Blockchain-Enabled Transactive Energy Management In Industrial Park:Mechanism,Model,and Method

With the increasingly mature distributed energy technology and the increasing penetration rate,there will be a large number of independent decision-making energy producers and consumers in the industrial park,which brings great challenges to the traditional centralized management method of the industrial park.The proposal of the State Grid’s "Ubiquitous Electricity Internet of Things" construction strategy and the decision of the Political Bureau of the Central Committee of the Communist Party of China on the development of the core technology of the blockchain point out the solution to the above problems.As a new database technology with core features such as information symmetry,security and transparency,traceability,and contract execution automation,blockchain has unique advantages in supporting massive distributed new energy user information sharing and co-construction.Aiming at the issue of park energy management,this paper proposes a blockchain-based mechanism,model and method,which mainly includes the following three aspects:A blockchain-based energy trading method for parks.Most of the current research on distributed energy trading based on blockchain integrates all energy producers and consumers into a completely open and transparent market system based on complex auction algorithms,ignoring the situation that some small and micro users have no willingness and ability to participate in market transactions.The auction algorithm is not applicable to the current state of electricity marketization in China,and complete openness and transparency are not conducive to the healthy development of the market.Considering the construction of industrial parks and the degree of power marketization in China in the short term,this paper first proposes a power consumption agreement model for power sales companies to help small and micro users choose a power sales company and sign the power consumption agreement that best suits them.Secondly,a multi-channel model and method of offline negotiation and online transaction based on the blockchain are proposed to simplify the power transaction process between electricity sales companies,large users,and distributed power generation,and to protect the key data of market transactions.At the same time,a digital certificate is used to issue a verification mechanism to add an access mechanism to the electricity trading market to meet regulatory needs.Finally,a corresponding energy trading system was developed based on the hyperledger blockchain,and the effectiveness of the mechanism was verified.Management method of park charging station based on energy blockchain.With the further development of China’s industrial parks and the continuous maturity of the electricity trading market,the park’s energy management needs more flexible and time-efficient mechanisms.To this end,this article selects the park’s electric vehicle charging control issues,and proposes a blockchain-based Charging right trading mechanism,model and method.In the first stage,the charging right is initially allocated according to the capacity margin of the transformer and the charging requirements submitted by each charging station on the blockchain to ensure that the total charging power does not exceed the limit in a fair distribution manner.;In the second stage,charging stations conduct charging rights transactions on the blockchain-based two-way auction and P2 P trading market.Each charging station determines the level of the offer based on whether the charging willingness is strong and the charging load is flexible.The marketoriented distribution of charging rights takes into account,as far as possible,the differences in the charging willingness of charging stations.This method can ensure the transparency and supervisability of the transaction mechanism,the security of settlement between participants,solve the problem of trust between users,and maximize the optimization and configuration of charging rights.Cross-chain interaction protocol based on relay chain.From a longerterm perspective,when blockchain technology is deeply integrated with the park’s energy management processes,energy management and charging collaborative management services in different parks choose different factors due to transaction speed,information disclosure,and transaction security.The underlying technology of the blockchain is likely to cause a new round of "information islands" : users on different blockchains cannot prove their power assets,access credentials,transfer records and other information to other parks in cross-park energy transactions It is true and effective,and it is impossible to prove the authenticity and reliability of its charging rights,account assets,and transfer information to other parks in the collaborative management of multi-zone charging.This phenomenon will hinder the expansion of the park’s energy management scope and quality,and is not conducive to energy blocks Flourish of chain ecology.Therefore,this paper proposes a heterogeneous blockchain interoperability protocol based on the relay chain.Through the four-phase information transmission verification process,the validity and security of information in the crosschain interaction process are ensured.The practical case of multi-zone charging station management illustrates the necessity and effectiveness of the cross-chain agreement.