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Identification of Reactive Power Provision Boundaries of a Distribution Grid with DFIGs to a Transmission Grid
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems. (Integration of Renewable Energy Sources (IRES))ORCID iD: 0000-0002-5263-1950
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems.ORCID iD: 0000-0002-8189-2420
2017 (English)In: IEEE Innovative Smart Grid Technologies (ISGT) Europe, 2017Conference paper, Published paper (Refereed)
Abstract [en]

Development of the distribution grids brings alsonew challenges. With efficient exploitation of all the availableresources in the grid, many related problems can be solved. Theproblem addressed in this paper is becoming more and morecommon in the practice. There is a need to control reactivepower exchange between the grids of different voltage levels. Thisneed becomes more pronounced with increasing penetration ofdistributed generation and cables in the system. But, the causeof the problem can be also a part of its solution. This papershows that it is possible to control the reactive power exchangeto a noticeable extent using the distributed generation locatedin the grid and the on-load tap changers. The results have beenobtained from the analysis of a representative model of Swedishdistribution network with installed DFIG wind turbines. Whilenot going deeper into the control strategies, the reactive powerboundaries of the system are identified. Critical elements arefound for different case scenarios. Solutions on adjustment ofreactive power capabilities of the grid are proposed.

Place, publisher, year, edition, pages
2017.
Keyword [en]
DFIG, reactive power provision, radial distribution grid, voltage control, wind power
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-219933OAI: oai:DiVA.org:kth-219933DiVA: diva2:1166052
Conference
IEEE Innovative Smart Grid Technologies (ISGT) Europe
Note

QC 20171214

Available from: 2017-12-14 Created: 2017-12-14 Last updated: 2017-12-14Bibliographically approved

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Stankovic, StefanSöder, Lennart

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