A Distributed Hierarchy Framework for Enhancing Cyber Security of Control Center Applications.

摘要: Recent cyber-attacks on power grids highlight the necessity to protect critical functionalities of a control center vital for safe operation grid. Even in distributed framework one central acts as coordinator majority architectures. Such can become prime target cyber well physical attacks, and, hence, single point failure lead complete loss visibility If which runs functions computing environment be randomly chosen between available centers secure framework, ability attacker causing reduced great extent. To achieve this, novel hierarchy based is proposed this paper. The ensures that data aggregation and are carried out at random location, incorporates security features such attestation trust management detect compromised agents. A theoretical result proved evolution convergence values protocol. It also shown system nominally robust so long number nodes strictly less than one-half minus 1. For demonstration, Kalman filter-based state estimation using phasor measurements used function secured. framework's implementation feasibility tested hardware cluster Parallella boards. validated simulations IEEE 118 bus system.