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Special Machines

Module name (EN): Special Machines
Degree programme: Electrical Engineering, Master, ASPO 01.10.2005
Module code: E928
Hours per semester week / Teaching method: 3V+1U+1PA (5 hours per week)
ECTS credits: 5
Semester: 9
Mandatory course: no
Language of instruction:
Independent project work

[updated 13.03.2010]
Applicability / Curricular relevance:
E928 Electrical Engineering, Master, ASPO 01.10.2005, semester 9, optional course
75 class hours (= 56.25 clock hours) over a 15-week period.
The total student study time is 150 hours (equivalent to 5 ECTS credits).
There are therefore 93.75 hours available for class preparation and follow-up work and exam preparation.
Recommended prerequisites (modules):
E804 Electrical Engineering Theory II

[updated 13.03.2010]
Recommended as prerequisite for:
Module coordinator:
Prof. Dr.-Ing. Vlado Ostovic
Prof. Dr.-Ing. Vlado Ostovic

[updated 13.03.2010]
Learning outcomes:
After successfully completing this course, students will be able to analyse non-standard electrical machines and to calculate their stationary operating characteristics. Students will learn to adapt, develop and apply the conventional methods of machine analysis to studying special machines.

[updated 13.03.2010]
Module content:
1.Conventional and special electrical machines
 1.1.Rotating and linear electrical machines
 1.2.Heteropolar and homopolar electric machines
 1.3.Electric machines with 2- and 3-dimensional flux distributions in the  
     core-and-coil assembly
2.Superconducting electric machines and transformers
 2.1.Fundamental physical principles of superconductivity: Classical and  
     high-temperature superconductivity
 2.2.Superconducting DC machines
 2.3.Superconducting alternators
3.PM motors with ummagnetizable magnets
 3.1.Conventional PM motors with ferrite, AlNiCo and rare-earth magnets
 3.2.Magnetization and demagnetization of permanent magnets
 3.3.Brushless unmagnetizable PM motors as car starter-alternators
 3.4.Homopolar ummagnetizable PM motors as generators in trucks
4.Homopolar and transverse flux motors
 4.1.Magnetic circuits in homopolar and transverse flux motors
 4.2.Homopolar DC motors: Structure and applications
 4.3.Homopolar synchronous motors: Structure and applications
 4.4.From the bicycle dynamo to the transverse flux motor: Advantages and  
5.Limit motors and traction generators
 5.1.Limit ratings
 5.2.Electromagnetic, mechanical and thermal problems with limit motors
 5.3.Unbalanced loads in polyphase machines; single-phase and traction  

[updated 13.03.2010]
Teaching methods/Media:
Lecture notes, overhead transparencies, video projector, PC

[updated 13.03.2010]
Recommended or required reading:
OSTOVIC, V.:  ‘Sondermaschinen’, (lecture notes)

[updated 13.03.2010]
[Sun Jul  3 01:49:58 CEST 2022, CKEY=esm, BKEY=em, CID=E928, LANGUAGE=en, DATE=03.07.2022]