Course detail
Electrical machines 2
FEKT-BES2Acad. year: 2012/2013
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
Number of ECTS credits
Mode of study
Guarantor
Learning outcomes of the course unit
Prerequisites
Co-requisites
Planned learning activities and teaching methods
Assesment methods and criteria linked to learning outcomes
Computer exercises - 15 points
Final Exam - 65 points
Course curriculum
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
Aims
Specification of controlled education, way of implementation and compensation for absences
Recommended optional programme components
Prerequisites and corequisites
Basic literature
Patočka, M.: Magnetické obvody. Elektronický učební text, FEKT, VUT Brno, 2005. (CS)
Recommended reading
Classification of course in study plans
Type of course unit
Lecture
Teacher / Lecturer
Syllabus
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.
Exercise in computer lab
Teacher / Lecturer
Syllabus
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.