method for identifying active integer variables oriented to the spot market clearing model, a computer terminal device, and a computer-readable storage medium. The method is based on the standard optimization model of the spot market and a mature mathematical optimization algorithm. It can quickly and accurately identify the set of effective integer variables that require branch calculations to solve numerous discrete variables and different types of complex constraints (including system constraints, unit constraints, unit group constraints, network constraints, etc.) The problem that the earth affects the computational efficiency of the problem

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  • Effective integer variable identification method for spot market clearing model
  • Effective integer variable identification method for spot market clearing model
  • Effective integer variable identification method for spot market clearing model

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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] It should be understood that the step numbers used herein are only for convenience of description, and are not intended to limit the execution order of the steps.

[0039] It should be understood that the terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an"...

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Abstract

The invention discloses an effective integer variable identification method for a spot market clearing model. The method comprises the steps of obtaining basic data required by calculation; inputtingthe basic data into a preset relaxation economic dispatch model, solving the result of the relaxation economic dispatch problem, and determining the start-stop trend of the unit; further identifying an integer variable acting according to the start-stop trend of the unit; fixing necessary opening and necessary stopping variables in the safety constraint unit combination model according to the integer variables playing a role, and simplifying the safety constraint unit combination model; and solving the simplified constraint unit combination model to obtain the start-stop state and bid winningoutput result of each unit in each time period. Based on a spot market standard optimization model and a mature mathematical optimization algorithm, various complex constraint conditions are comprehensively considered, an acting integer variable set needing branch calculation can be quickly and accurately recognized, the calculation amount of branches and combinations in the safety constraint unitcombination is reduced, and the calculation efficiency is improved, so that the solving efficiency of the safety constraint unit commitment problem is improved.

Description

technical field [0001] The invention relates to the technical field of power dispatching automation, in particular to a method for identifying active integer variables oriented to a spot market clearing model, a computer terminal device and a computer-readable storage medium. Background technique [0002] In the electricity market environment, the start-stop and output plans of generating units are determined by the power spot market clearing algorithm, and the core of the clearing algorithm is the security constrained unit commitment (SCUC). Safety-constrained unit combination is essentially a large-scale mixed integer programming problem, and its calculation difficulty is exponential complexity, that is, every time a 0-1 variable of unit start-stop status is added, the calculation speed of solving its exact solution is the worst case It will be doubled. Numerous discrete variables and different types of complex constraints (including system constraints, unit constraints, ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06G06Q10/06
CPCG06Q10/04G06Q50/06G06Q10/067
Inventor 胡荣顾慧杰彭超逸高红亮聂涌泉
Owner CHINA SOUTHERN POWER GRID COMPANY
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