EJ3311 Effektelektronisk modulation 8,0 hp

Modulation of Power Electronic Converters

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).

  • Utbildningsnivå

    Forskarnivå
  • Huvudområde

  • Betygsskala

    P, F

Kurstillfällen/kursomgångar

VT19 för programstuderande

  • Perioder

    VT19 P3 (8,0 hp)

  • Anmälningskod

    61164

  • Kursen startar

    2019-01-15

  • Kursen slutar

    2019-03-15

  • Undervisningsspråk

    Engelska

  • Studielokalisering

    KTH Campus

  • Undervisningstid

    Dagtid

  • Undervisningsform

    Normal

  • Antal platser

    Ingen begränsning

Information för forskarstuderande om när kursen ges

Ges i samband med EJ2311 varje år P3

Lärandemål

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.

Kursens huvudsakliga innehåll

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.

Kursupplägg

Lectures 16 hours, computer exercises 8 hours, Laboratory work 4 hours,55 hours individualized project

Behörighet

Rekommenderade förkunskaper

EJ2200 Elektriska maskiner och drivsystem och EJ2300 Effektelektronik.

Litteratur

D. G. Holmes, T. Lipo., “Pulse Width Modulation for Power Converters”.Wiley Interscience.

Examination

  • EXA1 - Examination, 8,0, betygsskala: P, F

The individualized project should preferably be linked to the student’s own research.

Krav för slutbetyg

Projects and laboratory reports

Written examination

Ges av

EECS/Elkraftteknik

Kontaktperson

Hans-Peter Nee

Examinator

Hans-Peter Nee <hansi@kth.se>

Staffan Norrga <norrga@kth.se>

Versionsinformation

Kursplan gäller från och med VT2019.
Examinationsinformation gäller från och med VT2019.