643716.fig.006a
(a) Compensator rating per unit
643716.fig.006b
(b) Compensator rating per unit
643716.fig.006c
(c) Compensator rating per unit
Figure 6: The optimal switching angle as a function of the per unit capacitor initial voltage , for switching each of the four branches , 2, 3 and 4. Plots for three different per unit total compensator ratings are shown. In each plot, the top curve corresponds to , and the bottom curve applies for .