Research and implementation of power distribution systyem security protection technology based on blockchain

Smart grids are gradually becoming popular, but itself, especially its power distribution grids, faces many security issues, and false data injection is one of the most attack that happens. Blockchain is considered a key technology for protecting IoT due to its decentralization, non-deformable and high scalability. However, the current blockchain technology costs lots of resources storing and producing blocks, it cannot be directly applied to the power distribution grids with a large number of resource-limited nodes. Therefore, this paper proposes historical chain compression, and then modifys the DPOS and applies it to the blockchain, which help reduce the storeage burden and improve the effiiciency of block producing.