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Electrical Machines II

Module name (EN): Electrical Machines II
Degree programme: Electrical Engineering, Bachelor, ASPO 01.10.2005
Module code: E511
Hours per semester week / Teaching method: 2V+2U (4 hours per week)
ECTS credits: 4
Semester: 5
Mandatory course: yes
Language of instruction:
Written examination
Curricular relevance:
E511 Electrical Engineering, Bachelor, ASPO 01.10.2005, semester 5, mandatory course
60 class hours (= 45 clock hours) over a 15-week period.
The total student study time is 120 hours (equivalent to 4 ECTS credits).
There are therefore 75 hours available for class preparation and follow-up work and exam preparation.
Recommended prerequisites (modules):
E405 Electrical Machines I

[updated 12.03.2010]
Recommended as prerequisite for:
E607 Electrical Machines III

[updated 12.03.2010]
Module coordinator:
Prof. Dr.-Ing. Vlado Ostovic
Prof. Dr.-Ing. Vlado Ostovic

[updated 12.03.2010]
Learning outcomes:
After successfully completing this module, students will have acquired a basic understanding of electromechanical energy conversion and will know how to apply the fundamental laws of electrical engineering to solving problems involving electrical machines. They will also be able to use the knowledge gained to determine the key electromagnetic parameters in electric machines.
By studying this subject, students will gain a better understanding of the spatial and temporal relationships in electric machines and be able to draw parallels between different machine types. The methods learnt in this module provide a solid foundation for students taking more advanced modules in electrical machines.

[updated 12.03.2010]
Module content:
 1.1 Application of Maxwell’s equations to electrical machines
 1.2 Magnetic circuit of an electrical machine
 1.3 Conductor parameters of an electrical machine
2.Windings, currents and air-gap magnetomotive force
 2.1 Basic terminology
 2.2 Linear current density and electric loading
 2.3 Flux linkage in a coil and a winding
 2.4 Winding factor
 2.5 Matrix representation of flux linkage in a winding
 2.6 Time-dependent excitation
 2.7 Generating a rotating field
 2.8 Representation of the air-gap mmf in a rotating frame of reference
 2.9 Commutator windings
 2.10 Squirrel-cage rotor windings
3.Air-gap flux linkage and induction
 3.1 d-q representation of the spatial variables in the air-gap
 3.2 Effect of slots on air-gap flux linkage and induction; Carter factor
 3.3 Resulting air-gap flux linkage and induction in commutator machines
 3.4 Resulting air-gap flux linkage and induction in synchronous machines
 3.5 Resulting air-gap flux linkage and induction in asynchronous (induction)  

[updated 12.03.2010]
Teaching methods/Media:
Lecture notes, overhead transparencies, video projector

[updated 12.03.2010]
Recommended or required reading:
OSTOVIC, V: Elektrische Maschinen [Electric Machines], Lecture notes

[updated 12.03.2010]
[Sun Jul  5 14:41:41 CEST 2020, CKEY=eemia, BKEY=e, CID=E511, LANGUAGE=en, DATE=05.07.2020]