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IEEE PowerTech 2017

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Tutorial 2: Power Quality - Academic Research with Practical Applications - Block 4

Sunday, 18 June 2017
15:30 - 17:00

Room 2.219/2.220

Organiser(s)Sarah Rönnberg, Luleå University of Technology, Sweden

Speaker(s)Sarah Rönnberg, Luleå University of Technology, Sweden; Math Bollen, Luleå University of Technology, Sweden

Abstract. Power quality as a modern research subject appeared somewhere around 1990 and it has from the beginning been very much driven by practical developments. The final aim of all work (research as well as practical) on power quality is to avoid interference between the grid and equipment connected to it. Changes in the power system (from LED lamps through large wind parks) make their impact often felt through deterioration of the power quality. This tutorial will give an overview of power quality, with reference to the different developments that impact the probability of interference. More detailed presentations will be given on three specific types of disturbances: voltage dips (short duration reductions in voltage magnitude); harmonics (stationary distortion in the voltage or current waveform at frequencies below 2 kHz); and supraharmonics (stationary distortion at frequencies between 2 kHz and 150 kHz). The latter subject has appeared less than 10 years ago as a separate research area and the interest for the subject is growing very quickly. For each of these types of disturbances, both research activities and practical applications will be discussed. An important role of academic work on power quality, and of this tutorial, is to create bridges between academic research and practical applications. This tutorial will be given by world-leading researchers on voltage dips and supraharmonics.


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