Application of blockchain for secure data transmission in distributed state estimation

TL;DR

This paper explores integrating blockchain technology with distributed state estimation in smart grids to enhance security and reliability in data transmission amid asynchronous communication scenarios.

Contribution

It introduces a novel blockchain-based communication platform for distributed state estimation, considering asynchronous data transmission in smart grids.

Findings

The proposed method improves security and reliability in distributed state estimation.

Numerical analysis confirms the method meets real-world performance standards.

Blockchain integration enhances data integrity in smart grid communication.

Abstract

The application of renewable energy sources in the power grid increases the necessity of tracking the system's state, especially in smart grids, where there is a bidirectional transfer of data and power. The complexity of coupling between communication and the electrical infrastructure in a smart grid will create a higher chance for security breach. Increasing the state estimation accuracy will help the smart grid operator efficiently manage the system. The paper proposes an integration of distributed state estimation with a blockchain designed communication platform. Additionally, the asynchronous manner for data transmission, which is more likely to happen in the real world, has been considered as the second task of this research. Finally, a detailed analysis of the blockchain-based application in distributed state estimation is provided. The numerical analysis shows that the proposed method meets real-world performance requirements and brings high security and reliability to the distributed state estimation process.