Blockchain-based privacy protection scheme for smart park multi-energy fusion system

摘要

In order to alleviate the increasing pressure on the environment and resources, the energy Internet that supports the efficient use of renewable energy has attracted widespread attention, and the energy system of the smart park led by "energy + Internet" has become an important part of the realization of the energy Internet. In the multi-energy fusion system of the smart park, the power grid obtains nearly real-time power consumption data on the user side through smart meters, so as to draw a portrait of the power consumption of the entire park and formulate dispatching strategies. However, this near-real-time electricity consumption data easily reveals the user's electrical appliance usage status, exposing the user's home behavior. This paper proposes a block chain-based privacy protection scheme for the smart park multi-energy fusion system. Through the distributed gradient descent algorithm, the grid can obtain the load change function of the park without knowing the power consumption of each user. behavior. In order to solve the security bottleneck in the process of load function prediction—the vulnerability of the central node, we adopted block chain technology to achieve decentralization, and through an improved block consensus algorithm to encourage users to actively participate, and improve the security of the entire system At the same time, the efficient operation of the energy-using system is guaranteed.