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RPM tbi Figure 1 Problem 2. (25 pts) For problem 1, find the transfer function betweni...
Question 3: DC motors can be simplistically modeled as shown in Figure 5 MoTor back emf Vi: +1 Re...
Question 3: DC motors can be simplistically modeled as shown in Figure 5 MoTor back emf Vi: +1 Resistor Ra Ia Figure 5: Simplified model of DC Motor (a) Write the three characteristic equations that determine the behavior of the DC motor. Denote torque constant and speed constant as Ka, K, respectively. (b) Motor parameters are the quantities that define the behavior of the motor. List the motor parameters from the described model. What are their units? (c) For given...
B-3-25 Consider the system shown in Figure 3-90. An armature-controlled de servomotor drives a lo...
B-3-25 Consider the system shown in Figure 3-90. An armature-controlled de servomotor drives a load consisting of the moment of inertia J. The torque developed by the motor is T. The moment of inertia of the motor rotor is Jm The angular displacements of the motor rotor and the load element areo,1, and θ, respectively. The gear ratio is 0/6,n. Obtain the transfer function θίη(s)/Eds). Figure 3-90 Armature-controliled de servomotor system.
B-3-25 Consider the system shown in Figure 3-90. An...
The simplified diagram of a DC motor is shown in Fig. 4. Assume that the rotor has inertia m J an...
The simplified diagram of a DC motor is shown in Fig. 4. Assume
that the rotor has inertia m J and viscous friction coefficient Bm.
The torque developed by the motor is assumed to be related linearly
to the field current by , m m f T K i where the motor torque
constant m f a K K K I 1 when the armature current a i is assumed
constant (i.e. ) a a i I...
HomeWork3 Deadline: Tuesday March 31st, 2019 Problem 1: [10 points] Draw the equivalent circuit o...
HomeWork3 Deadline: Tuesday March 31st, 2019 Problem 1: [10 points] Draw the equivalent circuit of separately excited, shunt, and series DC motors. Problem 2: [50 points A 50 hp, 250 V, 1200 rpm dc shunt motor shown in Figure 1 has an armature resistance of 1 Ω. Its field circuit has a total resistance Ra Rf of 60 Ω, which produces a no-load speed of 1200 rpm. There are 1500 turns per pole on the shunt field winding IL RA...
25] Problem 4 Part a Fig represent the saturation curve at 1200 rpm of a series...
25] Problem 4 Part a Fig represent the saturation curve at 1200 rpm of a series de motor .The motor has Ka 40 and wound with 8 turns per pole. Total series field and armature-circuit resistance are 25m Ω and m 2, respectively. Draw the equivalent circuit. Part b For a certain load the same motor runs at 200v while taking 325 A in current. If core loss is 220 W, F& W loss is 40 W find Determine Flux...
(30 pts) A D.C. motor is shown below, where the inductance L and the resistance R model the armat...
(30 pts) A D.C. motor is shown below, where the inductance L and the resistance R model the armature circuit. The voltage Vb represents the back-emf which is proportional to dθ/dt via K. The torque T generated by the motor is proportional to the i via a constant K. The inertia J represents the combined inertia of the motor and load. The viscous friction acting on the output shaft is B 1. pur voltaop a. A. (10 pts) Find the...
Problem 2 Example Motor: 4-pole, 220 V, 60 Hz, 1700 rpm Problem #1: The example motor...
Problem 2
Example Motor: 4-pole, 220 V, 60 Hz, 1700 rpm Problem #1: The example motor is inverter driven with its rotor slip frequency controlled so that u, = u,Rated-2094 rad/s. The motor is coupled to a mechanical load with the torque-speed characteristic shown. a) b) For nm-0, find f, l,',VI, and ??. (ans. 3.33, 29.54, 3. I 15,0) For nm-1500 rpm, find f, 12,v,,and ?.(ans . 53.33,72.35, 122.09, 93.75) (N.m) 150 25 n (rpm) 1500 Problem # 2: The...
Q 1- 08 Pts) Figure below is a diagram of a DC motor connected in parnllel to a current source i,...
Q 1- 08 Pts) Figure below is a diagram of a DC motor connected in parnllel to a current source i,. The torque and back-EMF constants of the motor are Ko K respectively, the motor resistance is R, also modeled as connected in parallel, the motor inertia is 1- (not shown), and the motor inductance is negligible. The motor load is an inertia J with compliance (stiffness) K and viscous friction coefficient b, and it is attached a gear pair...
A motor is given in Figure 1 with the terminal voltage of the motor is 320 V, armature resistance of 2 2, series field resistance of 3 2, and KC value of 0.248. Sebuah motor diberi dalam Rajah 1 deng...
A motor is given in Figure 1 with the terminal voltage of the motor is 320 V, armature resistance of 2 2, series field resistance of 3 2, and KC value of 0.248. Sebuah motor diberi dalam Rajah 1 dengun voltan pangkalan pada motor sebanyak 320 V, rintangan angker adalah 2 S rintangan madan sesiri adalah 3 Q, dan nilai KC sebanyak 0.248. Figure 1 Rajah I a) Calculate the speed of the motor in Figure 1 when the armature...
Problem-5 (20 pts): Consider the DC servo motor shown in Figure-5. Assume that the input of the s...
Problem-5 (20 pts): Consider the DC servo motor shown in Figure-5. Assume that the input of the system is the applied armature voltage ea and the output is the load shaft position θ2. Assume also the following numerical values for the components: Ra-) Armature winding resistance = 0.2Ω La → Armature winding inductance = 0.1 mH Kb-) Back emf constant 0.05 Vs/rad K > Motor torque constant 0.06 Nm/A Jr Moment of inertia of the rotor of the motor =...
Question 3: DC motors can be simplistically modeled as shown in Figure 5 MoTor back emf Vi: +1 Resistor Ra Ia Figure 5: Simplified model of DC Motor (a) Write the three characteristic equations that determine the behavior of the DC motor. Denote torque constant and speed constant as Ka, K, respectively. (b) Motor parameters are the quantities that define the behavior of the motor. List the motor parameters from the described model. What are their units? (c) For given...
B-3-25 Consider the system shown in Figure 3-90. An armature-controlled de servomotor drives a load consisting of the moment of inertia J. The torque developed by the motor is T. The moment of inertia of the motor rotor is Jm The angular displacements of the motor rotor and the load element areo,1, and θ, respectively. The gear ratio is 0/6,n. Obtain the transfer function θίη(s)/Eds). Figure 3-90 Armature-controliled de servomotor system.
B-3-25 Consider the system shown in Figure 3-90. An...
The simplified diagram of a DC motor is shown in Fig. 4. Assume
that the rotor has inertia m J and viscous friction coefficient Bm.
The torque developed by the motor is assumed to be related linearly
to the field current by , m m f T K i where the motor torque
constant m f a K K K I 1 when the armature current a i is assumed
constant (i.e. ) a a i I...
HomeWork3 Deadline: Tuesday March 31st, 2019 Problem 1: [10 points] Draw the equivalent circuit of separately excited, shunt, and series DC motors. Problem 2: [50 points A 50 hp, 250 V, 1200 rpm dc shunt motor shown in Figure 1 has an armature resistance of 1 Ω. Its field circuit has a total resistance Ra Rf of 60 Ω, which produces a no-load speed of 1200 rpm. There are 1500 turns per pole on the shunt field winding IL RA...
25] Problem 4 Part a Fig represent the saturation curve at 1200 rpm of a series de motor .The motor has Ka 40 and wound with 8 turns per pole. Total series field and armature-circuit resistance are 25m Ω and m 2, respectively. Draw the equivalent circuit. Part b For a certain load the same motor runs at 200v while taking 325 A in current. If core loss is 220 W, F& W loss is 40 W find Determine Flux...
(30 pts) A D.C. motor is shown below, where the inductance L and the resistance R model the armature circuit. The voltage Vb represents the back-emf which is proportional to dθ/dt via K. The torque T generated by the motor is proportional to the i via a constant K. The inertia J represents the combined inertia of the motor and load. The viscous friction acting on the output shaft is B 1. pur voltaop a. A. (10 pts) Find the...
Problem 2
Example Motor: 4-pole, 220 V, 60 Hz, 1700 rpm Problem #1: The example motor is inverter driven with its rotor slip frequency controlled so that u, = u,Rated-2094 rad/s. The motor is coupled to a mechanical load with the torque-speed characteristic shown. a) b) For nm-0, find f, l,',VI, and ??. (ans. 3.33, 29.54, 3. I 15,0) For nm-1500 rpm, find f, 12,v,,and ?.(ans . 53.33,72.35, 122.09, 93.75) (N.m) 150 25 n (rpm) 1500 Problem # 2: The...
Q 1- 08 Pts) Figure below is a diagram of a DC motor connected in parnllel to a current source i,. The torque and back-EMF constants of the motor are Ko K respectively, the motor resistance is R, also modeled as connected in parallel, the motor inertia is 1- (not shown), and the motor inductance is negligible. The motor load is an inertia J with compliance (stiffness) K and viscous friction coefficient b, and it is attached a gear pair...
A motor is given in Figure 1 with the terminal voltage of the motor is 320 V, armature resistance of 2 2, series field resistance of 3 2, and KC value of 0.248. Sebuah motor diberi dalam Rajah 1 dengun voltan pangkalan pada motor sebanyak 320 V, rintangan angker adalah 2 S rintangan madan sesiri adalah 3 Q, dan nilai KC sebanyak 0.248. Figure 1 Rajah I a) Calculate the speed of the motor in Figure 1 when the armature...
Problem-5 (20 pts): Consider the DC servo motor shown in Figure-5. Assume that the input of the system is the applied armature voltage ea and the output is the load shaft position θ2. Assume also the following numerical values for the components: Ra-) Armature winding resistance = 0.2Ω La → Armature winding inductance = 0.1 mH Kb-) Back emf constant 0.05 Vs/rad K > Motor torque constant 0.06 Nm/A Jr Moment of inertia of the rotor of the motor =...
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