V2G network cross-domain transaction security method based on block chain

Abstract

The invention discloses a V2G network cross-domain transaction security method based on a block chain. The method comprises the following steps: step 1, an electric vehicle registers in a trusted mechanism; step 2, when the A-domain electric vehicle EVA accesses the A-domain power grid, a region management center RA inquires the Hash values of the identity and the certificate on the block chain, and when the inquiry result passes, the electric vehicle EVA is allowed to access the A-domain power grid; and step 3, before the A-domain electric vehicle EVA enters the B-domain access power grid, cross-domain trust transfer is carried out through the block chain, and a V2G cross-domain authentication process is completed. According to the method, the characteristic that the block chain technology is not easy to tamper is utilized, the Hash algorithm is used for verifying the certificate, the signature and verification times of the public key algorithm are reduced, and the method is high in efficiency and high in expandability. The introduction of the block chain technology provides a new thought and method for solving the security problem of the smart power grid.

Description

technical field [0001] The invention relates to a block chain construction method for business transaction settlement of a smart networked V2G system, in particular to a block chain-based V2G network cross-domain transaction security method. Background technique [0002] With the vigorous development of the smart grid, electric vehicle access to the grid (V2G), as a key service in the smart grid, is rapidly emerging. V2G technology not only solves the charging pressure problem brought about by the large-scale development of electric vehicles, but also connects electric vehicles to the grid as mobile and distributed energy storage units for peak shaving and valley filling, emergency security, and spinning backup. However, because the V2G network satisfies real-time two-way communication, it may face challenges from various insecure factors during the interaction process between electric vehicles and the power grid, which has become a major obstacle to the development of V2G n...

AI Technical Summary

Problems solved by technology

However, because the V2G network satisfies real-time two-way communication, it may face challenges from various insecure factors during the interaction process between electric vehicles and the power grid, which has become a major obstacle to the development of V2G networks.

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