Research On The Privacy Security Of Power Users In Smart Grid

With the widespread use of smart devices in smart grids,power users have become more connected with the information world.The smart grid can support two-way interaction of information flow between the power user and the device.This two-way interaction ensures the real-time transmission of power consumption data based on user requirements.At the same time,the security issues at the user end are becoming increasingly apparent.In the security issue,the leakage of power users' privacy information is closely related to everyone and the performance is particularly prominent.This is a limiting factor for the further development of the smart grid.Therefore,it is of great significance to carry out research on the privacy security of power users in smart grids.This paper analyzes the current research status of power users' privacy security in domestic and international smart grids,it detects the privacy issues that smart power meters may generate and studies these issues.This paper improves the related research methods and proposes a power user privacy protection method based on virtual ring architecture in smart grid.This paper also analyzes the privacy security issues of power users based on demand-response based on incentives,conducts research on the characteristics of privacy protection issues in response to incentive demands,and designs a privacy protection method for power users in IDR.The main research work of this article is as follows:(1)For the classification of the high-frequency and low-frequency users' power consumption data and their security requirements in the smart grid home area network,this paper designs a power user privacy protection method based on the virtual ring architecture in the smart grid.The method uses NTRU encryption system to encrypt power user request data in the smart grid,and then establishes two data transmission paths of high frequency data and low frequency data.Low-frequency data is transmitted outside the virtual ring,and high-frequency data uses dynamic transaction tokens to aggregate user requests,which achieves anonymity within the virtual ring.This method ensures power user privacy and improves transmission efficiency.(2)This paper analyzes the power user privacy security problem based on incentive demand response in smart grid,and establishes a privacy protection model based on data aggregation in IDR.This model defines the communication method between power users and DRP.Based on this model,a privacy protection method based on data aggregation in response to incentives is proposed.In the data transmission process,the aggregation unit will use the homomorphic encryption to perform secure aggregation on the received data to implement user data.Privacy protection.