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Discussion on Decentralized Electricity Market for Distributed Generation Transactions

1.Energy Development Research Institute, China Southern Power Grid Company Limited, Guangzhou 510080, China;2.School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China

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This work is supported by China Southern Power Grid Company Limited (No. ZBKJXM20170075).

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    With the maturity of renewable energy generation technology and the reduction of installation and operation costs, the distributed generation have been rapidly developed, and a large number of electricity prosumers have been generated. However, due to the characteristics of small capacity, high volatility and scattered distribution, the distributed generation is not suitable for participating in the existing electricity market. Combined with the research of foreign electricity retail market and the current distributed generation trading situation in China, this paper proposes a decentralized electricity market (DEM) mode at the level of distribution network. The framework design of DEM is carried out from the aspects of market definition, participants, trading methods, time scale and clearing methods. Aiming at the problem that the DEM trading platform is difficult to establish, this paper studies the feasibility and transaction realization process of blockchain technology applied in DEM. Finally, from the perspectives of policies, regulations and key points of market construction, the issues to be paid attention to in the construction of DEM are analyzed.

    表 2 公有链、联盟链和私有链特点对比Table 2 Comparison of public blockchain, consortium blockchain and private blockchain
    图1 促进分布式发电消纳的市场机制Fig.1 Market mechanism for promoting the accommodation of distributed generation
    图2 DEM示意图Fig.2 Schematic diagram of DEM
    图3 DEM交易示意图Fig.3 Schematic diagram of DEM transaction
    图4 基于区块链技术的DEM交易示意图Fig.4 Schematic diagram of DEM transaction based onblockchain technology
    表 1 不同市场机制对比Table 1 Comparison of different market mechanisms
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XIAO Qian,CHEN Zheng,ZHU Zongyao,et al.Discussion on Decentralized Electricity Market for Distributed Generation Transactions[J].Automation of Electric Power Systems,2020,44(1):208-218.DOI:10.7500/AEPS20190118004

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  • Received:January 18,2019
  • Revised:August 05,2019
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  • Online: January 04,2020
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