3. a) Define steady state stability of a motor-drive system. Derive the expression for change in the speed of a motor-dr

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3 A Define Steady State Stability Of A Motor Drive System Derive The Expression For Change In The Speed Of A Motor Dr 1 (419.62 KiB) Viewed 30 times

3. a) Define steady state stability of a motor-drive system. Derive the expression for change in the speed of a motor-drive system following a small disturbance either in the motor side or in the load side. b) What is the difference between steady state and transient stability of electric drive b system? In which case the linearized analysis is valid and why? c) A motor-driven pulley system is carrying a cage of 5 kg at one end of a rope and the other end is counter balanced by a weight of 10 kg. Determine the operating mode of the motor-driven pulley if the cage is loaded with 3 kg and it is desired to move the cage (i) up and (ii) down by the motor. Draw the figure and show the direction of movement (speed) of the motor, the torque directions and the quadrant of operation in these two cases.