基于区块链的分布式电能交易系统技术研究  

Research on the technology of distributed energy trading system based on blockchain

作　　者：徐剑利 赵勇[1] 连义成 Xu Jianli;Zhao Yong;Lian Yicheng(Huazhong University of Science and Technology,Wuhan 430000)

机构地区：[1]华中科技大学,武汉430000

出　　处：《电气技术》2020年第10期7-14,共8页Electrical Engineering

基　　金：国家电网公司重点科研项目(5400-202022113A-0-0-00)。

摘　　要：随着用户环保意识增强以及配网侧新能源接入比例提高,分布式电能交易逐步得到重视。现行的“余电上网”方式不适应分布式的网络结构,不利于分布式发电的推广。因此,本文提出一种基于区块链的分布式电能交易系统,可实现高效、安全、去中心化的电能交易。首先构建了“产-售-输”一体的技术体系,指出了体系中的难点;然后设计了基于智能合约及连续双边拍卖的交易模式;最后基于委托权益证明改进了共识算法。实验结果表明,相对“余电上网”方式,本文提出的交易模式使得买卖双方的经济效益得到显著提升,且改进的共识算法有效遏制了恶意节点作恶。With the increasing environmental awareness of users and the increase in the proportion of clean energy access on the distribution network side,electrical energy transactions in distributed micro-grids has gradually been paid attention.The current"surplus electricity sold to the grid"method does not adapt to the distributed network structure.This situation is not conducive to the promotion of distributed generation.Therefore,this paper proposes a distributed energy trading system based on blockchain,which can achieve efficient,safe and decentralized energy trading.First,the whole system of"production-transaction-transmission"is built,and the difficulties in the transaction are pointed out.Then a transaction model based on smart contracts and continuous double auction is designed.Finally,the consensus algorithm is improved based on delegated proof of stake.Experimental results show that this transaction model has significantly improved the economic benefits of both buyers and sellers compared to the"surplus electricity sold to the grid"approach.And the improved consensus algorithm effectively restrains malicious nodes from doing evil.

关 键 词：分布式电能 区块链 智能合约 连续双向拍卖 

分 类 号：TM73[电气工程—电力系统及自动化] TP311.13[自动化与计算机技术—计算机软件与理论]