基于多链协同区块链的分布式能源交易

doi:10.12204/j.issn.1000-7229.2021.11.004

电力建设 ›› 2021, Vol. 42 ›› Issue (11): 34-43.doi: 10.12204/j.issn.1000-7229.2021.11.004

• 去中心化能源系统规划、运行与互动交易·栏目主持高红均副教授、徐宪东副教授、胡俊杰副教授· • 上一篇下一篇

基于多链协同区块链的分布式能源交易

玄佳兴¹^,²^,³(), 柳旭⁴, 李国民¹^,²^,³, 孙旭阳⁴

1.国网电子商务有限公司,北京市 100053
2.国网雄安金融科技集团有限公司,河北省雄安新区 071700
3.国网区块链科技(北京)有限公司,北京市 100053
4.北京邮电大学,北京市 100876

收稿日期:2021-06-30 出版日期:2021-11-01 发布日期:2021-11-02
作者简介:玄佳兴(1990),男,硕士,工程师,主要研究方向为区块链、信息安全,E-mail: xuanjiaxing@sgec.sgcc.com.cn;
柳旭(1985),男,博士,工程师,主要研究方向为区块链、工业互联网与大数据应用;
李国民(1980),男,学士,工程师,主要研究方向为区块链、通信网络;
孙旭阳(1996),男,硕士研究生,主要研究方向为人工智能、大数据、区块链。
基金资助:
国家电网公司总部科技项目“新配额制政策下的电力市场体制机制设计和关键技术研究”(1200-202017227A-0-0-00)

Distributed Energy Transaction Based on Multi-chain Collaborative Blockchain

XUAN Jiaxing¹^,²^,³(), LIU Xu⁴, LI Guomin¹^,²^,³, SUN Xuyang⁴

1. State Grid E-Commerce Co., Ltd., Beijing 100053, China
2. State Grid Xiong’an Financial Technology Company, Xiong’an 071700, Hebei Province, China
3. State Grid Blockchain Technology (Beijing) Co., Ltd., Beijing 100053, China
4. Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2021-06-30 Online:2021-11-01 Published:2021-11-02
Supported by:
Science and Technology Project of State Grid Corporation of China“The Design of Power Market System Mechanism and Research on Key Technologies under the New Quota Policy”(1200-202017227A-0-0-00)

摘要/Abstract

摘要：

传统的电力市场交易方式主要是由电力调度交易机构根据市场需求及供需计划,通过集中的方式将发电厂的发电量调度给用电方。随着我国分布式能源的高速发展,并网需求急剧增加,集中调度处理速度成为发展瓶颈。采用分布式能源交易可有效解决此类问题。而区块链具有节点对等、去中心化,数据公开透明等特点与分布式能源交易的诉求相吻合。文章针对分布式能源交易集中调度处理可靠性低,速度慢的问题提出了基于多链协同区块链的分布式能源交易方法。该方法根据地区分片划分从链并行处理交易的方法,解决了采用区块链系统交易速度缓慢的问题。将有用工作量证明机制与电力匹配调度算法有机结合起来,提出了分布式能源交易矩阵策略,在维持了去中心化的同时解决了工作量证明机制算力浪费问题。

关键词: 区块链, 分布式能源交易, 主从多链, 有用工作量证明

Abstract:

The traditional electricity market transaction is mainly that the electricity generated by power plants dispatched to the customers by dispatch agencies in a centralized manner, according to power supply and demand market and plans. With the rapid development of distributed energy and the need for a large number of power sources being connected to the grid, processing speed of centralized dispatching will become a development bottleneck. The use of distributed energy transactions can effectively solve such problems. Blockchain has the characteristics of decentralization, data openness and transparency. In view of the low reliability of centralized dispatching of distributed energy transactions and the bottleneck of processing speed, combined with the characteristics of blockchain, a distributed energy trading method based on multi-chain cooperative blockchain is proposed firstly. According to the partition of regions, this method solves the problem of slow transaction speed of blockchain system. Then, the distributed energy transaction matrix is proposed by combining the useful workload proof mechanism with the power matching scheduling algorithm, which can maintain the decentralization and solve the problem of computing power waste of workload proof mechanism.

Key words: blockchain, distributed energy trading, master-slave multi-chain, proof of useful work

中图分类号:

TM73

玄佳兴, 柳旭, 李国民, 孙旭阳. 基于多链协同区块链的分布式能源交易[J]. 电力建设, 2021, 42(11): 34-43.

XUAN Jiaxing, LIU Xu, LI Guomin, SUN Xuyang. Distributed Energy Transaction Based on Multi-chain Collaborative Blockchain[J]. ELECTRIC POWER CONSTRUCTION, 2021, 42(11): 34-43.

图/表 11

表1 交易系统区块链架构

Table 1 Blockchain architecture of trading system

图1 分布式能源交易系统结构

Fig.1 Structure of the distributed energy trading system

图2 分布式能源交易流程

Fig.2 Flow chart of distributed energy transactions

图3 主从多链模型示意图

Fig.3 Schematic diagram of the master-slave multi-chain model

表2 从链区块交易结构

Table 2 Sub-chain block transaction structure

表3 主链区块跨链交易结构

Table 3 Cross-chain transaction structure of main chain blocks

表4 主链区块存储从链交易结构

Table 4 Main-chain block storage and sub-chain transaction structure

表5 PoUW与常见的共识算法性能对比

Table 5 Performance comparison between PoUW and common consensus algorithms

图4 计算任务流程

Fig.4 Flow chart of calculation task

图5 5节点系统网络连接图

Fig.5 Diagram of 5-node power system

表6 线路功率

Table 6 Power of lines

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基于多链协同区块链的分布式能源交易

Distributed Energy Transaction Based on Multi-chain Collaborative Blockchain

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