Energy bidding scheduling method and system based on graph theory

Abstract

The invention relates to an energy bidding scheduling method and system based on a graph theory. The method comprises the following steps: firstly, obtaining input and output power limit data and energy transaction quotation of all users participating in transaction in a period; carrying out transaction priority ranking according to the energy transaction quotation, and constructing a priority ranking list; according to the priority ranking list and the obtained input and output power limit data of the users participating in the transaction, judging transaction feasibility and contructing an initial matrix; searching a feasible energy path according to transaction feasibility, creating a path tree, and generating a path tree sorting list; and carrying out matrix correction to obtain a scheduling instruction. According to the quotation information of the distributed users, the energy supply and demand priority is determined, multi-element energy supply and demand flexible matching in the integrated energy system can be realized, and the transaction demand of a multi-element load subject is met.

Description

technical field [0001] The invention belongs to the field of energy dispatching, and in particular relates to a graph theory-based energy bidding dispatching method and system. Background technique [0002] The current optimal scheduling methods for integrated energy systems can be divided into two categories, namely, centralized methods and distributed methods. Scheduling methods can use the internal communication network of the system to achieve mutual cooperation, which has become a research hotspot in recent years. Commonly used scheduling methods include local equality or inequality constraint methods, and consistent distributed algorithms. [0003] In addition, the existing integrated energy systems often adopt a day-ahead optimal scheduling method centered on the power grid. Although this scheduling method can achieve economical operation of some types of equipment systems to a certain extent, with the distributed energy supply equipment and a large number of availabl...

AI Technical Summary

Problems solved by technology

[0003] In addition, the existing integrated energy systems often adopt a day-ahead optimal scheduling method centered on the power grid. Although this scheduling method can achieve economical operation of some types of equipment systems to a certain extent, with the distributed energy supply equipment and a large number of available With the access of renewable energy, the volatility and randomness of the power supply side and the differences of different types of energy are gradually highlighted. The traditional centralized dispatching method often cannot realize the operation of the system according to the previously planned plan, and the calculation pressure of the dispatching center will greatly increase.

Images