Event-Triggered Control Based on Non-Fragile Approach for Load Frequency Problems in Multi-Area Power Systems with Transmission Delays

The paper investigates the design & study of event-triggered control (ETC) based on non-fragile approach for load frequency problems in multi-area interconnected power network with transmission delays. The relationship between ETC systems and non-fragile systems is established and is used to design the event condition. Event parameter, maximum sampling interval and maximum allowable delay bound (MADB) are co-designed by solving the linear matrix inequality (LMIs) to be feasible. The proposed design ensures faster frequency and tie-line power control without compromising with the advantages of ETC mechanism. The closed-loop system stability is theoretically proved by selecting an appropriate Lyapunov Krasovskii functional and verified by simulation for three area power networks in MATLAB 2013a.