Interconnected microgrid electric energy transaction and system operation collaborative decision-making method, system and equipment

Abstract

The invention provides an interconnected microgrid electric energy transaction and system operation collaborative decision-making method, system and device, and the method comprises the steps of building a data-driven distribution robust optimization model of a single microgrid based on a given P2P transaction electricity price through employing the minimum operation cost of each microgrid as a target function; establishing a plurality of flexible interconnection microgrid energy management models by taking the minimum total operation cost of all the microgrids as an objective function according to the data-driven distribution robust optimization model of the single microgrid; and converting the multi-microgrid energy management model into a linear programming model, and performing interconnected microgrid electric energy transaction and system operation collaborative decision-making through the linear programming model. According to the invention, three-phase asymmetric operation and power grid operation constraints of the microgrid can be processed, the distribution robust optimization model of the independent microgrid is established, and the operation cost of the independent microgrid is optimized under the condition that the P2P transaction electricity price is given. A novel decentralized electricity price mechanism is designed for P2P electric energy transaction so as to determine the P2P transaction electricity price reflecting the market value.

Description

Technical field[0001]The present invention relates to the field of distributed optimization scheduling in power systems, and more particularly to an interconnected microcarbon electrical energy transaction and system operation collaborative decision making method, system, and equipment.Background technique[0002]Internet microgrid (or micro-network) is usually concentrated by the distribution network operator, with the construction and development of the microgrid, microgrid is often part of different owners, each micro-grid has its own way of operation and management policy. In order to protect the privacy of the microgrid and ensure its autonomy, it is necessary to conduct scheduling management through centralized methods, and studying that the P2P power transaction and system operation collaborative decision making methods are necessary. Normally, the microgrid achieves interconnection through incorporating the local distribution network, but there is a defect. First, if the lines...

AI Technical Summary

Problems solved by technology

Current research usually uses stochastic optimization or robust optimization to deal with uncertainty, but stochastic optimization requires an accurate probability distribution function, which is usually not available in practice, while robust optimization only targets the worst uncertainty Realize the scenario, the result is too conservative

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