Explain wave stepping and full stepping in stepper motor control. What is the main difference between them ...?
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Q.) Explain wave stepping and full stepping in stepper motor control. What is the main difference between them ...?
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- Manual Control: Design a dc motor circuit to drive an assembly line consisting of a conveyor belt moving horizontally. The load on the belt varies depending on the number of goods being moved. The load torque seen by the motor varies from a maximum of 20 Nm to a minimum of 5 Nm. At all loading conditions, the speed of the motor must be maintained constant and equal to 150 rpm. a. To achieve the required operation, the armature voltage of the motor is adjusted by a single-phase, full-wave, ac/dc converter. The input voltage and frequency to the converter are 240 V (rms) and 50 Hz. (Hint: Motor type, Motor rating, α range, Supply voltage, and frequency...etc) Automatic Control: Modify the design to automatically adjust the voltage to maintain the speed equal to 200 rpm within the specified torque range. (Hint: control variable, controller type, connection, controller weights..etc)A shunt motor running on no-load takes 5 A at 200 V. The resistance of the fieldcircuit is 150 ohms and of the armature 0.1 ohm. Determine the output andefficiency of motor when the input current is 120 A at 200 V.5) Explain the working principle of stepper motor with s3+ 5s2 + 12s + K = 0. Find the range of K for all the roots to lie to the The characteristics equation for feedback control is, neat diagram. The characteristics equation for feedback control. left of s = 1.
- At 6V a servo has a stall torque of 2.5 kg-cm. a) What would the stall torque be at 4V? b) What is the allowable stall torque so the servo will not exceed 30% of the stall torque?List some advantages of solid-state control.Electrical Engineering c) A dc servomotor is used to actuate a robot joint. The motor has a supply voltage of 20 V and has an armature current of 10 A while at stall condition and zero while at no load condition. Considering torque constant of 10 in-lb/A and a voltage constant of 10 V/Kr/min, sketch and comment on Speed vs Torque profile. Take necessary logical assumptions wherever applicable.
- Which machine the following equation is describing? Vs = Ris + V₁ + Vc A. Series RLC circuit B. Separately excited DC motor C. Permanent magnet DC motorField Resistance Speed Control of DC motors What is the theory behind the speed control through the variation of the field resistance? Discuss the schematic diagram for the field resistance speed control · Discuss the load characteristics (speed- armature current) of this controlDC4 A shunt DC motor has a no-load speed of 1200 rpm. When a mechanical load with a torque of 120 Nm is connected to the shaft of the motor, the motor runs with a rpm. speed of 1120 rpm. If the loading condition is doubled, the new speed of the motor will be (The motor has compensating windings and armature reaction is neglected.)
- a) The speed control of an AC motor can be achieved by using 2 common types of drive circuit, namely the six step and the PWM types. Describe with the aim of diagrams, the difference between the two types of controller. You should list and explain the power electronic devices used, as well as the details of the DC link for each device.3LDC Motor or AC Servomotor 'Explain why a BLDC motor experiences no slip at all during acceleration. Some of BLDC motors don't have encoder. What is kind of applications that suitable with this type of motor? Explain why the encoder sensor is not required. Calculate motor efficiency for the following motor. a. b. C. AC Servomotor 3-14 kW 24 A 1500 RPM CONT. 20 Nm 200 V ins. FWhat 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?