Dc Drives-Principles of DC Drive Control

May 4th, 2015
Studypool Tutor
Price: $10 USD

Tutor description

To learn the basic characteristics of DC motors and their control parameters * to understand the various operating modes DC motors and their representation: The basic principle of a DC motor is the production of a torque as a result of the flux interaction between a “field” produced on the STATOR (either produced by a permanent magnet, or a field winding) and the current circulating in the “armature” windings on the ROTOR.

Word Count: 1018
Showing Page: 1/5
Dc DrivesPart I: Principles of DC Drive ControlLearning Objectives: * to learn the basic characteristics of DC motors and their control parameters * to understand the various operating modes DC motors and their representation: The basic principle of a DC motor is the production of a torque as a result of the flux interaction between a field produced on the STATOR (either produced by a permanent magnet, or a field winding) and the current circulating in the armature windings on the ROTOR. In order to produce a torque of constant sign, the armature winding loops are connected to a set of brushes which commutate the current appropriately in each loop according to their geometric position. The commutator is a MECHANICAL RECTIFIER. Note that reversal of either the field current or the Armatur e Current armature current results in a torque in the opposite Field (free direction. However, reversal of both fields does Control wheeling Rfc Resistor diode) not change the torque direction, hence it can be +V used as a universal motor with DC or AC feed (La, Ra) (Rf, Lf) Eo if both windings are in series. NBasic Equations of a DC Machine:Fig 1: DC MotorSteady state conditions (assume all time varying quantities have a constant average value) Vf = Rf I f E = K vI f ( field winding ) (Counter emf or Back EMF ) (armature voltage ) (electrical torque)Va = Ra I a + E = Ra I a + K vI f Te = K t I f I a = A + B + Tload Pd = Te(developed power )(The

Review from student

Studypool Student
" all I can say is wow very fast work, great work thanks "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1826 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors