| 引用本文: | 许伦,王蓓蓓,李雅超,许洪华,刘少君,朱红.配电网安全导向的分布式资源P2P区块链交易机制研究[J].电力自动化设备,2021,41(9): |
| XU Lun,WANG Beibei,LI Yachao,XU Honghua,LIU Shaojun,ZHU Hong.Reaearch on P2P blockchain transaction mechanism of distributed resources oriented by distribution network security[J].Electric Power Automation Equipment,2021,41(9): |
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| 摘要: |
| 配电网中分布式可再生能源的持续增加以及以区块链为代表的分布式记账技术的快速发展，为配电网展开去中心化的点对点(P2P)交易提供了发展动力和技术支持，然而持续增多的分散P2P交易可能导致节点电压越限、系统网损增加等问题。为此提出一种以配电网安全为导向的分布式资源P2P交易机制。首先，基于配电网节点电压和系统网损的线性化推导，提出一种P2P交易对于配电网安全影响的灵敏度模型，从而将传统高低价匹配的交易撮合策略修正为以配电网安全为导向的P2P交易策略；然后，基于以太坊平台运算能力的限制提出具有简单运算特性的去中心化的交易机制，并设计了相关智能合约。算例分析表明，所提出的以配电网安全为导向的P2P交易机制，可以在交易撮合过程中有效反映P2P交易对配电网运行的影响，能够根据电网安全裕度水平优化交易次序，撮合更多有利于配电网安全运行和降低网损的交易达成，并且交易模型复杂度低，可以实现链上求解，不需要链下配置优化软件，避免了隐私泄露。 |
| 关键词: 配电网安全 P2P 网损 电压越限 智能合约 隐私保护 |
| DOI：10.16081/j.epae.202109045 |
| 分类号:TM73 |
| 基金项目:国家电网公司科技项目(泛在物联背景下主动配电网电压控制深度强化学习策略研究) |
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| Reaearch on P2P blockchain transaction mechanism of distributed resources oriented by distribution network security |
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XU Lun1, WANG Beibei1, LI Yachao1, XU Honghua2, LIU Shaojun2, ZHU Hong2
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1.School of Electrical Engineering, Southeast University, Nanjing 210096, China;2.Nanjing Power Supply Company, State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 210019, China
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| Abstract: |
| The continuous increase of distributed renewable energy resources in distribution network and the rapid development of distributed accounting technology represented by blockchain provide development motivation and technical support for the decentralized P2P(Peer-to-Peer) transactions in distribution network. However, the continuous increase of P2P transactions in distribution network may lead to the problems such as the overlimit of node voltage and the increase of network loss. In view of this, the P2P transaction mechanism of distributed resources oriented by distribution network security is proposed. Firstly, based on the linearization derivation of the node voltage and network loss of distribution system, a sensitivity model of the influence of P2P transactions on distribution network security is proposed, and thus the traditional high-and low-price matching strategy is modified to the P2P transaction strategy oriented by distribution network security. Then, based on the computing limitation of the Ethereum platform, a decentralized transaction mechanism with simple computing characteristics is proposed, and the relevant intelligent contracts are designed. The example analysis shows that, the proposed P2P transaction mechanism oriented by distribution network security can effectively reflect the influence of P2P transactions on the operation of distribution network in the matching process, and optimize the transaction order according to the level of power network security margin. It makes more transactions matched, which is conducive to the safe operation of the distribution network and reduce the network loss. The transaction model has low complexity and can be solved on the chain, without configuring optimization software under the chain to avoid privacy disclosure. |
| Key words: distribution network security peer-to-peer network loss voltage overlimit intelligent contract privacy protection |
