Research On Privacy Protection Of Smart Grid Demand Side

With the continuous development of China's smart grid development process,the demand side of the comprehensive intelligence into the inevitable trend of development,and the information of the intelligent equipment will be automatically transmitted to the data center.In the supply and demand of frequent information exchange between the two sides,if not a good protection of privacy information,then it will cause privacy information disclosure.Once the hostile of the privacy of information analysis or tampering,it may endanger the personal and property safety,and even threaten the safety of smart grid.Therefore,it is extremely important to protect the privacy information on the demand side of the smart grid.This paper presents a smart grid demand side communication architecture with privacy protection,and designs a privacy protection scheme on the demand side of smart grid.This paper first introduces the research background and significance of smart grid demand side privacy protection,and analyzes the current situation of research at home and abroad.The automatic demand response architecture of the smart grid is studied,and the communication security protocol of the smart grid is analyzed.The communication network function in the demand side of the smart grid is mainly focused on the data collection,transmission and processing.In view of this feature,this paper studies the information security requirements of the equipment layer,the transport layer and the application layer,and completes the requirements of the smart grid demand side Design of privacy protection communication architecture.Then,this paper studies and analyzes the commonly used privacy protection scheme.On this basis,this paper proposes a data privacy protection scheme in the demand side of smart grid.The scheme uses ECC(Elliptic Curve Cryptography)algorithm,homomorphic encryption technology and identity authentication aggregation signature technology with high security performance.Aiming at the characteristics of intelligent terminal equipment,an improved ECC algorithm for intelligent terminal equipment with limited resources is studied.The scheme effectively solves the privacy protection problem existing in the data transmission of the demand side of the smart grid.Finally,the security analysis and efficiency analysis of the privacy protection program.The analysis shows that the privacy protection scheme can meet the demandof communication security and efficiency of the demand side of smart grid in theory.In the Linux system Qt simulation environment,the simulation experiments of the scalar multiplication of the ECC algorithm are carried out,and the experimental results are analyzed.In addition,the simulation of the scheme on the NS2 simulation platform further validates the feasibility of the scheme in the demand side of the smart grid.