Building-side integrated energy system optimization scheduling method based on building heat energy flow

Abstract

The invention discloses a building side integrated energy system optimization scheduling method based on building heat energy flow. The method comprises the following steps: building a building heat load model based on building heat energy flow analysis; according to the thermal load model of the building, establishing a multi-objective optimization model with the goal of maximizing the total energy efficiency and minimizing the energy consumption cost of the building-side integrated energy system; solving the multi-objective optimization model by adopting double-layer optimization when the overall energy efficiency of the upper layer is maximum and the operation cost of the lower layer is minimum to obtain an optimization result; and scheduling and operating the building-side integrated energy system according to an optimization result. According to the method, the heat load model of the building is established based on the heat energy flow of the building, the energy consumption model of the physical level of the building can be described more accurately, the upper-layer and lower-layer targets are set, consideration is comprehensive, the optimization result is more accurate, and the solving method occupies less memory, consumes short time and is more objective and efficient.

Description

technical field [0001] The present invention relates to the technical field of power system optimization scheduling, and more specifically relates to a building-side integrated energy system optimization scheduling method based on building thermal energy flow. Background technique [0002] As a typical smart energy system, the integrated energy system can promote the in-depth integration of source, network and load, and improve the utilization rate of renewable energy. With the continuous increase of the total number of buildings in China and the continuous improvement of living comfort requirements, building energy consumption has shown a sharp upward trend. At present, it ranks with industrial energy consumption and transportation energy consumption, and has become one of the three "large energy consumers" in my country's energy consumption. Building energy conservation is imminent. Efforts must be made to increase the proportion of electric energy in the terminal multi-e...

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Problems solved by technology

[0004] For comprehensive energy users on the building side, due to the wide variety of terminal energy-consuming equipment and diverse load requirements, the lack of an optimized scheduling platform on the overall structure leads to low overall energy efficiency and a large amount of energy waste

The current existing research often ignores the multi-time scale differences among building energy supply system electricity, cooling, and heating. For the modeling of the building itself, a single-story simple model is usually used, and the heat storage characteristics of the building are not fully considered. , the optimization result is not accurate, and the joint optimization goal of the multi-energy joint supply building system is not clear

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