面向虚拟电厂的电力调峰市场隐私保护交易策略  

Privacy Preservation Trading Strategy for Power Peak-shaving Market with Participation of Virtual Power Plant

作　　者：左娟 艾芊[2] 王帝[2] 王文博 许崇鑫 ZUO Juan;AI Qian;WANG Di;WANG Wenbo;XU Chongxin(State Grid Shanghai Energy Interconnection Research Institute Co.,Ltd.,Shanghai 201210,China;Key Laboratory of Control of Power Transmission and Conversion,Ministry of Education(Shanghai Jiao Tong University),Shanghai 200240,China)

机构地区：[1]国网上海能源互联网研究院有限公司,上海市201210 [2]电力传输与功率变换控制教育部重点实验室(上海交通大学),上海市200240

出　　处：《电力系统自动化》2024年第18期149-157,共9页Automation of Electric Power Systems

基　　金：国家重点研发计划资助项目(2021YFB2401203)。

摘　　要：为解决虚拟电厂参与的集中式电力调峰辅助服务市场中因交易关键信息、敏感数据泄露而引发恶意竞价、扰乱市场秩序等问题,设计了一种基于“服务提供商-区块链-电力调度控制中心”的集中式市场隐私保护交易策略,实现了隐私保护和网络安全双约束下的电力调峰市场可信交易。首先,设计了基于价格混淆随机预言机和改进Shamir秘密共享网络的竞标信息隐私保护方案,对提交到区块链上的量价信息进行严格保护;其次,基于同态加密技术,以价格、信用值、时间依次优先的原则设计了区块链智能合约,实现了竞标量的隐私排序和可信自动出清;然后,为了实用价值,在区块链上部署安全性校验合约实现了交易结果的网络安全约束校验,保证了配电网的运行安全和服务提供商的结算安全;最后,通过算例分析和评估,验证了该隐私保护交易策略的有效性和优越性,表明了该策略可以在保护参与方隐私的同时,提高电力系统的灵活性和可靠性。To solve the problems of malicious bidding and market disorder caused by key transaction information and sensitive data leakage in the centralized power peak-shaving auxiliary service market with the participation of virtual power plants,this paper designs a privacy preservation trading strategy for the centralized market based on“service provider-blockchain-power dispatch control center”.The strategy achieves trusted trading in the power peak-shaving market under the dual constraints of privacy preservation and network security.Firstly,a bidding information privacy preservation scheme based on the price confusion random oracle and the improved Shamir secret sharing network is designed to strictly preserve the quantity and price information submitted to the blockchain.Secondly,based on homomorphic encryption technology,a blockchain smart contract is designed according to the priority order principle of price,credit value,and time,achieving privacy sorting and trusted automatic clearing of bidding quantity.Thirdly,for the practical value,by deploying security verification contracts on the blockchain,the network security constraint verification of transaction results is achieved,and the operation security of the distribution network and the settlement security of service providers are ensured.Finally,through case analysis and evaluation,the effectiveness and superiority of this privacy preservation trading strategy are verified,indicating that this strategy can improve the flexibility and reliability of the power system while preserving the privacy of participants.

关 键 词：区块链 虚拟电厂 调峰 隐私保护 价格混淆随机预言机 Shamir秘密共享网络 

分 类 号：TM73[电气工程—电力系统及自动化] TP309[自动化与计算机技术—计算机系统结构]