Course detail

Electrical machines 2

FEKT-CES2Acad. year: 2011/2012

The course presents the electrical machines from the point of view of basic physical laws in relation to the theory of electrical machines. The course aims to extend the knowledge of magnetic circuits, windings, cooling and to introduce the basic principles of design of electrical machines. The students will be acquainted with finite element method with reference to analysis and design of electrical machines.

Language of instruction

English

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Ondřej Vítek, Ph.D.

Department

Department of Power Electrical and Electronic Engineering (UVEE)

Learning outcomes of the course unit

Not applicable.

Prerequisites

Not applicable.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Not applicable.

Assesment methods and criteria linked to learning outcomes

Not applicable.

Course curriculum

Lecture
1. Electromagnetic field, fundamental equations, introduction to Finite Element Method.
2. Losses and efficiency, materials properties.
3. Transformers, design of magnetic circuit and winding.
4. Application of modern materials, electrical machines dimensioning.
5. Principle of electromagnets, electromechanical energy conversion.
6. Construction and design of electromagnets.
7. DC machines, magnetic circuit, excitation and armature winding.
8. Permanent magnets properties and design of DC permanent magnet motors.
9. Magnetic circuit and construction of synchronous machines, generated voltage.
10. Permanent magnet synchronous machine, BLDC motor, design of magnetic circuit and winding.
11. Temperature field and cooling.
12. Design of cooling system of electrical machines.
13. Mechanical analysis for electrical machines.

Computer exercises
1. Introduction to FEMM program. Preprocessor, meshing, postprocessor.
2. Air-core coil, iron-core coil, simple magnetic circuit with one and more coils.
3. Transformer. Magnetostatic analysis.
4. Transformer. AC magnetic analysis.
5. Electromagnet in cartesian coordinates, energy, co-energy, force.
6. Electromagnet in cylindrical coordinates, effect of magnetic circuit design on electromagnet characteristics.
7. Wound-Field DC Motor.
8. Permanent Magnet DC Motor.
9. Salient pole and non-salient pole synchronous machine.
10. Permanent magnet synchronous machine and BLDC motor.
11. Thermal analysis of electrical machines.
12. Temperature field of transformer.
13. Structural analysis of the rotor.

Work placements

Not applicable.

Aims

Not applicable.

Specification of controlled education, way of implementation and compensation for absences

Not applicable.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Fitzgerald,Kingsley,Kusko: Electric Machinery,McGraw-Hill (EN)
Patočka, M.: Magnetické obvody. Elektronický učební text, FEKT, VUT Brno, 2005. (CS)
Pyrhonen, J., Jokinen, T., Hrabovcova, V.: Design of Rotating Electrical Machines. Wiley, 2009 (EN)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EECC Bc. Bachelor's

    branch BC-SEE , 3 year of study, summer semester, compulsory