Peer-to-peer Shared Energy Storage Trading Design In Electric Thermal Energy System

With the continuous development of society and the increasing degree of industrialization worldwide,the comprehensive utilization of electric heating energy and new energy has reduced the dependence of society on high-carbon emission energy such as coal and oil,and found new solutions to the increasing shortage of energy and environmental pollution.Electric heating energy system refers to the use of heat energy to reduce the pressure of electric energy and realize the efficient use of energy in energy production,distribution,storage and consumption,which is of great significance to energy design and planning.In the electric heating energy system containing clean energy,the phenomenon of wind and power abandonment occurs due to the flexibility of wind power and photovoltaics,so this paper improves the flexibility of the electric heating system through energy storage system and energy trading,thereby reducing the total cost of system operation and improving energy utilization.Firstly,starting from the balance principle of Electric Heating Energy System(EHES)and the technical principle of shared energy storage,the common electric heating energy equipment and energy storage equipment in EHES architecture are analyzed and modeled,and then the energy storage mode is classified according to the sharing mode,which lays a theoretical foundation for subsequent research on point-to-point energy storage transactions.Secondly,this paper uses the electricity and heat demand response and carbon emission limitation to set up the EHES optimization scheduling scheme in different scenarios,models and analyzes the electric heat demand response,wind power,photovoltaic,etc.,and quantifies the energy consumption parameters,obtains the system regulation cost in different scenarios,obtains the optimal control scheme,analyzes the output of each equipment with the smallest cost and the comparison of carbon emissions.Finally,on the basis of the optimal operation scheme of EHES,the peer-to-peer transaction mode of different energy storage equipment users is considered,the transaction is divided into two modes:energy storage capacity and energy storage energy trading,and the power grid power purchase,energy storage output and energy storage surplus energy of different users are analyzed,and the point-to-point energy storage capacity and energy trading income of different users are obtained through the simulation of the example,which verifies the effectiveness of the proposed scheme in reducing the operating cost of EHES.