Design and evaluation of a cyber‐physical testbed for improving attack resilience of power systems

摘要

power system is a complex cyber‐physical system whose security is critical to itsfunction. A major challenge is to model, analyse and visualise the communicationbackbone of the power systems concerning cyber threats. To achieve this, the design andevaluation of a cyber‐physical power system (CPPS) testbed called Resilient EnergySystems Lab (RESLab) are presented to capture realistic cyber, physical, and protectionsystem features. RESLab is architected to be a fundamental platform for studying andimproving the resilience of complex CPPS to cyber threats. The cyber network isemulated using Common Open Research Emulator (CORE), which acts as a gateway forthe physical and protection devices to communicate. The physical grid is simulated in thedynamic time frame using Power World Dynamic Studio (PWDS). The protectioncomponents are modelled with both PWDS and physical devices including the SEL Real‐Time Automation Controller (RTAC). Distributed Network Protocol 3 (DNP3) is used tomonitor and control the grid. Then, the design is exemplified and the tools are validated.This work presents four case studies on cyberattack and defence using RESLab, where wedemonstrate false data and command injection using Man‐in‐the‐Middle and Denial ofService attacks and validate them on a large‐scale synthetic electric grid.