Design of Electrical Machines and Transformers
Data is displayed for academic year: 2023./2024.
Lecturers
Lectures
Exercises
Laboratory exercises
Course Description
Basic principles of design and construction of electrical machines. Design algorithm. Selection of electrotechnical materials for constructions of machines and devices. Determination of main dimensions of transformers, induction machines and synchronous machines. Calculation of magnetic circuit and electric machine parameters. Capability curves, losses and efficiency. Choice of the cooling method. Thermal equivalent circuit and basic calculation of heat distribution. Scaling laws in construction of electrical machines. Computer aided design. The application of 2D and 3D finite element method in the machine design. Principles of optimization in the design. The use of standards and regulations in the design process.
Study Programmes
University graduate
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[FER3-HR] Software Engineering and Information Systems - profile
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(3. semester)
Learning Outcomes
- Describe the construction of transformers and rotating machines
- Identify cooling types, mechanical protection and construction of transformers and rotating machines
- Explain the principles of design and construction of electrical machinery
- Calculate the main dimensions of transformers and rotating machines
- Analyze the impact of selection of parameters and dimensions of an electric machine on the output characteristics
- Relate magnetic circuit characteristics with the parameters of an electric machine model
Forms of Teaching
Lectures
classical lectures using blackboard in combination with PowerPoint slides
Seminars and workshopselectrical machine design project based on design requirements
Exercisessolving numerical examples related to the content of the lectures
Partial e-learningposting study materials and communicating with students through the course website. Moodle quizzes for self-study.
Laboratorylaboratory computer exercises
Grading Method
Continuous Assessment | Exam | |||||
---|---|---|---|---|---|---|
Type | Threshold | Percent of Grade | Threshold | Percent of Grade | ||
Laboratory Exercises | 50 % | 30 % | 50 % | 30 % | ||
Seminar/Project | 50 % | 40 % | 50 % | 40 % | ||
Final Exam: Oral | 30 % | |||||
Exam: Oral | 30 % |
Week by Week Schedule
- Design methods; Standards; Limits
- Methods for determination of main dimensions of electrical machines
- Calculation of nonlinear magnetic circuit of a rotating machine
- Design of electric machine windings
- Calculation of resistances and inductances, Calculation of losses and efficiency
- Calculation of temperature rise in various machine parts; Basic thermal model
- Basic calculation of mechanical stress
- Midterm exam
- Transformer - main dimensions and design features
- Turbogenerator - main dimensions and design features
- Hydrogenerator - main dimensions and design features
- Induction machine - main dimensions and design features
- Permanent magnet synchronous machine - main dimensions and design features
- Scaling laws and scaling of electric machines
- Final exam
Literature
Juha Pyrhonen, Tapani Jokinen, Valeria Hrabovcova (2013.), Design of Rotating Electrical Machines, John Wiley & Sons
J. R. Hendershot, Timothy John Eastham Miller (2010.), Design of Brushless Permanent-magnet Machines,
Thomas A. Lipo (2017.), Introduction to AC Machine Design, John Wiley & Sons
M. Ramamoorty (1988.), Computer-Aided Design of Electrical Equipment, Ellis Horwood Limited
Z. Sirotić, V. Krajzl (1975.), Upute za proračun sinhronih strojeva, Sveučilište u Zagrebu
For students
General
ID 222748
Winter semester
5 ECTS
L1 English Level
L1 e-Learning
30 Lectures
0 Seminar
15 Exercises
13 Laboratory exercises
0 Project laboratory
0 Physical education excercises
Grading System
85 Excellent
70 Very Good
60 Good
50 Sufficient