Optimal Scheduling Of Integrated Energy System Under The Background Of Dual Carbon

In order to deal with climate and environmental problems,China has formulated the strategic goal of "carbon peak,carbon neutral",and low-carbon environmental protection has become the inevitable trend of energy utilization.Integrated Energy System(IES)integrates multiple forms of energy such as electricity,gas,heat and cold.Through multi-energy coupling and complementation,it can realize the cascade and efficient use of energy,which has attracted widespread attention.However,in the study of IES optimal scheduling,there are still problems that are difficult to give full consideration to the environment,economy and multiple market entities.Therefore,in this context,based on the carbon trading mechanism,integrated demand response(IDR)and multi-market entities,this paper studies the optimal scheduling of low carbon economy of IES.The specific research work is as follows:First of all,the basic concept and research background of IES are introduced,and the development history of IES at home and abroad,low carbon economic dispatch research,electricity to gas technology,IDR technology and game theory are reviewed respectively.Secondly,the basic structure of IES is described,and IES is divided into three parts,i.e.,the energy supply side,the energy conversion side,and the user demand side.The mathematical models of the main equipment are established respectively,which lays the foundation for the following study of optimal scheduling strategy.Secondly,the IES low-carbon economic dispatch strategy considering the characteristics of electricity to gas and load flexibility under the carbon trading mechanism is proposed.A stepped carbon trading mechanism,a two-stage,multimodule P2 G and a mathematical model of flexible electricity,heat and cooling loads are established and incorporated into the framework of system optimal scheduling.Considering the carbon transaction cost,operation cost,load response cost and penalty cost of wind/light curtailment,the optimal scheduling model of IES with multi-energy coupling and multi-objective coordination is established.By setting different scenarios,the effectiveness and superiority of the proposed strategy are further verified,which has important reference value for the optimal scheduling of the system in actual operation.Finally,in order to further study the interests of multiple market players in IES,a comprehensive energy system low-carbon economy optimal scheduling strategy is proposed,which is based on multi-agent master-slave game under the carbon trading mechanism.A multi-stakeholder low-carbon economic mechanism with energy management operator as the top leaders and energy generation operator,energy storage operator and users as followers was constructed.The differential evolution algorithm was used to nest the CPLEX solver to solve the problem,and the multi-agent collaborative optimization was realized.The effectiveness of the strategy was verified by case studies.