The Discrete Load Frequency Control System Using a Robust Periodic Output Feedback Controller

<div>Power deviation in tie-line Δ<i>P</i><sub>tie12</sub> (p.u.) with respect to time (sec) for without having any PSS, with the continuous PSS, and with the discrete lead-lag-based PSS.</div>

Journal of Electrical and Computer Engineering

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Figure 2

Figure 2: The Discrete Load Frequency Control System Using a Robust Periodic Output Feedback Controller 