摘要
目前智能电网仍面临着隐私保护不强,安全共享能力差,云中心负载过重等问题。研究以区块链和边缘集群技术为基础,采用分布式文件存储系统与联盟链相结合的方式和多签名公证人技术,实现电力数据的安全共享。结果表明,研究所提数据共享保护方案的CPU占用率平均为5.84%,加解密消耗的时间略多,但具有更高的安全性能;交易频率超过225 TPS后,平均时延快速增加,超出了该方案所能承受的最高交易限额;节点的同步时间小于10 ms,随着储存的电力数据的增加,平均同步时间增幅不大。此次研究提出的数据共享保护方案在保密性和安全性方面具有突出优势,为区块链和边缘集群在智能电网中的应用提供了新思路。
At present,smart grid is still facing problems such as weak privacy protection,poor security sharing ability,and heavy load of cloud center.Based on blockchain and edge cluster technology,the paper adopts the combination of distributed file storage system and alliance chain to realize the effective storage of power data,and adopts multi-signature notary technology to realize the safe sharing of power data.The results show that the calculation cost of the scheme is less than 0.1 s,the total time of encryption and decryption is about twice of the total time of re-encryption and decryption,and the time is slightly more,but it has higher security performance.The scheme can carry out data hiding and data privacy protection,and can prevent malicious tampering and resist attacks.The synchronization time of each node is less than 10 ms,and the average synchronization time will increase with the increase of the stored power data,but the increase is not large,with outstanding advantages in terms of confidentiality and security.This research provides a guarantee for the application of blockchain and edge clusters in smart grids.
作者
肖健
赵芳
李东旭
余胤膛
马迎礼
XIAO Jian;ZHAO Fang;LI Dongxu;YU Yintang;MA Yingli(Guangzhou Power Supply Bureau,Guangdong power Grid Co.,Ltd.,CSG Guangzhou,510000,China;Dongfang Electronics Co.Ltd.,Yantai Shandong 264000,China)
出处
《自动化与仪器仪表》
2024年第8期77-80,85,共5页
Automation & Instrumentation
基金
广东电网股份有限公司广州供电局生产技术改造项目(030108GS62220005)。