Example 2.7: Fig. 2.6 shows a motor and load combination. The motor is a permanent magnet DC motor. The load has moment of inertia J and damping coefficient B. The input is voltage V, and output of the system is motor speed oo. Find the transfer function of the motor and load combination of V O R₂ La ia Em T, 0 LOAD J, B

Example 2.7: Fig. 2.6 shows a motor and load combination. The motor is a permanent magnet DC motor. The load has moment of inertia J and damping coefficient B. The input is voltage V, and output of the system is motor speed oo. Find the transfer function of the motor and load combination of V O R₂ La ia Em T, 0 LOAD J, B

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Find the rolling force and its power. The weight of the car is 800 Kg The weight of each person is 75 Kg You may assume any missing parameters you need in the design appropriately (e.g., the rolling-resistance-power, air-resistance-power, the DC motor's parameters, ....etc)
A series motor having a resistance of 1 ohm between terminals drives a fan for which the torque varies as the square of the speed. At 220 Volt the set runs at 300 rpm and takes 25 Amp. The speed is to be raised to 400 rpm by increasing the voltage. Find the terminal voltage for the limiting cases when the field is unsaturated (i.e. flux directly proportional to current)
• A DC shunt machine while running as generator develops a voltage of 250 V at 1000 r.p.m. on no-load. It has armature resistance of 0.5 ohm and field resistance of 250 ohm. When the machine runs as motor, input to it at no-load is 4 A at 250 V. Calculate the speed and efficiency of the machine when it runs as a motor taking 40 A at 250 V. Armature reaction weakens the field by 4 %
1. A PMMC instrument used as an Ammeter has the following details: Resistance of the coil: 20k2, It is connected to a supply voltage of 55 mV, area of the coil 50 mm and a width of 5 cm. The field produced by permanent is of 15mWeb and it is spread for an area of 3mm, and 5mm. A spring is used to imply control torque of 120 x 10 “ Nm on the pointer. Calculate the AT in the moving coil. -6
1: A motor is working at a constant load of 100 h.p. in 5 min. then works at no load for 8 min. after which it works at a constant rate of 50 h.p. for 10 min. Then, a no load period of 3 min. The cycle is repeated indefinitely, estimate suitable size of motor and sketch the load cycle of motor working.
a dc shunt generator supplies a load of 10kW at 250V calculate the induced emf,if the armature resistance is o.5ohm and the shunt field resistance is 100ohm
A shunt generator supply 100A at 200 V. The armature and shunt resistance are 0.025 and 100 ohms respectively. If the copper losses are equal to the iron losses at this load. Find the HP of engine driving the generator. (Our subject is ELECTRICAL MACHINE 1, and our lesson is Losses and Efficiency on the DC MACHINE)
Get the electromechanical analog model (torque-voltage or torque-current) of the system. With all the steps of the analysis
The armature reaction of DC machines is less under no load condition. Select one: O True O False
2.) Two identical dc shunt generators A and B, each having an armature resistance of 0.02 ohm and a field resistance of 100 ohms. The two generators are operated in parallel to supply a common load of resistance 0.1 ohm. Solve the current delivered by A if the induced emfs in the two machines are 500 V and 510 V, respectively. Subject: Electrical Machine 1
Q2: (A) An D.C motor with field control, has R, Lf field winding resistance and inductance respectively, Ef feild voltage, e back emf., J equivalent moment of inertia of the motor and load referred to the motor shaft, f equivalent viscous friction coefficient of the motor and load referred the motor shaft, Tm torque delivered by the motor, i. Drive the transfer function the field voltage. e(s) Tm(s) , where is the angular position and Er is ii. Draw the block diagram for this motor. (B): Obtain the transfer function of the electronic cct. shown in Fig.(2) below ZI C₁ Z2 C₂ R Es) www R₁ E(s) R3 ww Fig. (2) Es)
43. The motor whose torque versus speed characteristics are shown in Figure P2.29 moves the load seen in the diagram. Some of the gears have inertia. Find the transfer function, G(s) = θ₂(s)/Ea(s).