engleski

Usage of Bode Plots for Synthesis of Servo Controller Parameters According to the Peak Overshoot of the System Response

Groups of curves for determination of phase margin and normalized peak overshoot instant of the closed-loop system response are obtained by using open-loop system Bode plots and computer simulations. These curves are worked out for the second-order and third-order servo systems designed according to the technical and symmetrical optimum. Analysis of the curves has yielded approximate relations which may be used for the determination of phase margin from the peak overshoot value and the peak overshoot instant from the gain crossover frequency and peak overshoot. The approximate relations werer applied to the synthesis of PI controller parameters in the cascade angular velocity control system of a dc motor drive.

controller synthesis, PID control, speed control

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