The parameter values for a certain armature-controlled motor are
KT = Kb = 0.2 N.m/A
c = 5 x 10-4 N.m.s/rad
Ra = 0.8 Ω
La = 4 x 10-3 H
I = 5 x 10-4 kg.m2
Where c and / include the effect of the load. The load torque is zero.
a. Use Simulink to obtain a plot of the step response of the motor torque and speed if the applied voltage is va = 10 V. Determine the peak value of the motor torque.
b. Now suppose that the motor torque is limited to one-half the peak value found in part (a). Use Simulink to obtain a plot of the step response of the motor torque and speed if the applied voltage is va = 10 V.