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Unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint

A technology of unit combination and acquisition method, applied in data processing applications, forecasting, instruments, etc., can solve problems such as the difficulty in determining the relationship between consumers and specific suppliers, and the mutual restriction of electric energy transactions

Active Publication Date: 2015-05-06
XI AN JIAOTONG UNIV +2
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

That is to say, in the electricity market, it is difficult to determine the relationship between specific consumers and specific suppliers
The influence of the network will also cause the problem of mutual restriction of power transactions in different directions

Method used

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  • Unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint
  • Unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint
  • Unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint

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Experimental program
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Embodiment Construction

[0036] The present invention will be further described below with reference to the drawings and embodiments.

[0037] 1. Expansion of unit output dimension

[0038] How to realize the identification and classification of multi-transaction components is the foundation for the establishment of unit commitment problems considering external power transmission transactions, cross-provincial and cross-regional tie-line transactions, and security constraints.

[0039] Such as figure 1 As shown, the original unit commitment model considering safety constraints is a two-dimensional model, and the unit output in the model is a two-dimensional continuous variable related to time and unit. Specifically, each unit has a power output state for a certain set time length; a certain unit has a power output state for each time period of the research time length.

[0040] When multiple trading components are introduced, the power generated by each unit has the attribute of trading varieties. It can be...

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Abstract

The invention discloses a unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint. The method is characterized in that the transaction plan an operation plan of a power company are treated as the background, a mathematical model facing transaction component is created to solve the problem that the economic characteristics of transaction variety and rules are to be reflected in the power transaction; the optimized target function is that the cost of the power company purchasing out-going power transaction and transprovincial or interregional line transaction is minimized; the constraint conditions include security constraint for the power grid operation, physical constraint for unit operation, and transaction component constraint. With the adoption of the method, the power company considering the transaction variety and rules can prepare the transaction plan and the operation plan, so that the decision-making science and effectiveness can be improved; the power purchase strategy and power purchase cost of the power company can be optimized, and as a result, the lean operation level of the power transaction service can be raised.

Description

Technical field [0001] The invention belongs to the field of unit combination in which the power company considers transaction components and safety constraints, and particularly relates to the formulation of an operation plan considering external power transmission transactions and cross-provincial and cross-regional tie-line transactions. Background technique [0002] Judging from the power marketization reform in recent years, in the process of building a unified power market for regional power grids mainly promoted by the state, due to the influence of various factors such as different economic development levels and different levels of electricity prices in various provinces, the power marketization reform has encountered more problems. With great difficulties and obstacles, the regional grid unified power market is also facing various intricate and acute contradictions in dealing with the coordination of the interests of all parties. At the same time, in order to meet the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/06313G06Q50/06
Inventor 别朝红吕家君范海虹赵彤耿建薛必克郑亚先程海花
Owner XI AN JIAOTONG UNIV
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