Operation Mechanism and Strategies for Transactive Electricity Market With Multi-Microgrid in Grid-Connected Mode

Under the policy support of electricity market reform and the promotion of microgrids in grid-connected operation mode construction in China, the sales side of electricity market is gradually liberalized. Microgrids are developing rapidly through participating in the electricity market competition....

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Bibliographic Details
Published in:IEEE access 2020, Vol.8, p.79594-79603
Main Authors: Liu, Zifa, Gao, Jianyu, Yu, Hanxiao, Wang, Xinyue
Format: Article
Language:English
Subjects:
cost-benefit model
Distributed generation
distribution network
Electricity
Electricity supply industry
Game theory
Games
Load modeling
Markets
Microgrids
Nash equilibrium
non-cooperative game model
optimal strategies
Power generation
real-time electricity market mechanism
Real-time systems
Renewable energy sources
Shortages
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Summary:Under the policy support of electricity market reform and the promotion of microgrids in grid-connected operation mode construction in China, the sales side of electricity market is gradually liberalized. Microgrids are developing rapidly through participating in the electricity market competition. In order to find the multi-player game relationship of real-time electricity market with multi-microgrid in grid-connected operation mode and provide an incentive for electricity trading among microgrids, we propose a transactive real-time market trading mechanism based on the principle of proportional distribution. Through the analysis of multi-player game in real-time market, we build cost-benefit models of microgrids with power surplus and those with power shortage. Based on the game theory, non-cooperative game models with multi-buyer and multi-seller of microgrids with power surplus and those with power shortage are established. The existence of Nash equilibrium for the game models of microgrids with power surplus and those with power shortage has been proved and the Nash equilibrium is solved to obtain their optimal bid and selling strategies. The feasibility and validity of the proposed mechanism and models are proved through case study. The result demonstrates that all microgrids can obtain the best profits with their optimal strategies.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2020.2990297