The course deals with the principle of operation and modelling of electrical machines (motors and generators), togheter with the basic control structures used in electric drives. The content of the course is shaped in such a way that students with a background in physics, electromagnetics and electrical circuits should be able to grow their knowledge and understand how different types of electrical machines operate, how to choose an electrical machine and a drive for a specific application, and what are the inherent differences in using a machine with or without a frequency converter. Practical experience in laboratory is part of the course flow.
Course memo Autumn 2022
Recent memos are listed on Course memo.
Course presentation
Headings denoted with an asterisk ( * ) is retrieved from the course syllabus version Autumn 2021
Content and learning outcomes
Course contents
- Electromagnetism and electromechanical models with application to rotating electric machines
- Principles of electromechanical energy conversion.
- Dc machines and their electric drive system.
- Rotating magnetic fields and AC windings.
- The space vectors and the dq0 reference frame.
- Operating principles for synchronous machines.
- Operating principles for asynchronous machines.
- Introduction to three-phase electric drive systems.
Intended learning outcomes
After passing the course, the student shall be able to
• describe the basic principles of electromechanical conversion
• explain the principles of rotating magnetic field generation through the construction of AC windings
• explain the operating principles of DC machines, synchronous machines and induction machines
• use analytical models for describing the operation of DC machines, synchronous machines and induction machines
• use the space vector theory and the reference frame theory to describe the operation of AC machines
• describe the most important parts of a DC electric drive and a three-phase electric drive.
Learning activities
- Conventional lectures by the teacher, where the most important concepts are explained and discussed.
- Matlab/Simulink tutorials in an online format, where the teacher goes through some fundamental aspects of using the Matlab/Simulink software concerning electric machines and drives.
- Project support sessions, where the students receive support from the teacher concerning the assignment for the examination.
- One laboratory session, where the students have some hands-on experience with electric machines. This session is mandatory.
Detailed plan
The following table reports the course schedule for the semester HT22. It is the same as the one published on the official KTH Schedule, with some minor changes in the content (some lectures became assignment support, and vice versa).
The lectures are held at the campus in the indicated rooms. They will also be recorded and made available on these CANVAS pages.
Schedule changes will be communicated in advance. Hope it will not be necessary.
| Date | Start time | Stop time | Location | Type | Title |
| 2022-08-30 | 13:00 | 15:00 | W38 | Lecture | EJ2201 - Introduction and a bit of electromagnetism |
| 2022-08-31 | 10:00 | 12:00 | U51 | Lecture | EJ2201 - Dusting off electrical, magnetic, mechanical lumped parameter models |
| 2022-09-01 | 10:00 | 12:00 | H1 | Lecture | EJ2201 - Principles of electromechanical energy conversion |
| 2022-09-06 | 13:00 | 15:00 | W43 | Lecture | EJ2201 - The DC machine: principles, modelling and operating regions |
| 2022-09-08 | 10:00 | 12:00 | E3 | Lecture | EJ2201 - The DC machine: estimating performances from datasheets |
| 2022-09-09 | 13:00 | 15:00 | V1 | Lecture | EJ2201 - The DC machine: dynamic behaviour and how to control it |
| 2022-09-13 | 13:00 | 15:00 | W43 | Lecture | EJ2201 - Introduction to three-phase machines and their concepts |
| 2022-09-14 | 13:00 | 15:00 | W42 | Lecture | EJ2201 - Winding functions and inductances |
| 2022-09-16 | 13:00 | 15:00 | E3 | Lecture | EJ2201 - Analytical inductance calculations for some AC winding configurations |
| 2022-09-22 | 10:00 | 12:00 | H1 | Lecture | EJ2201 - Reference frames and space vectors for three-phase systems |
| 2022-09-23 | 13:00 | 15:00 | V3 | Lecture | EJ2201 - The synchronous machine: principle of operation |
| 2022-09-27 | 13:00 | 15:00 | W42 | Lecture | EJ2201 - The synchronous machine: dynamic linear and non-linear models |
| 2022-09-29 | 10:00 | 12:00 | V3 | Lecture | EJ2201 - The synchronous machine: operating regions and MTPA/MTPV |
| 2022-09-30 | 13:00 | 15:00 | W42 | Lecture | EJ2201 - The induction machine: principle of operation |
| 2022-10-04 | 13:00 | 15:00 | Sten Velander, Teknikringen 33, floor 4, room 3412 | Lecture | EJ2201 - The induction machine: the equivalent circuits and torque/speed characteristics |
| 2022-10-07 | 13:00 | 15:00 | Sten Velander, Teknikringen 33, floor 4, room 3412 | Lecture | EJ2201 - The induction machine: open-circuit and short-circuit tests |
| 2022-10-11 | 13:00 | 15:00 | Sten Velander, Teknikringen 33, floor 4, room 3412 | Lecture | EJ2201 - Three-phase drives: introduction |
| 2022-10-14 | 13:00 | 15:00 | Sten Velander, Teknikringen 33, floor 4, room 3412 | Lecture | EJ2201 - Three-phase drives: the Field-Oriented Control |
| 2022-11-02 | 10:00 | 12:00 | Q2 | Back-up lecture | EJ2201 - Back-up lecture |
| 2022-11-03 | 10:00 | 12:00 | M3 | Back-up lecture | EJ2201 - Back-up lecture |
| 2022-11-04 | 13:00 | 15:00 | Q2 | Back-up lecture | EJ2201 - Back-up lecture |
| 2022-11-08 | 10:00 | 12:00 | K1 | Assignment support | EJ2201 - Assignment support |
| 2022-11-10 | 10:00 | 12:00 | E3 | Assignment support | EJ2201 - Assignment support |
| 2022-11-15 | 10:00 | 12:00 | W25 | Optional seminar | EJ2201 - Optional seminar - speaker to be decided |
| 2022-11-17 | 10:00 | 12:00 | U41 | Optional seminar | EJ2201 - Optional seminar - speaker to be decided |
| 2022-11-22 | 10:00 | 12:00 | B3 | Optional seminar | EJ2201 - Optional seminar - speaker to be decided |
| 2022-11-24 | 10:00 | 12:00 | W38 | Optional seminar | EJ2201 - Optional seminar - speaker to be decided |
| 2022-11-28 | 08:00 | 12:00 | SPL, Teknikringen 33, floor 1, room 3211 | Laboratory | EJ2201 - Laboratory: parameter estimation in induction machines - group A |
| 2022-11-28 | 13:00 | 17:00 | SPL, Teknikringen 33, floor 1, room 3211 | Laboratory | EJ2201 - Laboratory: parameter estimation in induction machines - group B |
| 2022-11-29 | 08:00 | 12:00 | SPL, Teknikringen 33, floor 1, room 3211 | Laboratory | EJ2201 - Laboratory: parameter estimation in induction machines - group C |
| 2022-11-29 | 13:00 | 17:00 | SPL, Teknikringen 33, floor 1, room 3211 | Laboratory | EJ2201 - Laboratory: parameter estimation in induction machines - group D |
| 2022-11-30 | 08:00 | 12:00 | SPL, Teknikringen 33, floor 1, room 3211 | Laboratory | EJ2201 - Laboratory: parameter estimation in induction machines - group E |
| 2022-11-30 | 13:00 | 17:00 | SPL, Teknikringen 33, floor 1, room 3211 | Laboratory | EJ2201 - Laboratory: parameter estimation in induction machines - group F |
| 2022-12-01 | 08:00 | 12:00 | SPL, Teknikringen 33, floor 1, room 3211 | Laboratory | EJ2201 - Laboratory: parameter estimation in induction machines - group G |
| 2022-12-01 | 13:00 | 17:00 | SPL, Teknikringen 33, floor 1, room 3211 | Laboratory | EJ2201 - Laboratory: parameter estimation in induction machines - group H |
| 2022-12-06 | 10:00 | 12:00 | Gustaf Dahlander, Teknikringen 31, floor 3, room 1320 | Assignment support | EJ2201 - Assignment support |
| 2022-12-08 | 10:00 | 12:00 | Sten Velander, Teknikringen 33, floor 4, room 3412 | Assignment support | EJ2201 - Assignment support |
| 2022-12-15 | 10:00 | 12:00 | Sten Velander, Teknikringen 33, floor 4, room 3412 | Optional seminar | EJ2201 - Optional seminar - speaker to be decided |
| 2022-12-16 | 13:00 | 15:00 | Sten Velander, Teknikringen 33, floor 4, room 3412 | Optional seminar | EJ2201 - Optional seminar - speaker to be decided |
Preparations before course start
Recommended prerequisites
• Electrical circuit analysis (for example EI1110 Electrical circuit analysis, extended course or EI1120 Electrical circuit analysis for the energy and environment program)
• Electromagnetic theory (for example EI1220 Electromagnetic theory E or EI1225 Electromagnetic theory, introductory course for energy and environment)
Literature
No information insertedSupport for students with disabilities
Students at KTH with a permanent disability can get support during studies from Funka:
Examination and completion
Grading scale
A, B, C, D, E, FX, F
Examination
- LAB2 - Laboratory work, 0.5 credits, Grading scale: P, F
- PROA - Project work, 5.5 credits, Grading scale: A, B, C, D, E, FX, F
Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.
The examiner may apply another examination format when re-examining individual students.
The section below is not retrieved from the course syllabus:
Laboratory work ( LAB2 )
Project work ( PROA )
Ethical approach
- All members of a group are responsible for the group's work.
- In any assessment, every student shall honestly disclose any help received and sources used.
- In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.
Further information
No information inserted
Contacts
Course Coordinator
Teachers
Teacher Assistants
Examiner
Round Facts
Start date
29 Aug 2022
Course offering
- Autumn 2022-50727
- Autumn 2022-50572
Language Of Instruction
English