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Conceptual analysis and representation of event-triggering mechanism in power system

A conceptual design methodology is proposed for event-triggered based power system control. The event-triggering mechanism is adopted to reduce the communication burden between origin of the remote control signal and the controller location. The remote signal is transmitted to the controller location only when a pre-defined state dependent event-triggering condition, is satisfied. The triggering condition is derived from a stability criterion, and is monitored continuously by a separate event-monitoring unit located at the origin of the remote signal. The stability of the resulting closed loop system is guaranteed via the input-to-state stability (ISS) technique. The proposed event triggered mechanism is implemented on single machine infinite bus test power system. The validation of proposed mechanism is carried out through the simulation studies on MATLAB/Simulink platform. The numerical results show the efficacy of the controller in managing the communication channel usage without compromising the stated system stability objectives.