Question: An electromechanical open-loop control system is shown in Figure P2.13. The generator, driven at a constant speed, provides the field voltage for the motor. The

An electromechanical open-loop control system is shown in Figure P2.13. The generator, driven at a constant speed, provides the field voltage for the motor.

The motor has an inertia Jm and bearing friction bm.

Obtain the transfer function θL (s)/Vf (s) and draw a block diagram of the system. The generator voltage vg can be assumed to be proportional to the field current if .Rf Lg Rg R Motor N N Lf Gear ratio n =

Rf Lg Rg R Motor N N Lf Gear ratio n = N2 Vf(s) if Generator FIGURE P2.13 Motor and generator. N (s) Load JL, bL

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