一种基于区块链的去中心化数据聚合模型

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中图分类号：TP391.92 文献标志码：A

文章编号：1001-5922（2025）05-0151-04

Abstract：In order to solve the problems of user data privacy leakage and lowsecurityof traditional power system users，a decentralizeddata aggregation model basedon blockchain was proposed.The model appliedthe leader election algorithm to selecta smart meter from the residential area as the mining node to participate inthe blockchain network，and used the Merkle hash treeto perform security authentication and dataaggregation on the smart meter in theresidential area.Pailier encryption，short signature，and SHA-256 technology were used to ensure thetransparency of blockchain data whileachieving multiple privacy protections，which can eectivelydefendagainstthreats suchasreplayatacksandtampering.Intheexperimental stage，theproposed modelwasverified bycalculating theoverheadand communicationoverhead.Theresultsshowed thatcomparedwithother models，theproposed blockchain-based decentralized data aggregation model performed wellin both computational overhead and communication overhead.

Key words ： power system； blockchain ；data security ； privacy leakage ；encryption algorithm

智能电网是一种基于物理电网系统的全自动化输电网络，其有效结合了传感器测量、计算机、信息通信和自动控制等技术[1-2]。（剩余6067字）