Blockchain Technology for Distributed Energy Scheduling Method of District-Level Integrated Energy System
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摘要: 针对园区级综合能源系统分散式能量交互模式存在的参与主体不忠诚,外部攻击的问题,结合区块链技术的特点、结构和类型,分析了区块链技术在综合能源系统能量交互中应用可行性。以各运营商运营成本最小为目标,成本增量为一致性变量,利用区块链技术中的智能合约、分布式记账以及数字签名,提出了基于区块链技术的综合能源系统分散式能量交互方法,建立起能量交互双层结构。在物理层上,建立了基于拉格朗日乘子法的分散式能量交互模型,在信息层上,建立了基于区块链技术的信息传递构架。通过算例验证,该方法保障了园区级热-电综合能源系统分散式能量交互过程的公平公开和安全可靠。Abstract: For the problems of disloyalty and external attacks in the distributed energy interaction mode of the integrated energy system of district level, combined with the characteristics, structure and types of blockchains, the application feasibility of blockchain technology in the energy dispatch of the integrated energy system is analyzed. The paper proposes a distributed energy scheduling method for an integrated energy system applying blockchain technology, and establishes a two-layer structure of energy interaction, with the goal of minimizing the operating cost of each operator, and the cost increment value as a consistent variable, combining smart contracts, distributed accounting and digital signatures of blockchain technology. A decentralized energy scheduling model based on the Lagrange multiplier method on the physical layer of the structure, and an information transmission framework based on blockchain technology on the information layer are established. The method is verified through calculation examples, which guarantees the fairness, openness, safety and reliability of the distributed energy dispatch process of the heat-electricity integrated energy system of district level.
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