EJ2311 Modulation of Power Electronic Converters 6.0 credits
Effektelektronisk modulation
Modulation of power converters plays a decisive role in modern power electronics where low losses as well as dynamical requirements, harmonics and electromagnetic interference (EMI) are of great importance. The course covers synthesis and analysis of modulation methods for Voltage Source Converters (VSC).
| Educational level | Second cycle | Academic level (A-D) | D |
| Subject area |
Electrical Engineering |
Grade scale | P, F |
Course offerings
Autumn 12 for programme students
| Periods Autumn 12 | P2 (6.0 credits) | Application code | 50742 |
| Start date | 2012 week: 43 | End date | 2013 week: 1 |
| Language of instruction | English | Campus | KTH Campus |
| Number of lectures | 16 (preliminary) | Number of exercises | |
| Tutoring time | Daytime | Form of study | Normal |
| Number of places | No limitation | ||
| Course responsible |
Oskar Wallmark <owa@kth.se>
Staffan Norrga <norrga@kth.se> |
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| Target group | Degree Progr. in Electrical Engineering (CELTE, E) open for all programs |
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| Part of programme | |||
Autumn 12 for programme students
| Periods Autumn 12 | P2 (6.0 credits) | Application code | 51636 |
| Start date | 2012 week: 43 | End date | 2013 week: 1 |
| Language of instruction | English | Campus | KTH Campus |
| Number of lectures | 16 (preliminary) | Number of exercises | |
| Tutoring time | Daytime | Form of study | Normal |
| Number of places | No limitation | ||
| Course responsible |
Staffan Norrga <norrga@kth.se>
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| Teacher |
Hans-Peter Nee <hansi@kth.se>
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| Target group | Open only for industry student |
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Autumn 13 for programme students
| Periods Autumn 13 | P2 (6.0 credits) | Application code | 50914 |
| Start date | 2013 week: 45 | End date | 2014 week: 3 |
| Language of instruction | English | Campus | KTH Campus |
| Number of lectures | 16 (preliminary) | Number of exercises | |
| Tutoring time | Daytime | Form of study | Normal |
| Number of places | No limitation | ||
| Course responsible |
Staffan Norrga <norrga@kth.se>
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| Target group | Degree Progr. in Electrical Engineering (CELTE, E) open for all programs from year 3 |
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| Part of programme | |||
Autumn 13 for single courses students - To application
| Periods Autumn 13 | P2 (6.0 credits) | Application code | 10031 |
| Start date | 04/11/2013 | End date | 2014 week: 3 |
| Language of instruction | English | Campus | KTH Campus |
| Number of lectures | 16 (preliminary) | Number of exercises | |
| Tutoring time | Daytime | Form of study | Normal |
| Number of places * | 3 - 4 | ||
| *) The Course date may be cancelled if number of admitted are less than minimum of places. If there are more applicants than number of places selection will be made. | |||
| Course responsible |
Staffan Norrga <norrga@kth.se>
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| Target group | Degree Progr. in Electrical Engineering (CELTE, E) open for all programs from year 3 |
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Apply for this course at antagning.se through this
application link. Please note that you need to log in at antagning.se to finalize your application. |
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Learning outcomes
After the examination the student should be able to
- Define fundamental concepts in pulse-width modulation
- Describe differences between different principles of modulation regarding properties such as harmonics and dynamic conditions
- Know different carrier based modulation methods and their synthesis.
- Use different methods for analysis of carrier based modulation methods
- Calculate pulse-patterns for harmonic elimination
- Estimate stray losses in electrical machines due to harmonics.
Course main content
Circuit modelling, fundamental mathematics, Harmonics in single-phase and three-phase systems. Survey of modulation principles. Relation between modulation and the development of power-semiconductors. Carrier-based methods, SPWM and space vector modulation. Influence of sampling. Fixed pulse-patterns, harmonic elimination. Tolerance band modulation. Harmonics in power systems and electric railway traction, norms and standards. Influence of harmonics on electrical machines. Survey of harmonic filters.
Disposition
Lectures 16 h
Computer excercises 8 h
Laboratory work 4 h
The course is given in English.
Eligibility
Completed Bachelor's degree (180 higher education credits), or equivalent academic qualifications. Documented proficiency in English corresponding to English B/English 6.
Prerequisites
EJ2200 Electrical machines and drives and EJ2300 Power Electronics.
Literature
D. G. Holmes, T. Lipo., “Pulse Width Modulation for Power Converters”. Wiley Interscience.
Examination
- LAB1 - Laboratory Work, 1.0 credits, grade scale: P, F
- PRO1 - Project, 1.5 credits, grade scale: P, F
- PRO2 - Project, 1.5 credits, grade scale: P, F
- TEN1 - Examination, 2.0 credits, grade scale: P, F
Requirements for final grade
Projects and laboratory reports, written examination
Offered by
EES/Electrical energy conversion
Contact
Staffan Norrga
Examiner
Staffan Norrga <norrga@kth.se>
Version
Course plan valid from:
Autumn 10.
Examination information valid from:
Autumn 09.
