Energy consumption coordination control method for integrated energy system based on virtual energy storage

Abstract

The invention discloses an energy consumption coordination control method for an integrated energy system based on virtual energy storage. The method comprises the following steps: obtaining basic operation parameters of the integrated energy system managed and controlled by different agents; taking the minimization of building operation cost as a target, and constructing an intelligent building-level optimization operation model; establishing a virtual energy storage model; at the agent level, based on the virtual energy storage model of the single building, constructing an optimization target and a constraint condition of an agent-level operation strategy of considering the total agent operation cost of the multiple buildings, and calculating to obtain a virtual energy storage quantizedvalue of each agent; and constructing an optimization target at a multi-agent and distribution network interaction level, determining a target function and a constraint condition of a multi-agent-based regional integrated energy system energy consumption coordination model, and calculating to obtain an optimal solution of integrated energy system energy consumption coordination control based on virtual energy storage. According to the method, various resources of IES of all levels of buildings, parks and the like with the power distribution network as the core are utilized to the maximum extent according to the decision-making target, and the energy utilization requirements of the buildings, the parks and multiple main bodies of the power distribution network are met.

Description

technical field [0001] The invention belongs to the technical field of integrated energy systems, and in particular relates to an energy coordination control method for an integrated energy system based on virtual energy storage. Background technique [0002] The integrated energy system (IES) is a key carrier for the implementation of concepts such as multi-energy complementarity and energy cascade utilization. The emergence of the concept of IES multi-energy collaborative development has promoted the coupling construction and multi-energy coordination between different energy systems. Complementary operation can realize the collaborative optimization of the whole process from source to load, from energy supply to energy consumption, and the whole link, so as to improve the comprehensive utilization efficiency of energy and enhance the flexibility of terminal energy consumption. [0003] IES can be divided into two categories in terms of service objects: one is regional-ori...

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Problems solved by technology

[0004] With the widespread access of distributed energy, grid-connected energy storage, etc. at the levels of building IES and park IES, the traditional building energy system is gradually transforming into a prosumer system with dual characteristics of source-load and multi-energy coupling. Most of the existing research focuses on the IES of a single space level, and there is no effective model to evaluate the external energy characteristics of a single level of IES. In addition, the distribution network as the core of the building, park and other levels of IES have their own different resources. Endowment and energy demand, thus presenting different external energy charging and discharging characteristics, the hierarchical control and resource sharing of multi-level IESs can achieve power mutual benefit, and the literature is now researching on the modeling of energy external characteristics of multi-energy systems and multi-system interaction strategies insufficient

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