Research Article

Stability, Chaos Detection, and Quenching Chaos in the Swing Equation System

Figure 9

Transforming chaotic motion into a period-1 orbit for K = −0.08 and Kf = 0.009: (a) phase portrait of the controlled system; (b) time responses of the controlled system. A state feedback control signal was introduced after 300 s.
(a)
(b)