An Iterative Design of PSS4B Stabilizers Using Contoured Controller Bode Plots

This paper proposes an iterative design method for PSS4B stabilizers based on the contoured controller Bode (CCBode) plot. A PSS4B stabilizer is viewed as two filters connected in series: a band-pass filter and a phase compensator. A space searching approach is used to tune the phase compensator which ensures that the phase frequency response of the PSS4B stabilizer is bounded within an acceptable limit; a CCBode plot then helps tune the magnitude frequency response of the band-pass filter so as to achieve a better stability performance over a wide range of frequency band.

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