Distributed Energy Transaction Blockchain Model Considering Reputation Value and Electrical Distance

doi:10.12204/j.issn.1000-7229.2023.02.013

Abstract

Abstract:

Distributed transactions between multiple microgrids can promote the consumption of new energy and improve the safety of distribution network operation. Nevertheless, the problems such as strong individual profit-seeking and output uncertainty may cause serious breaches of contract and affect the economics of distributed transactions. Therefore, this paper puts forward a distributed energy transaction blockchain model considering reputation value and electrical distance. Firstly, the reputation value evaluation model based on the historical contract completion rate is proposed, and the transaction order of buyers and sellers is adjusted according to the quotation and reputation value. Secondly, in order to promote transaction subjects to choose nearby transactions and improve transaction efficiency, a transaction matching mechanism based on electrical distance is designed in smart contracts. And an adaptive quotation update strategy based on market progress and its own reputation are proposed. Thirdly, a real-time dynamic network security checking method is introduced to realize the safety of distribution network operation. Finally, the smart contract is simulated and analyzed with Matlab and IDE-Remix platform, and the results verify the feasibility and effectiveness of the proposed distributed transaction mechanism.

Key words: blockchain, multi-microgrid, distributed transaction, reputation value, electrical distance

CLC Number:

TM73

LI Zhenwei, LIU Yang, XU Lixiong, ZHU Tinghu, LIU Ren. Distributed Energy Transaction Blockchain Model Considering Reputation Value and Electrical Distance[J]. ELECTRIC POWER CONSTRUCTION, 2023, 44(2): 132-144.

Figures/Tables 17

Fig.1 Multi-microgrid distributed energy transaction framework

Fig.2 Schematic diagram of transaction ordering mechanism

Table 1 The process of electrical distance calculation

Table 2 The process of dynamic network security check

Fig.3 The operation process of smart contract

Fig.4 Structure diagram IEEE 33-node system

Fig.5 Transaction matching results considering electrical distance

Fig.6 Transaction matching results without considering electrical distance

Fig.7 Comparison of transaction cost

Fig.8 Reordering results based on reputation value

Fig.9 Comparison of benefit improvement rate

Fig.10 Users' transaction price

Fig.11 Comparison of quote update mechanism

Fig.12 Occupancy ratios of branch flow

Fig.A1 Deployment interface of smart contracts

Table A1 Declaration information of each microgrid

Table A2 Settlement results of market entities in trading

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