一種基于區(qū)塊鏈的去中心化數(shù)據(jù)聚合模型

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中圖分類號：TP391.92 文獻標志碼：A

文章編號：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

智能電網(wǎng)是一種基于物理電網(wǎng)系統(tǒng)的全自動化輸電網(wǎng)絡，其有效結合了傳感器測量、計算機、信息通信和自動控制等技術[1-2]。（剩余6067字）