基于区块链技术的园区级综合能源系统能量交互

doi:10.12204/j.issn.1000-7229.2021.12.004

电力建设 ›› 2021, Vol. 42 ›› Issue (12): 30-38.doi: 10.12204/j.issn.1000-7229.2021.12.004

• 综合多元能源及信息技术的能源互联网规划与运行·栏目主持刘洋副教授、韩富佳博士· • 上一篇下一篇

基于区块链技术的园区级综合能源系统能量交互

刘玉成¹, 段炼¹, 班晓萌¹, 黄伟², 左欣雅², 张莞嘉²()

1.国网呼伦贝尔供电公司, 内蒙古自治区呼伦贝尔市 021100
2.华北电力大学电气与电子工程学院, 北京市 102206

收稿日期:2020-12-31 出版日期:2021-12-01 发布日期:2021-11-26
通讯作者: 张莞嘉 E-mail:zhangwanjia@ncepu.edu.cn
作者简介:刘玉成(1972),男,硕士,副高级工程师,主要研究方向为综合能源系统规划与控制;
段炼(1987),男,学士,工程师,主要研究方向为综合能源系统规划与控制;
班晓萌(1993),女,学士,助理工程师,主要研究方向为综合能源系统规划与控制;
黄伟(1962),男,博士,教授,主要研究方向为综合能源系统规划与控制,电力系统需求侧响应;
左欣雅(1998),女,硕士研究生,主要研究方向为综合能源系统规划与控制,区块链技术。

Blockchain Technology for Distributed Energy Scheduling Method of District-Level Integrated Energy System

LIU Yucheng¹, DUAN Lian¹, BAN Xiaomeng¹, HUANG Wei², ZUO Xinya², ZHANG Wanjia²()

1. State Grid Hulun Buir Electric Power Company, Hulan Buir 021100, Inner Mongolia Autonomous Region, China
2. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China

Received:2020-12-31 Online:2021-12-01 Published:2021-11-26
Contact: ZHANG Wanjia E-mail:zhangwanjia@ncepu.edu.cn

摘要/Abstract

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。

关键词: 园区级综合能源系统, 分散式能量交互, 区块链技术, 一致性协议, 拉格朗日乘子法

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.

Key words: integrated energy system of district level, decentralized energy interaction, blockchain technology, conformance agreement, Lagrange multiplier method

中图分类号:

TM73

刘玉成, 段炼, 班晓萌, 黄伟, 左欣雅, 张莞嘉. 基于区块链技术的园区级综合能源系统能量交互[J]. 电力建设, 2021, 42(12): 30-38.

LIU Yucheng, DUAN Lian, BAN Xiaomeng, HUANG Wei, ZUO Xinya, ZHANG Wanjia. Blockchain Technology for Distributed Energy Scheduling Method of District-Level Integrated Energy System[J]. ELECTRIC POWER CONSTRUCTION, 2021, 42(12): 30-38.

图/表 8

表1 分散式交互模型中应用区块链的可行性

Table 1 Feasibility of applying blockchain in decentralized interaction model

表2 一致性协议中应用区块链的可行性

Table 2 Feasibility of applying blockchain in consensus protocol

图1 IES能量交互双层结构

Fig.1 Two-layer structure of IES energy interaction

图2 基于区块链的IES能量交互运行构架

Fig.2 Blockchain-based IES energy interaction operation framework

图3 基于区块链的一致性算法流程

Fig.3 Blockchain-based consensus algorithm flow

表3 各节点的运行参数和初始变量值

Table 3 Operating parameters and initial variable values of each node

图4 子系统参数遭遇篡改后的系统运行对比

Fig.4 System operation comparison after subsystem parameters tampered

图5 通信过程遭遇外部攻击时系统运行对比

Fig.5 System operation comparison when the communication process encounters external attacks

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基于区块链技术的园区级综合能源系统能量交互

Blockchain Technology for Distributed Energy Scheduling Method of District-Level Integrated Energy System

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