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Centralized Versus Distributed State Estimation for Hybrid AC/HVDC Grid
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems.
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems.
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems.
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems.ORCID iD: 0000-0003-3946-7655
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2017 (English)In: IEEE International Conference on Innovative Smart Grid Technologies, (ISGT Europe 2017), IEEE conference proceedings, 2017, p. 2222-2227Conference paper, Published paper (Refereed)
Abstract [en]

The need of transmission grid expansion has drawn the attention towards high voltage DC (HVDC) as a solution.This brings new challenges for power system control application such as state estimation that are originally designed for AC power system. This papers studies centralized and distributed architecturesfor hybrid AC/HVDC state estimator (SE). Furthermore, the benefit of having bad data detection (BDD) and deploying phasor measurement units (PMU) in the state estimation are investigated. The method used for the SE is the weighted least square (WLS) method. The SE will be developed based on the power grid model ’The CIGRE B4 DC Grid Test System’. Theresults of the tests show that the addition of BDD and PMU improved the error of the estimated values. Furthermore the distributed architecture offered slightly less accurate AC values than the centralized.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2017. p. 2222-2227
Keywords [en]
HVDC transmission, phase measurement units, state estimation, voltage source converter, weighted least square
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-209842DOI: 10.1109/CDC.2017.8263974ISI: 000428016500076Scopus ID: 2-s2.0-85046282691OAI: oai:DiVA.org:kth-209842DiVA, id: diva2:1114919
Conference
IEEE International Conference on Innovative Smart Grid Technologies, (ISGT Europe 2017), 26 Sep - 29 Sep 2017, Torino, Italy
Funder
Knut and Alice Wallenberg FoundationSwedish Research Council
Note

QC 20171002

Available from: 2017-06-26 Created: 2017-06-26 Last updated: 2018-06-04Bibliographically approved

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Grahn, PontusBriggner, ViktorJohansson, LinusBabazadeh, DavoodNordström, Lars
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Citation style
  • apa
  • harvard1
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  • vancouver
  • Other style
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Output format
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