Station Network Planning Of Regional Integrated Energy System Considering Integrated Demand Response And Carbon Trading

In order to solve the fossil energy crisis and global warming,it is imperative to build a regional integrated energy system(RIES)with a low-carbon economy,which is an effective way to promote the transformation of the energy system,helps the low-carbon and sustainable development of the system,and achieves "carbon peaking" and "carbon neutrality".In the context of the vigorous development of the integrated energy system,the realization of systematic low-carbon economic planning is related to the advantages and application prospects of the integrated energy system.At the same time,flexible load participation in demand response can promote multi-energy complementarity,give full play to the flexible regulation and control ability of load-side resources,and play a positive role in the economic and reliable operation of the system.In order to fully mobilize load-side flexible resources,reduce carbon emissions,and improve the reliability and environmental protection of RIES station-network planning,this paper establishes a RIES station-network planning model considering integrated demand response(IDR)and carbon trading based on the two-part diagram theory,and the specific research content is as follows:Firstly,the basic structure of electricity-heat-gas RIES is analyzed,the RIES station-network is modeled,the mathematical model of energy station,multi-energy equipment and energy supply network is established,the coupling relationship and interaction relationship between various energies and the energy conversion process of equipment are analyzed,and the road network model and pipe network layout model based on graph theory theory taking into account road information and load access are established that lay a theoretical foundation for the subsequent research of planning models.Secondly,the connection between the two-part diagram theory and the research object in this paper is clarified,and the RIES station-network planning is abstracted into the two-part diagram model based on the two-part diagram theory of energy stations,and capacity constraints and first-level power supply reliability constraints are considered,and a joint planning model of energy station site selection and capacity and pipe network layout with the goal of minimizing total cost is constructed,on this basis,based on the joint planning results of energy station site selection and capacity and pipe network layout,the multi-energy complementary characteristics of equipment,power balance constraints,energy storage state constraints,climbing constraints and equipment operation constraints are comprehensively considered,and the equipment capacity configuration planning model is established.The model is solved using particle swarm arime and the CPLEX solver.The economy,rationality and power supply reliability of the planning model based on the two-part diagram theory and the P median model planning scheme are compared and analyzed by multiple scenarios,and the results show that the planning model based on the two-part diagram theory can achieve a more economical,reasonable and reliable RIES station-network planning.Finally,in order to fully mobilize flexible resources on the load side,reduce the carbon emission of the system,the demand response characteristics of flexible load are considered on the basis of the above station-network planning model,the mathematical model of transferable load and interruptible load is established,and then the electric-heat-gas IDR model is established,and the concept of reward coefficient is introduced so that the RIES reward and punishment stepped carbon trading mechanism model is established,and the carbon capture characteristics of power-to-gas equipment are calculated to calculate the actual carbon emissions of energy stations.At last,the RIES station-network planning model considering IDR and the reward and punishment ladder carbon trading mechanism is established,the impact of IDR and carbon trading mechanism on RIES station-network planning is compared and analyzed in multiple scenarios,and the effects of different carbon trading benchmark prices,price interval lengths and reward coefficients on the carbon trading mechanism are analyzed,and the reasonableness and effectiveness of the station-network planning model proposed in this paper are verified by example.