Microgrid Dispatching And Transaction Method Based On Energy Block Chain

Microgrid has gradually attracted widespread attention,as an effective means of access to distributed power grid.How to design an efficient and reasonable microgrid scheduling method and trading mechanism is a key issue to realize the reform of power market and the effective allocation of electric energy resources.At the same time,the existing microgrid economic dispatch model has problems such as large renewable energy and load forecasting errors,low information transparency,and high system security risks.As an emerging distributed database technology,blockchain technology has the characteristics of decentralization,transparency,fairness and openness.It can provide distributed,secure,and transparent information systems for the microgrid power market.Therefore,this paper introduces blockchain technology into the operation of microgrid,the main research contents are as follows.First of all,the micro-grid technology and development status and blockchain data structure,type and operation principle are briefly introduced.On the basis of this,combined with the characteristics of micro-grid,the fit of blockchain technology and micro-grid is analyzed.Secondly,this paper constructs an energy blockchain network(EBN)architecture,and proposes a multi-time scale microgrid economic dispatching method based on smart contracts combining EBN and taking into account energy storage and user-side response.This method can fully improve the utilization of renewable energy and the information security of the microgrid system.Thirdly,a smart contract-based microgrid power market trading and regulation model is established without the participation of central institutions.The model uses a bilateral auction mechanism that motivates users to rationally quote.At the same time,the power flow overrun is eliminated by the safety check function before the formation of the electric energy trading order.It guarantees the micro-grid decentralized energy transaction automatic execution,transparent,open,safe and credible.Finally,the feasibility and effectiveness of the economic dispatching method and decentralized energy trading method proposed in this paper are verified by simulation experiments.