Research On Trading Pattern Of Prosumers In The Ubiquitous Power Internet Of Things

With the continuous development and application of photovoltaic power generation technology,the traditional power consumers on the distribution side have changed into "prosumers",that is,consumers participating in power production.The emergence of prosumers will change the operation mode and trading mode of traditional power system.At present,the market trading mechanism and market operation mode for power consumers to participate in power trading are not perfect.How to balance the interests of all participants through the power market mechanism,and guide prosumers to better adapt to and integrate into the power trading market is an urgent research topic.In order to better guide prosumers to participate in market transactions,this dissertation mainly discusses the following aspects:Firstly,this dissertation introduces the prosumers and their characteristics,analyzes the advantages and disadvantages of the three settlement modes of prosumers’ completely self use,surplus electricity online and full online,and discusses the difficulties of prosumers’ participation in market transactions;In order to build a mutual trust trading environment,this dissertation introduces blockchain technology and analyzes its characteristics,and discusses the applicability of blockchain technology for distributed energy trading.Secondly,aiming at the problems of high threshold,low real-time performance,poor security and low efficiency of post settlement traceability of prosumers in the centralized power trading mode,this dissertation puts forward the transaction framework and transaction process of prosumers market based on blockchain technology.At the same time,in order to improve the trading efficiency of distributed energy and the economic benefits of users,a trading model for prosumers’ group is built based on centralized bidding and competitive equilibrium price.Through the example verification,the proposed model can improve the degree of freedom of electricity trading,meet the decentralized,small-scale,low-cost and economic trading needs of prosumers,promote the local consumption of clean energy,and improve the flexibility of user side resources.Finally,starting from guiding the prosumers to respond to the demand of equilibrium of demand and supply in the distribution network orderly and positively,the potential of demand response of prosumers’ group is analyzed,and a distributed power response model for prosumers’ group to maintain the balance of power supply and demand of distribution network are proposed.Aiming at the problem that the traditional peak valley price can not reflect the supply and demand situation of the prosumers’ group in real time,this dissertation introduces the elastic price model based on the elastic influence weight to guide the user’s electricity consumption behavior by means of price.Through the example verification,the proposed demand response mechanism can effectively improve the power efficiency and optimize the load peak and valley of prosumers’ group.