基于联盟链微电网交易的PBFT共识算法改进  

Improvement of PBFT Consensus Algorithm Based on Alliance Chain Microgrid Transactions

作　　者：张月圆 张春远 王永利 高卓逸 武子豪 ZHANG Yueyuan;ZHANG Chunyuan;WANG Yongli;GAO Zhuoyi;WU Zihao(Inner Mongolia Power(Group)Co.,Ltd.,Hohhot 010010,China;Inner Mongolia Autonomous Region Private Economy Development Promotion Center,Hohhot 010090,China;Inner Mongolia Power(Group)Co.,Ltd.,Ordos Power Supply Branch,Ordos 017004,China;School of Control and Computer Engineering,North China Electric Power University,Baoding 071003,China)

机构地区：[1]内蒙古电力(集团)有限责任公司,呼和浩特010010 [2]内蒙古自治区民营经济发展促进中心,呼和浩特010090 [3]内蒙古电力(集团)有限责任公司鄂尔多斯供电分公司,内蒙古鄂尔多斯017004 [4]华北电力大学控制与计算机工程学院,河北保定071003

出　　处：《内蒙古电力技术》2024年第5期52-61,共10页Inner Mongolia Electric Power

基　　金：内蒙古电力(集团)有限责任公司科技项目“基于互信理论的能源联盟链认证体系关键技术研究”(LX2023-5-11)。

摘　　要：针对联盟链微电网电力交易场景的高吞吐量、高数据安全性及数据透明性的需求,提出一种在贡献值模型下的基于可验证随机函数(Verifiable Random Function,VRF)与基于BLS(Boneh-Lynn-Shacham Threshold Signatures,BLS)门限签名的改进实用拜占庭容错共识算法(Contribution Value Model,Verifiable Random Function and Boneh-Lynn-Shacham Threshold Signatures Practical ByzantineFault Tolerance,CVB-PBFT)。CVB-PBFT算法通过贡献值模型筛选高贡献节点参与共识,采用VRF和安全随机函数选举不可预测的主节点,结合节点轮换和检测机制以及BLS签名优化通信流程,显著提高算法的性能和安全性。经实验证明,该算法能够有效防御恶意攻击,降低通信开销,并提升共识效率,满足微电网电力交易对时效性和安全性的要求。In order to address the needs for high throughput,high data security,and data transparency in the context of alliance chain microgrid transactions,this paper proposes an improved Practical Byzantine Fault Tolerance(PBFT)consensus algorithm under a contribution value model,integrating Verifiable Random Function(VRF)and Boneh-Lynn-Shacham Threshold Signatures(BLS),termed CVB-PBFT.The CVB-PBFT algorithm filters high-contribution nodes for consensus participation using a contribution value model,selects an unpredictable primary node via VRF and secure random function,and significantly enhances performance and security by combining node rotation and detection mechanisms with BLS signature-optimized communication processes.Experimental results demonstrate that this algorithm effectively defends against malicious attacks,reduces communication overhead,and enhances consensus efficiency,meeting the requirements for timeliness and security in microgrid power trading.

关 键 词：微电网 实用拜占庭容错 可验证随机函数 贡献值模型 门限签名 

分 类 号：TM73[电气工程—电力系统及自动化] TP391[自动化与计算机技术—计算机应用技术]