Blockchain-based Transaction Model of Distributed Photovoltaic Generation for Local Power Consumption

doi:10.11930/j.issn.1004-9649.202004023

Abstract

Abstract: At present, with the growing penetration rate of distributed photovoltaic generation in distribution networks, the application of blockchain is becoming more appealing to the dispatch of distributed energy transactions thanks to its decentralization feature and tamperproof mechanism. This is particularly beneficial for local or nearby energy consumptions, which can greatly boost the operation economy of the distribution networks. A blockchain-based photovoltaic transaction mechanism is proposed, and the benefit function of photovoltaic users and distributed photovoltaic aggregator is established. The Stackelberg game model is applied to determine the internal electricity price, and edge computing is used to work out an optimal power consumption plan. A reputation-based local consumption transaction mechanism is designed, in which penalties will be imposed on those users with low levels of local consumption. Therefore, users are encouraged to consume more photovoltaic power through time-shifting loads. The simulation of a distribution network shows that the local consumption of photovoltaic power has been improved and the users can benefit more under the transaction mechanism of blockchain.

Key words: photovoltaic trading, Blockchain, edge computing, local consumption, reputation value

JIN Kaiyun, YANG Jianhua, CHEN Zheng, WANG Weizhou, HOU Bin, XUE Wenjing. Blockchain-based Transaction Model of Distributed Photovoltaic Generation for Local Power Consumption[J]. Electric Power, 2021, 54(5): 8-16.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202004023

https://www.electricpower.com.cn/EN/Y2021/V54/I5/8

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