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Elkvalitet – översikt och genomgång

Publicerad: 6 februari 2018

7.5 hp, startar 18-20 juni 2017 i Skellefteå. Kursen pågår mellan juni – december, 2018.


Kursnamn: Power quality – overview and details

Högskolepoäng: 7.5hp

Examinator: Prof. Math Bollen

Förkunskapskrav: General knowledge on electric power system and basic calculation methods in electric powersystems


1. Knowledge and understanding

Overall knowledge and understanding of power quality as an essential part in the design and operation of a modern power system.

Detailed knowledge and understanding of origin, propagation and consequences of the main power-quality disturbances (see list under “course contents”, below).

Overall understanding of the principles of power quality standards and regulation.

Understanding of the basic principles behind signal-processing applications in power quality, both where it concerns common methods and where it concerns research.

Knowledge and understanding of the basics and details of power-quality monitoring.

2. Skills and abilities

Ability to perform basic calculations related to the main power-quality disturbances.

Ability to interpret measurement and simulation results related to the main power-quality disturbances.

3. Assessment and attitude

Insight in practical and theoretical aspects of power quality from one of the globally-leading experts in the field.

Insight in the state of the art of research on power quality.

Insight in the kind of power-quality disturbances that are of importance for different kind of customers in modern power systems.

Insight in the need for further development and research on power quality.


The following subjects will be presented and discussed as part of the course:

  • Introduction and overview of power quality
  • Voltage dips
  • Voltage swells
  • Short interruptions
  • Long interruptions – reliability
  • Waveform distortion – harmonics
  • Interharmonics
  • Supraharmonics
  • Slow voltage variations – distribution planning
  • Fast voltage variations – light flicker
  • Voltage and current unbalance
  • Power quality standardization and regulation
  • Power quality monitoring
  • Signal processing of power-quality signals

For each of these subjects, the material presented will be a combination of practical issues (problems and mitigation methods), calculation and simulation methods, status of ongoing research and remaining (practical and research) challenges.

Genomförande: The course will start with three days of lectures mainly by Math Bollen. This will be followed by a number of assignments each concentrating on certain details and follow up lectures (some of which may be via video link).

The course will completely be given in English.

Examinationsform: Attendance of the lectures; participation in the discussions; completion of assignments

Betygsskala: G/U


Kurstid: juni 2018 — december 2018

Ort: Skellefteå.

Ansökan till: e-mail to sarah.ronnberg@ltu.se

Ansökan senast: 17 maj 2018

Kontaktperson: Sarah Rönnberg, sarah.ronnberg@ltu.se

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