Research On Operation Optimization Of Regional Integrated Energy System Based On Wind Turbine,Photovoltaic,Gas Turbine And Energy Storage

With the large-scale access of user-side equipment resources,the types of demand-side resources and energy demand scenarios are becoming more and more complex,and integrated energy systems have become a new type of energy supply model.and have received widespread attention.At the same time,with the deepening of China’s energy market reform and the promotion of integrated energy services,the regional integrated energy system,as an important development direction of the energy supply system,is playing an increasingly important role in the field of energy supply and demand.In order to achieve the mutual complementarity and coordination optimization of multiple energy sources in a regional integrated energy system,this paper studies the operation optimization of a regional integrated energy system including wind turbines,photovoltaics,CCHP,and energy storage,and builds a RIES operation optimization model based on a double-variable differential evolution algorithm To ensure the economic and efficient operation of the integrated energy system.The main research contents include the following:Part Ⅰ:the structure of the regional integrated energy system and the output model of the energy supply equipment are analyzed.First,the basic concepts and structure of the regional integrated energy system are introduced;Secondly,a basic comprehensive energy system functional equipment mathematical model including a wind power generation model,a photovoltaic power generation model,a combined heat and cold power generation model,and an energy storage device is constructed.Part Ⅱ:the method of optimizing the operation of the regional integrated energy system is studied.First,the operation optimization method of the regional integrated energy system proposed in this paper is summarized,and the main content of operation optimization is introduced;Secondly,study the operation optimization principles and variables of the regional integrated energy system,and clarify the optimization objects through principle analysis;Finally,based on the output characteristics of the existing energy supply equipment of the regional integrated energy system,determine the system power allocation and scheduling strategy,and propose a coordinated operation strategy and operational optimization process for the regional integrated energy system.Part Ⅲ:an RIES operation optimization model based on the double mutation differential evolution algorithm is constructed.First,a multi-objective function for the operation of a comprehensive energy system is constructed,which includes system operating costs,environmental costs,and penalties for abandoning wind and light;Secondly,the constraints of the operation optimization model are set,including the cooling/heating/electricity/air load balance constraints,system equipment operation constraints,environmental constraints,and user comfort constraints;Finally,through the comparative analysis of various optimization algorithms,the double mutation differential evolution algorithm is determined as the solution algorithm in this paper,and the principle and solution process of the double mutation differential evolution algorithm are introduced.Part Ⅳ:the simulation results of RIES operation optimization based on the double mutation differential evolution algorithm are discussed.First,from the system BESS as a backup power source,three different RIES operation optimization scenarios are set,and the system equipment operating conditions under different operation scenarios are simulated and analyzed.Secondly,the results of the above three simulations are comprehensively compared and analyzed,mainly analyzing the output curve characteristics of each energy supply device of the system in three scenarios,as well as the system operating costs and environmental costs,while studying the operating conditions of the system under different energy price trends.