基于区块链的配电侧多微电网电能去中心化交易模型  

Energy Decentralized Transaction Model of Multi-microgrid in Distribution Side Based on Blockchain

作　　者：马腾 刘洋[1] 许立雄[1] 陈涛[1] MA Teng;LIU Yang;XU Lixiong;CHEN Tao(College of Electrical Engineering,Sichuan University,Chengdu 610065,Sichuan Province,China)

机构地区：[1]四川大学电气工程学院,四川省成都市610065

出　　处：《电网技术》2021年第6期2237-2245,共9页Power System Technology

摘　　要：配电侧多微电网小量、频繁的电能交易使得传统集中交易模式的运行成本增高、效率降低、安全风险增大。为此,基于区块链技术,提出去中心化的配电侧多微电网电能交易模型。首先,精细阐述了配电侧多微电网电能交易与区块链技术的契合度,并给出搭建交易平台和部署合约的具体方法。其次,为保证参与主体的利益,同时提高交易匹配效率,在智能合约中嵌入双向拍卖定价机制,并提出能够根据市场变化及时调整的自适应进取值方法。再次,为维护配电网的安全运行,针对潮流约束和电压偏移问题设计了适用于智能合约的动态约束法。最后,通过以太坊网络Ganache客户端搭建了一个实际可运行的电能交易平台,算例与分析表明所提交易具有可行性和有效性。The small amount and frequent energy transactions of multi-microgrids in the distribution side make the operating cost increased,the operating efficiency reduced,and the security risk enlarged in the traditional centralized transaction mode.Therefore,this paper proposes a decentralized multi-microgrid energy transaction model in the distribution side based on the blockchain technology.Firstly,the integration degree of the multi-microgrid energy transaction in the distribution side and the blockchain technology is demonstrated elaborately,and the specific methods for building a transaction platform and deploying the contracts are given.Secondly,in order to ensure the interests of the participants and improve the efficiency of transaction matching,a double auction pricing mechanism is embedded in the smart contract,and an adaptive aggressiveness value method that can be adjusted timely according to the market changes is proposed.Thirdly,in order to maintain the safe operation of the distribution network,a dynamic constraint method for the smart contract is designed for the problem of power flow constraint and voltage shifting.Finally,a practical and operational energy transaction platform is built through Ganache client of Ethereum network.The example and analysis show that the proposed transaction is feasible and effective.

关 键 词：智能合约 去中心化交易 双向拍卖机制 动态约束 

分 类 号：TM73[电气工程—电力系统及自动化]