Power quality issues due to electronic lighting
2010 (English)Conference paper, Presentation (Refereed)
With the interest to reduce electrical energy consumption there is an upcoming shift from the traditional incandescent lamps to more energy efficient types of lighting. This has raised a concern of a possible adverse effect on the power grid as we replace a resistive load with an electronic one. The main concerns include harmonic distortion, losses in the grid, and displacement power factor (cos ). A set of measurements have been made in order to determent how a shift in lamps would affect a number of power quality parameters. The measurements have been conducted on a typical household base load consisting of a mix of lamps, TV, computers, heat and kitchen equipment. The measurements have been performed in the laboratory so as to have complete control over the load. A typical consumption pattern has been defined however so as to make the measurements both realistic and reproducible. In the initial stage the installation contains only incandescent lamps; in the final stage all incandescent lamps are replaced with a more energy efficient alternative. A second set of measurements have been made in a medium size hotel, with a load of over 500 incandescent lamps. The power quality has been monitored before, during and after all the lamps were replaced by 40 W equivalent LED lamps. This paper will focus on harmonic distortion up to 9 kHz as well as the affect a shift in lamps will have on the displacement power factor and on losses in the distribution grid.
Place, publisher, year, edition, pages
Research subject Electric Power Engineering; Energy Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-31155Local ID: 53d11560-bf29-11df-a707-000ea68e967bOAI: oai:DiVA.org:ltu-31155DiVA: diva2:1004385
Nordic Electricity Distribution and Asset Management Conference : 06/09/2010 - 07/09/2010
Godkänd; 2010; 20100913 (ronsar)2016-09-302016-09-30Bibliographically approved