Multi-micro-grid transaction optimization method and system under credit risk
An optimization method and multi-microgrid technology, applied in data processing applications, finance, instruments, etc., can solve the problems of unfair market, unsatisfactory transaction matching results, and failure to consider the impact of credit level multi-microgrid transactions, so as to improve fairness. performance and reliability, improve energy efficiency, and reduce cost increases
Pending Publication Date: 2021-06-01
SHANDONG UNIV
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Problems solved by technology
[0006] First, it does not consider the characteristics of shorter and more flexible multi-microgrid power transaction cycles, lacks effective credit evaluation for transaction subjects, and needs to study accurate characterization methods for the credit level of multi-microgrid power transaction subjects; second, does not consider credit levels The impact on multi-micro-network transactions, especially the lack of a reasonable description of the relationship between credit risk and transaction optimization model, leads to unsatisfactory transaction matching results, which in turn leads to unfair market
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[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0039] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0040] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0041] Ai...
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The invention provides a multi-micro-grid transaction optimization method and system under credit risk, and the method comprises the steps: calculating the credit level of each micro-grid main body based on the historical transaction information of the micro-grid main body; determining a constraint condition and an optimization target of a multi-microgrid transaction optimization problem under the credit risk, and establishing a transaction optimization model; considering discreteness and continuity of variables, and decomposing the multi-microgrid optimization model into a main problem used for solving a microgrid transaction combination and a sub-problem used for solving a microgrid transaction plan considering credit level uncertainty; and solving the decomposed main problem and sub-problem by using a column and constraint generation algorithm to obtain an optimal transaction plan, and determining the electricity purchasing and selling state and the electric quantity of each micro-grid. According to the method, the economy and fairness of multi-microgrid power transaction can be improved.
Description
technical field [0001] The invention belongs to the technical field of micro-grid operation optimization, and in particular relates to a multi-micro-grid transaction optimization method and system under credit risk. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The dual problems of energy crisis and environmental degradation have prompted countries all over the world to actively develop and utilize renewable energy, which has the advantages of high efficiency, cleanliness, and on-site consumption. Microgrids can integrate various renewable energy sources and energy storage devices, thereby effectively improving Renewable energy utilization efficiency reduces environmental pollution. With the large-scale access of new energy and micro-grid technology, multiple adjacent micro-grids in a certain area are interconnected to form a multi-micr...
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IPC IPC(8): G06Q40/02G06Q40/04G06Q10/04
CPCG06Q40/04G06Q10/04G06Q40/03
Inventor 李歧强宋尚逾李冠冠
Owner SHANDONG UNIV