区块链技术在绿色节能城市轨道交通的应用

Green and Energy-Saving Research for Urban Rail Transit System Based on Blockchain Technology

作为城市建筑的重要组成部分,城市轨道交通是城市碳排放的重要来源,将新能源接入城市轨道交通,实现新能源就地消纳和全系统节能降耗是当前城市轨道交通用能精细化、绿色化和智能化的重要历史使命。新能源接入后城市轨道交通后,要践行绿色节能理念,其本质上要实现新能源发电站、储能电站、列车和变电所等多建筑设备之间的能量灵活协同交互。为了实现上述目标,文章提出了基于区块链技术的多建筑设备之间能量协同调控。依据多建筑设备能量交互特性,结合区块链技术的特点,研究了区块链技术在城市轨道交通能量调控中的应用。首先,在分析多建筑设备能量流时空耦合特性的基础上,构建了包含变电所层级“私有链”和变电所、列车之间“公有链”的物理—信息—区块链三层能量调控架构;其次,依据能量调控模型,构建了多建筑设备能量调控博弈协商策略与基于奖惩机制的能量调控激励策略;最后,构建了基于质询—应答模式的智能合约模型,对能量精准、可靠、快速和去中心化调控,实现城市轨道交通低碳绿色用能。

As an important component of urban architecture,urban rail transit system is an important source of urban carbon emissions.Realizing the local consumption of new energy and saving the energy and reducing consumption in the whole system by connecting new energy into the urban rail transit system is an essential historical mission for the refinement,greening and intelligence of energy consumption of urban rail transit.After new energy is connected into the urban rail transit system,to practice the green energy-saving concept,the essence is to realize the flexible and cooperative energy interaction among building equipment,including new-energy plants,storage plants,trains and substations.To achieve the above goals,the paper proposes a block chain-based energy regulation strategy among building equipment.According to the energy interaction of building equipment and the characteristics of block chain technology,the paper studies the application of block chain technology in the energy regulation of urban rail transit system.First,based on the spatiotemporal coupling characteristics of energy flow among building equipment,the three-layer analysis model of“physics–information–block chain”for energy coordination is constructed,including the“private chain”at the substation level and the“public chain”among substations and trains.Secondly,based on the energy regulation model,an energy game negotiation strategy and a reward-punishment mechanism-based energy incentive strategy for building equipment are constructed.Finally,an intelligent contraction mechanism based on the question-response mode is proposed to realize accurate,reliable,fast and decentralized energy regulation,and to realize the low-carbon and green energy consumption of urban rail transit system.