Load Frequency Control for Power Systems with I/O Time Delays Via Discrete-Time Prediction-Based Event-Triggered Control

The article proposes a prediction-based event-triggered control (ETC) approach for frequency regulation in power systems with input and output (I/O) time delays. The proposed design compensates for the I/O time delays in the system and saves communication channel bandwidth. The idea is designed in discrete-time domain to facilitate greater sampling period and to improve transient behavior. The event-triggering mechanism is used in both the sensor-to-controller and the controller-to-actuator node to saves more communication constraints. Thus, to limit the number of packets sent over a network. The closed-loop system stability is theoretically proved thanks to the concept of uniform ultimate boundedness. The simulation results confirm the efficiency of the proposed design for a single-area power system.