Event-Triggered Active Disturbance Rejection Control for Interconnected Power Systems Subject to Hybrid Cyber Attacks

In recent years, as renewable energy sources are connected to the grid, the power system continues to expand, making the communication network of power system suffer from communication channel congestion, cyber attacks. In this paper, the proposed event-triggered active disturbance rejection controller (ET-ADRC) is simulated, verified and quantitatively analyzed for two different scenarios of denial-of-service (DOS) attacks, false data injection (FDI) attacks in a multi-area load frequency control (LFC) power system in a three-area power system. The simulation results show that the event-triggered active disturbance control has smaller overshoot, shorter dynamic regulation time, fewer event triggers, and stronger anti-disturbance performance in the three-area load frequency control system than the event-triggered PI (ET-PI), so the ET-ADRC exhibits more bandwidth saving and anti-cyber attack capability in the multi-area load frequency control than the ET-PI. It demostrates the superior performance of load frequency control in multi-area power systems.