Lecture 5
Tid: Tisdag 22 september 2015 kl 10:00 - 12:00
Plats: Q2
Aktivitet: Lektion
Lärare: Juliette Soulard ()
Studentgrupper: TELPM_1, TIETM_SENS_1, TIETM_SMCS_1, TSCRM_1, TSCRM_2
Operating principle of the induction machine, magnetisation and torque production in induction machines, equivalent circuit (comp. 2-2.4)
Homework before lecture 5 on 22nd Sept @10
1- Reading:
alt. 1 compemdium EJ2200 pages 2-1 to 2.21 (including section 2.6), concentrate on the phenomena described, how the torque, rather than on each single equation. You need to be able to draw the complete equivalent circuit looks like and why the different components are there. Then you can derive most of all the equations from it when you solve problems.
alt. 2 [SEN] chapter 5, sections 5.1 to 5.4 (includes a revision of rotating magnetic field from last week) pp207-220, and section 5.7 pp222-228. Derivation of equivalent circuit easier to follow than compendium but equations 5.37 and 5.39 to 5.43 seem to forget the machine has three phases!
alt. 3 [FIT] chapter 6, pp306-327 (pp321-342 iin pdf file).
2- Video DELFT, #6. DC Machine drivers and Induction machines until 56min
If you choose only alt. 1, you do not get any pictures of real induction machines, check YouTube vidoes or open other books on electrical machines. You can not understand machines if you do not know how they look like inside!