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Dynamics of Electrical Machines

Module name (EN): Dynamics of Electrical Machines
Degree programme: Electrical Engineering, Master, ASPO 01.10.2005
Module code: E908
Hours per semester week / Teaching method: 3V+1U+1PA (5 hours per week)
ECTS credits: 5
Semester: 8
Mandatory course: yes
Language of instruction:
Independent project work

[updated 12.03.2010]
Applicability / Curricular relevance:
E908 Electrical Engineering, Master, ASPO 01.10.2005, semester 8, mandatory 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 12.03.2010]
Recommended as prerequisite for:
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 a fundamental understanding of how to analyse transient responses in electrical machines. They will be able to describe an electrical machine using a linear or a nonlinear dynamic model and will be able to compute the machine’s dynamic behaviour in the time domain. They will be in a position to use their knowledge to calculate dynamic parameters of electrical machines and to develop and document solutions to specific technical problems in the field of controlled electrical motors and drives.

[updated 12.03.2010]
Module content:
1.General principles and machine models
 1.1.Ordinary differential equations for electrical machines
 1.2.Numerical methods for integrating systems of differential equations
 1.3.Nonlinearity in electrical machines
 1.4.Linear and nonlinear models of electrical machines
2.Transient responses in commutator machines
 2.1.Analytical solutions: mechanical and electromechanical time constants
 2.2.Numerical solutions
3.d-q models of polyphse machines
 3.1.Direct and quadrature axes in unsaturated electrical machines with  
     cylindrical rotors
 3.2.Physical interpretation of d-q variables; torque generation
 3.3.Transient responses in induction machines
 3.4.Transient responses in synchronous machines
4.Nonlinear dynamic models of electrical machines
 4.1.Physical fundamentals; Magnetization characteristics
5.Transient responses in immobile saturated magnetic circuits
 5.1.The role of magnetic energy; torque generation
 5.2.Transient responses in saturated induction machines
 5.3.Transient responses in saturated synchronous machines
 5.4.Transient responses in saturated special machines (switched reluctance  
     motors, PM motors, etc.)

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

[updated 12.03.2010]
Recommended or required reading:
OSTOVIC, V.: Computer-aided Analysis of Electric Machines, Prentice-Hall, London, 1994
OSTOVIC, V.: Dynamics of Saturated Electric Machines, Springer-Verlag, New York, 1989

[updated 12.03.2010]
[Sun Jul  3 01:28:14 CEST 2022, CKEY=eemd, BKEY=em, CID=E908, LANGUAGE=en, DATE=03.07.2022]