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- List some advantages of solid-state control.From the next model (DC motor controlled by armature current), obtain: a) The transfer function G(s) = θ(s)/Vc b) The block diagram c) state-space representation d) The poles and zeros diagramdesign a feedback control system which results in a closed system for the given DC motor that will be given below Damping ratio is 0.6 natural frequency is 10 rad/sec
- Below, in a discrete-time closed-loop control system, analyze the value of the k gain coefficient for stability using the Jurry stability test.What is difference between Open-loop and Close-loop control system? give note on bothFrom the phasor diagram in the figure, deduce a expression for the output power, as a function of the armature current, Ia, and angle γ . Draw the curve Power (P) versus current angle (γ), for different levels of excitement Ef. For this consider negligible mechanical losses.
- A 54-slots, 216 segments has four poles lap armature windings that is equalized 100 per cent at the commutator. a) How many equalizer connections are there? b) To what two segments is the first equalizer be connected?Explain the fundamental differences between open-loop and closed-loop control systems. Provide examples of each and discuss the advantages and limitations of both approaches.What would be the objective of creating a prototype to control the direction of a direct current motor with an H-bridge circuit? In the world of industrial electronics, in what situations is this used? also as a student, how can this help you, for electronic work use?
- #4 What’s Control Machine Feedback? What are its features?SPEED CONTROL OF A DC MOTOR BY FIELD CONTROL A dc shunt motor is taking 20 A from the 220-V source. The field and armature resistances are 110 ohms and 1 ohm, respectively. Find the the value of an external resistance connected series to the field winding that will cause the speed of the motor to double while taking the same amount of current from the source. Draw the schematic of the motor before and after the application of an external field resistance.Suppose a shunt regulator voltage is 250V, the armature current is 30A. field coils are required to provide an MMF of 500AT. The field might typically say 200turns with resistance of 0.5Ohms/turn. Find the dissipated power as heat and total input required and the efficiency