| As a key part in the smart grid,smart meters are the key infrastructure connecting smart grid suppliers and power users.In recent years,with the continuous development of applications such as demand response,electricity theft prevention,power quality monitoring,peak-valley time-of-use electricity pricing,and peer-to-peer(P2P)energy trading in smart grids,smart meters have become increasingly popular in grid operation and maintenance.Its role has become increasingly prominent and has gradually become a research hotspot in this field.However,as the carrier of these functions,smart meters have technical problems such as limited computing resources,difficult upgrades,and high upgrade costs,which restrict the further development of smart grid applications to a certain extent.In order to solve the above problems,this paper proposes a container-based digital twin(DT)method for smart meters,which not only expands the computing resources of user-side smart meters,but also solves the above technical problems.First of all,this paper investigates and analyzes the smart grid system architecture,grid applications,and related communication technologies.On this basis,it expounds the potential problems of insufficient computing resources,difficulty in subsequent upgrades,and high upgrade costs faced by user-side smart meters.An in-depth analysis of the development status of smart meters at home and abroad is carried out.Secondly,aiming at the potential problems faced in the application and development of smart meters,this paper proposes a DT method and technical architecture of smart meters based on containers,develops a DT demonstration system of smart meters,and completes the deployment experiment of DT model in the cloud and edge.At the same time,in order to further verify the effectiveness of this method in the real-time application of the smart grid user side,this paper analyzes the DT system from three aspects: the smart grid user-side remote application service,the user-side P2 P transaction,and the user’s real-time request service.The communication performance in the real-time application of smart grid is tested and analyzed.The experimental results show that the container-based smart meter digital twin method proposed in this paper can meet the basic requirements of real-time communication for smart grid user-side applications.Finally,the development direction of the DT method and technical architecture is prospected. |