R.L.MotorinertiamotorepDampingbArmature circuitInertial loadAn armature-controlled DC motor is used to operate a valve using a lead screw. The motor hasthe following parameters:kg - 0.04 Nm A-1R - 0.2 ohmsLa - 0.002 Hko - 0.004 VsJ- 104 Kgm?b -0.01 NmsLead Screw Diameter - 1cm(a) Find the transfer function relating the angular velocity of the shaft and the input voltage.(b) Given that the DC voltage is 25 V determine:(i)The undamped natural frequency(ii)The damping ratio(ii)The time to the 1' peak of angular velocity(iv) The settling time(v)The steady state angular velocity(c) Ignoring the inductance determine the distance moved by the valve if the voltage is switchedoff. Assume the motor is moving at steady state angular velocity and the lead screw pitch todiameter ratio is 0.5. Find the rotation angle and the movement.

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An armature-controlled DC motor is used to operate a valve using a lead screw. The motor has the following parameters: kg - 0.04 Nm A-1 R, - 0.2 ohms L, - 0.002 H kg - 0.004 Vs J- 10“ Kgm² b - 0.01 Nms Lead Screw Diameter - 1cm (a) Find the transfer function relating the angular velocity of the shaft and the input voltage. (b) Given that the DC voltage is 25 V determine: (1) The undamped natural frequency (i) The damping ratio (i) The time to the 1" peak of angular velocity

An armature-controlled DC motor is used to operate a valve using a lead screw. The motor has the following parameters: kg - 0.04 Nm A-1 R, - 0.2 ohms L, - 0.002 H kg - 0.004 Vs J- 10“ Kgm² b - 0.01 Nms Lead Screw Diameter - 1cm (a) Find the transfer function relating the angular velocity of the shaft and the input voltage. (b) Given that the DC voltage is 25 V determine: (1) The undamped natural frequency (i) The damping ratio (i) The time to the 1" peak of angular velocity

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter51: Electric And Electronic Braking

Section: Chapter Questions

Problem 2SQ: Differentiate between the AC and DC magnetic fields applied to an induction motor stator.

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