A Grid Connection Mechanism of Large-scale Distributed Energy Resources based on Blockchain

Distributed energy resource (DER) will become the main primary energy in the future Smart Grid. However, it is impossible for DERs to connect to the grid freely and reliably through traditional technology such as micro grid or virtual power plant. As a new distributed computing paradigm, blockchain has the characteristics of security, transparency and decentralization. Consider these characteristics, this paper proposed a blockchain based virtual power plant model for DER's grid connection. The coordinated control method of virtual power plant and the independent grid connected behavior of DERs are organically linked by the incentive mechanism of blockchain, realizing the distributed dispatching calculation of virtual power plant. Results of case study showed that the proposed model could not only effectively reduce calculation costs of VPP, but also make grid connection more freely for DERs.