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Clearing method and device based on security constraint unit commitment model

A unit combination and security-constrained technology, applied to circuit devices, AC networks with energy trade/energy transmission authority, forecasting, etc., can solve the problem of SCUC problems without effective improvement, etc., to reduce the time delay of electricity price settlement and save costs , the effect of improving the calculation speed

Active Publication Date: 2021-06-08
YUNNAN POWER GRID
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  • Application Information

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Problems solved by technology

In addition, due to the particularity of the SCUC problem, the redundancy phenomenon of the equality constraint basically does not appear, and the scale reduction of the equality constraint does not effectively improve the SCUC problem

Method used

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  • Clearing method and device based on security constraint unit commitment model
  • Clearing method and device based on security constraint unit commitment model
  • Clearing method and device based on security constraint unit commitment model

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Embodiment Construction

[0085] 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.

[0086] See figure 1 , figure 1 It is a schematic flow diagram of an embodiment of the clearing method based on the safety-constrained unit combination model provided by the present invention; figure 1 As shown, the specific steps of the clearing method based on the safety constraint unit combination model include steps 101 to 104:

[0087] Step 101: Obtain an unsolved SCUC model; wherein, the constraints of the SCUC model include climbing constraints and network ...

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Abstract

The invention discloses a clearing method and device based on a security constraint unit commitment model, and the method comprises the steps that an unsolved SCUC model is obtained, and in the climbing constraint of the SCUC model, different constraints are added to the SCUC model according to the climbing rate and the maximum technical output and minimum technical output of all units; in the network constraints of all the lines of the SCUC model, redundant model constraints are eliminated according to the blocking condition of all the lines; and finally, clearing calculation is carried out on the cost function of the optimized SCUC model, and clearing results comprise unit commitment and time-sharing node electricity price results. By adopting the theory of the invention, the clearing engine can be accelerated to solve the SCUC model, so that the calculation efficiency of the clearing engine of the electricity transaction center is improved, the time delay of electricity price settlement is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of power market clearing, in particular to a clearing method and device based on a safety-constrained unit combination model. Background technique [0002] With the accelerated pace of China's electricity market reform, the scale of the electricity spot trading market across the country has continued to expand, and the business of electricity transmission and distribution prices, distribution and sales of electricity trading centers has also been continuously improved. In the electricity trading market, spot transactions generally determine the quantity and price of electric energy transactions through bidding. Spot transactions include day-ahead transactions, intraday transactions, and real-time transactions. In the environment of the electricity spot market, the optimization calculation goal of the transaction center's clearing engine is to maximize social welfare, which includes consideration of the secu...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q30/02G06Q50/06H02J3/00
CPCG06Q10/04G06Q10/06313G06Q10/067G06Q30/0206G06Q50/06H02J3/008H02J2203/20Y04S50/14
Inventor 蒋燕段睿钦朱欣春李秀峰刘双全邵其专吴洋周彬彬赵珍玉苏向阳
Owner YUNNAN POWER GRID
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