Course syllabus adopted 2026-02-04 by Head of Programme (or corresponding).
Overview
- Swedish nameElektriska maskiner - design och analys
- CodeENM056
- Credits7.5 Credits
- OwnerMPEPO
- Education cycleSecond-cycle
- Main field of studyElectrical Engineering
- DepartmentELECTRICAL ENGINEERING
- GradingTH - Pass with distinction (5), Pass with credit (4), Pass (3), Fail
Course round 1
- Teaching language English
- Application code 21119
- Maximum participants90 (at least 10% of the seats are reserved for exchange students)
- Open for exchange studentsYes
Credit distribution
Module | Sp1 | Sp2 | Sp3 | Sp4 | Summer | Not Sp | Examination dates |
|---|---|---|---|---|---|---|---|
| 0118 Examination 7.5 c Grading: TH | 7.5 c |
In programmes
- MPEPO - Sustainable Electric Power Engineering and Electromobility, Year 1 (compulsory)
- MPSYS - Systems, Control and Mechatronics, Year 2 (elective)
- TIELL - Electrical Engineering - Electric Power Engineering, Year 3 (compulsory elective)
Examiner
- Yujing Liu
- Full Professor, Electric Power Engineering, Electrical Engineering
Eligibility
General entry requirements for Master's level (second cycle)Applicants enrolled in a programme at Chalmers where the course is included in the study programme are exempted from fulfilling the requirements
Specific entry requirements
English 6 (or by other approved means with the equivalent proficiency level)Applicants enrolled in a programme at Chalmers where the course is included in the study programme are exempted from fulfilling the requirements
Course specific prerequisites
Course specific prerequisites for MPEPO in the Admission RegulationsAim
The overall aim of the course is to provide understanding on physical interactions of electrical, magnetic, and mechanical phenomena in different electrical machines and ability to design an electrical machine according to requirements. The course will deal with different aspects in electrical machines: theory, characteristics, dynamics, applications, and design. The students are encouraged to consider environmental impacts of electrical machines, including materials, manufacturing, energy-efficiency, and material recyclingLearning outcomes (after completion of the course the student should be able to)
- describe working principle and main parts of synchronous machines and induction machines, and manufacturing process of electrical machines.
- model electromagnetic excitation, permanent magnets, and lamination materials considering saturation.
- calculate magnetic flux, flux linkage, inductance and reluctance.
- calculate operating points of permanent magnets under no-load and load conditions of a permanent magnet synchronous machine.
- describe various type of windings, e.g. distributed and concentrated windings, single or multilayer windings, integer slot or fractional slot windings.
- draw the distribution of phase coils in slots of a three phase machine and calculate winding factors for both distributed and concentrated windings.
- design double-layer 3-phase windings including selection of coil turns, series and parallel branches, and wire strand with a proper Cu fill factor.
- calculate electromotive force (EMF) of a permanent magnet synchronous machine at no-load.
- describe different coordinate systems including three-phase and two-phase stationary coordinate systems, d-q rotating coordinate system.
- calculate inductances in d- and q-axis by using magnetic circuits for a permanent magnet synchronous machine and model permanent magnet synchronous machines in d-q coordinate system.
- design a permanent magnet synchronous machine for electric vehicle applications, calculate power, power factor, torque, copper losses, iron losses, and efficiency.
- draw equivalent circuit and calculate steady-state performance of induction machines and analyze the influence of circuit parameters on torque-speed curve of induction machines.
- perform a practical experiment in order to determine the equivalent circuit parameters of an induction machine and acquire relevant quantities during a start-up.
- draw phasor diagram and control reactive power by field current in a synchronous generator.
- describe different kinds of traction motors and discuss their features.
- identify the ethical aspects needed to be considered in design and use of electrical machines.
- reflect on opportunities and challenges of an international working environment.
Content
- Introduction of the course and different electrical machines.
- Magnetic circuits and torque generation
- Rotating magnetic field.
- Windings and calculations of winding factors.
- Coordinate systems and d-q inductances.
- Induction machine.
- PM synchronous machine.
- Synchronous generator.
- Traction motors.
- International working environment.
Organisation
- 18 lectures (2 x 45 min per lecture),
- 8 tutorials (2 x 45 min per tutorial),
- 1 session of practical laboratory work on induction machines (4 hours),
- 8 sessions of design assignment in computer room (2 x 45 min per session).
- 1 workshop on international working environment.
Literature
- Main course literature: Electrical Machines: Design and Analysis, Chalmers internal book, PDF available on the course website.
- For further reading: (1) Design of Rotating Electrical Machines, by Juha Pyrhönen, published by John Wiley & Sons.; (2) Electric Machinery Fundamentals, by Stephen Chapman, published by McGrawHill.
Examination including compulsory elements
Final written exam: 80 points; Design assignment: 20 points. Grades: Fail, 3, 4 or 5. The practical laboratory exercises, the design assignment, and the workshop on international work environment are compulsory.The course examiner may assess individual students in other ways than what is stated above if there are special reasons for doing so, for example if a student has a decision from Chalmers about disability study support.