The figure below shows the corresponding drum pressure in kPa. The pressure varies by
about 1% of the nominal value even though the disturbance is relatively large.
plot(DrumPressure.time/60,DrumPressure.signals.values)
title('Drum pressure [kPa]');
ylabel('Pressure [kPa]')
xlabel('time [min]')
grid on
bdclose(mdl)
9 Classical Control Design