Resiliency assessment methodology for synchrophasor communication networks in a smart grid cyber–physical system

Abstract

The smart grid cyber–physical system (SGCPS) is the latest evolution of the traditional power system. Synchrophasor application in the SGCPS is responsible for wide area monitoring and control of the grid. Its communication network referred to as the synchrophasor communication network (SCN) has to be resilient. The resiliency measures the system’s ability to bounce back to the operational state from the failed state. Despite the maturity of the research on resiliency, it is still sparsely explored for the SCNs in a SGCPS. There is no comprehensive resiliency metric for the resiliency analysis of the SCN. Thus, a comprehensive resiliency metric in the context of the SCNs is presented in this paper. Further, a methodology is also presented for evaluating the resiliency of the SCN. The SCNs are designed for the practical power grid of West Bengal State, India, which have been analyzed for their resiliency using the proposed methodology.

Keywords

• Resiliency
• Smart grid
• Smart grid cyber–physical system
• Synchrophasor communication network
• QualNet