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

<div>Tie line power deviation Δ<i>P</i><sub>tie12</sub> (p.u.) with respect to time (sec) for the wind-integrated LFC system having the discrete lead-lag-based PSS and with the POF controller (<i>N</i> = 2, <i>τ</i> = 0.04, and Δ = 0.02).</div>

Journal of Electrical and Computer Engineering

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Figure 10

Figure 10: The Discrete Load Frequency Control System Using a Robust Periodic Output Feedback Controller 