Explain how the switched reluctance motor (SRM) works. Draw the drive circuit for a three phase...
Explain how the switched reluctance motor (SRM) works. Draw the drive circuit for a three phase 12/8 SRM and explain the working states for one phase. Explain the operation of a current controlled SRM drive and propose a design for a suitable control system.
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Explain how the switched reluctance motor (SRM) works. Draw the
drive circuit for a three phase...
please solve this problem with detail explainations. Thanks Problem # 1 If the available power source is a three-phase, 60 Hz, ac supply and a separately excited DC motor is to be fed from this sourc...
please solve this problem with detail explainations. Thanks
Problem # 1 If the available power source is a three-phase, 60 Hz, ac supply and a separately excited DC motor is to be fed from this source, configure possible drive circuits for iOne-Quadrant Operation, i) Two-Quadrant Operation ) Four- Quadrant Operation Hints: (See below for the single phase diagram) For one-quadrant operation, the motor control circuit is a half-wave controlled rectifier or a se controlled converter and the driver for the...
8) A three-phase thyristor controlled converter is used to drive a motor system. What is the...
8) A three-phase thyristor controlled converter is used to drive a motor system. What is the required trigger delay angle a if the required average output DC voltage is 0.5Vm [2 points) a) 90 degrees. b) 45 degrees. c) 58.43 degrees. d) O degrees. 9) A 3-point motor starter arrangement is shown in the diagram below (1 point). Starting Resistence No volt col OFF Soft ron piece Starter handie Spring Over load release Lever Trangular iron Three Point Starter As...
3. A controlled single-phase fiull-wave controlled rectifier is connected in a de motor drive in Figure...
3. A controlled single-phase fiull-wave controlled rectifier is connected in a de motor drive in Figure 4. The de motor armature inductance can be assumed large enough such that any motor curent ripple is negligible. (a) Assuming negligible supply reactance, show that the average rectifier output voltage V, in tems of the supply ms voltage E and the firing angle a, is given by 2/2E (6 marks) cos a _ (b) Given that the supply voltage is 230V, 50HZ and...
P1. Draw a parasitic insensitive integrator based on switched capacitor circuits and explain how it works....
P1. Draw a parasitic insensitive integrator based on switched capacitor circuits and explain how it works. Explain how the effect of parasitic capacitances on the circuit is cancelled.
A 50-KW, 220V, 50 Hz, squirrel-cage three-phase induction motor is needed to rotate a mine conveyor...
A 50-KW, 220V, 50 Hz, squirrel-cage three-phase induction motor is needed to rotate a mine conveyor belt drive. The motor starts sometimes under load, but most of the time is needed to run at rated speed and slip of 3.5%. (a) Propose an appropriate design of this drive motor in order to suit the application. Motivate and then illustrate your design with suitable drawings and speed (slip)-torque graphs. [12] (b) If the supply voltage of the motor in (a) above...
below is the hint from my professor for the solution hopefully it can help you guy for the solving problem Problem # 1 If the available power source is a three-phase, 60 Hz, ac supply and a separat...
below is the hint from my professor for the solution
hopefully it can help you guy for the solving problem
Problem # 1 If the available power source is a three-phase, 60 Hz, ac supply and a separately excited DC motor is to be fed from this source, configure possible drive circuits for iOne-Quadrant Operation, i) Two-Quadrant Operation ) Four- Quadrant Operation Hints: (See below for the single phase diagram) For one-quadrant operation, the motor control circuit is a half-wave...
Draw the Current Mirror circuit and explain how it works.
Draw the Current Mirror circuit and explain how it works.
2. Short Answer (20 points) 1. Please draw the equivalent circuit of a 3-phase asynchronous motor (after winding and...
2. Short Answer (20 points) 1. Please draw the equivalent circuit of a 3-phase asynchronous motor (after winding and frequency conversions), explain the meaning of the resistance in rotor circuit and draw the phasor diagram of the machine. (5 points) Please write down the mathematical model of an asynchronous motor and try to make comparison among the control methods (VVVF, VC & DTC) of asynchronous motor. (5 points) 2. 3. It is known for 3-phase double-layer short-pitch distributed windings that:...
Draw a circuit that would allow us to measure the power delivered by a three- phase,...
Draw a circuit that would allow us to measure the power delivered by a three- phase, four-wire system. Use three single-phase watt meters and explain how to obtain the total three-phase power. 2. Draw a circuit that would allow us to measure the power delivered by a three- phase, three-wire system. Use two single-phase watt meters and explain how to obtain the total three-phase power
The speed of a separately excited de motor is controlled by a one-phase full-wave converter. The field circuit is also controlled by a full-wave converter and the field current is set to its maximum...
The speed of a separately excited de motor is controlled by a one-phase full-wave converter. The field circuit is also controlled by a full-wave converter and the field current is set to its maximum value. The AC supply voltage to the armature and field converters is one-phase, 400V, 50Hz. The armature resistance Ra 0.232, the field circuit resistance Rf- 1812, and the motor voltage constant is Kv 1.3V/A - rad/s. The armature current corresponding to the load demand Ia 42A...
please solve this problem with detail explainations. Thanks
Problem # 1 If the available power source is a three-phase, 60 Hz, ac supply and a separately excited DC motor is to be fed from this source, configure possible drive circuits for iOne-Quadrant Operation, i) Two-Quadrant Operation ) Four- Quadrant Operation Hints: (See below for the single phase diagram) For one-quadrant operation, the motor control circuit is a half-wave controlled rectifier or a se controlled converter and the driver for the...
8) A three-phase thyristor controlled converter is used to drive a motor system. What is the required trigger delay angle a if the required average output DC voltage is 0.5Vm [2 points) a) 90 degrees. b) 45 degrees. c) 58.43 degrees. d) O degrees. 9) A 3-point motor starter arrangement is shown in the diagram below (1 point). Starting Resistence No volt col OFF Soft ron piece Starter handie Spring Over load release Lever Trangular iron Three Point Starter As...
3. A controlled single-phase fiull-wave controlled rectifier is connected in a de motor drive in Figure 4. The de motor armature inductance can be assumed large enough such that any motor curent ripple is negligible. (a) Assuming negligible supply reactance, show that the average rectifier output voltage V, in tems of the supply ms voltage E and the firing angle a, is given by 2/2E (6 marks) cos a _ (b) Given that the supply voltage is 230V, 50HZ and...
below is the hint from my professor for the solution
hopefully it can help you guy for the solving problem
Problem # 1 If the available power source is a three-phase, 60 Hz, ac supply and a separately excited DC motor is to be fed from this source, configure possible drive circuits for iOne-Quadrant Operation, i) Two-Quadrant Operation ) Four- Quadrant Operation Hints: (See below for the single phase diagram) For one-quadrant operation, the motor control circuit is a half-wave...
2. Short Answer (20 points) 1. Please draw the equivalent circuit of a 3-phase asynchronous motor (after winding and frequency conversions), explain the meaning of the resistance in rotor circuit and draw the phasor diagram of the machine. (5 points) Please write down the mathematical model of an asynchronous motor and try to make comparison among the control methods (VVVF, VC & DTC) of asynchronous motor. (5 points) 2. 3. It is known for 3-phase double-layer short-pitch distributed windings that:...
Draw a circuit that would allow us to measure the power delivered by a three- phase, four-wire system. Use three single-phase watt meters and explain how to obtain the total three-phase power. 2. Draw a circuit that would allow us to measure the power delivered by a three- phase, three-wire system. Use two single-phase watt meters and explain how to obtain the total three-phase power
The speed of a separately excited de motor is controlled by a one-phase full-wave converter. The field circuit is also controlled by a full-wave converter and the field current is set to its maximum value. The AC supply voltage to the armature and field converters is one-phase, 400V, 50Hz. The armature resistance Ra 0.232, the field circuit resistance Rf- 1812, and the motor voltage constant is Kv 1.3V/A - rad/s. The armature current corresponding to the load demand Ia 42A...
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