Research On Collaborative Optimization Technology Of Regional Integrated Energy System Based On Source-load Characteristic Information

With the development of society and population growth,human production activities continue to increase,and the demand for energy is also increasing day by day.This has caused serious contradictions with the continuous consumption of non-renewable energy on the earth.Therefore,people's exploration of new energy sources and efficient use of energy have become an urgent social issue.In this context,the concepts of energy Internet and multi-energy complementarity have also emerged.In recent years,the interconnection of global power interconnection,regional multi-energy systems and distributed multi-energy systems has gradually become the mainstream implementation of energy Internet.As an important carrier of the energy Internet,the integrated energy system(IES)has become one of the important trends in the development of the energy sector.Compared with traditional forms of energy use,integrated energy systems can form energy cascades through integrated management of energy,improve energy efficiency,increase new energy use,and reduce pollution.This paper mainly studies the operation mode of integrated energy system based on source-load characteristics in integrated energy system,and considers the influence of uncertain factors on the system to improve the reliability,and further realizes the rational planning and coordinated operation of integrated energy system.The main work done in this paper is as follows:(1)Source-load characteristics of integrated energy systemsThe basic equipment at the source end of the park-type integrated energy system are studied.The characteristics and functions of the equipment are analyzed.According to their respective characteristics,a mathematical model that can be used for comprehensive energy system planning is established.Secondly,the load characteristics of the integrated energy system in a typical park are analyzed.Taking the typical parks in the north and south as examples,the load characteristics of various buildings in the park in terms of cold,heat and electricity are exemplified.Finally,through the concept of energy hub,the mathematical relationship between the source and the end of the integrated energy system is established,and the influence relationship between the input and output of the integrated energy system is preliminarily analyzed.(2)Fuzzy stochastic modeling of source load of integrated energy systemFirstly,the concept and application algorithm of stochastic fuzzy theory are introduced and expounded.Based on the analysis of the double uncertainty of the source and the end,the input and output models of the source and the end are transformed into a quadratic fitting and fuzzy modeling method.Become a random fuzzy model.The key values of the random fuzzy model are calculated by the random fuzzy algorithm,and the feasibility of the model is analyzed.(3)Integrated energy system optimization operation scheduling strategyThe paper optimizes the planning and operation of the integrated energy system.Firstly,the integrated energy system operation scheduling model is established,and a system economic model including various influencing factors is established.On this basis,through the particle swarm optimization algorithm,the operation mode of the integrated energy system with the goal of system economic optimization is calculated,and the effectiveness of the integrated energy system operation optimization method is verified.Finally,the random fuzzy model is substituted,and the influence of uncertain factors on the system operation scheduling is analyzed.The reliability and feasibility of the model are verified.