Robust Operation and Control of Smart Distribution Grid Under Cyber Threats

This paper proposes an intelligent anomaly detector integrated with droop controllers in Distributed Generators (DGs) for enhancing the system resilience condition during the event of cyber-attacks/threats in the smart distribution grid. Two different droop controllers are considered, among these the P-F controller is utilized by DGs of medium voltage grids and the P-V droop controller is used by DGs in low voltage microgrids. The ANN-based intelligent controller can detect the anomaly/cyber threat information from the DSO/Main Control center or from the individual microgrid control center and can switch the DGs to autonomous operating mode using the P-V/P-F droop controllers and thereby supporting the grid at the time of cyber vulnerability and grid instability condition. The proposed idea is simulated and verified the performance using MATLAB/Simulink.