Distributed energy system modeling and running optimization method considering hot water pipe network

Abstract

The invention provides a distributed energy system modeling and running optimization method considering a hot water pipe network. According to the method, a new distributed energy system physical model is built, and power and heat combined production and supply are realized in a certain regional range by fully utilizing electric power of a power grid, clean natural gas, high-temperature waste heat and renewable energy sources such as solar energy, terrestrial heat and the like in the nature through connection with the power grid and integration of advanced technologies of a gas turbine, a solar photo-thermal system, a heat pump system, a waste heat boiler, an electric hot water boiler and the like; a system daily running optimization policy containing two layers of optimization models is established, and energy and economic benefits of a system are realized by considering heat consumption of the hot water pipe network, making an energy purchase plan and minimizing energy consumption and running costs in a system running process; and through comparative analysis of the method and a conventional energy supply system, a result shows that the method has the advantages that the energy resources are saved and the economic costs are reduced.

Description

technical field [0001] The invention belongs to the field of energy technology, and in particular relates to a distributed energy system modeling and operation optimization method considering the topological structure of a hot water pipe network and the energy loss in the transportation process. Background technique [0002] Traditional energy systems (such as electric power systems, natural gas systems, and central heating systems) generally adopt centralized single energy production, large-scale, and long-distance energy transmission modes, which not only have low energy utilization efficiency, high transmission costs, and serious energy losses, but also cause serious damage to fossil fuels. Energy dependence is strong, resulting in certain environmental impact. In response to this problem, scholars at home and abroad have carried out in-depth research on distributed energy systems, and proposed that distributed energy systems can be used as a favorable supplement and part...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a distributed energy system modeling and operation optimization method considering the hot water pipe network, aiming to take into account the specific topology of the energy transmission network and energy transmission loss in combination with the actual situation, and solve the problem of distributed energy How to reduce energy consumption and reduce operating costs during the modeling and optimization process of the system

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