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Analysis of Coordinated HVDC Control for Power Oscillation Damping
KTH, School of Electrical Engineering and Computer Science (EECS), Automatic Control.
KTH, School of Electrical Engineering and Computer Science (EECS), Automatic Control.ORCID iD: 0000-0001-9940-5929
ABB, Corp Res, Vasteras, Sweden..
Svenska kraftnat, R&D, Sundbyberg, Sweden..
2018 (English)In: Conference Record of the 3rd IEEE International Workshop on Electronic Power Grid, eGrid 2018, Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 19-24, article id 8598674Conference paper, Published paper (Refereed)
Abstract [en]

Controlling the active power of high-voltage de (HVDC) transmission that interconnects two asynchronous ac grids can be used to improve the power oscillation damping in both of the interconnected ac systems. Using one HVDC link, achievable performance are limited since control actions may excite modes of similar frequencies in the assisting network. However, with coordinated control of two or more HVDC links, the limitations can be circumvented. With decoupling control the system interactions can be avoided all together. This paper investigates the conditions suitable for decoupling control. It is also shown that decoupling between system modes can be achieved using a proportional controller. The control method is compared to decentralized and H-2 optimal control. The best control method for different system topologies is investigated by looking on input usage and stability following dc link failure.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018. p. 19-24, article id 8598674
Keywords [en]
Decoupling control, HVDC transmission control, interarea oscillations, mimo control, multivariable interaction, power oscillation damping
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-245094DOI: 10.1109/eGRID.2018.8598674ISI: 000458814700005Scopus ID: 2-s2.0-85061498773ISBN: 9781538676653 (print)OAI: oai:DiVA.org:kth-245094DiVA, id: diva2:1294656
Conference
3rd IEEE International Workshop on Electronic Power Grid, eGrid 2018; Charleston; United States; 12 November 2018 through 14 November 2018
Note

QC 20190308

Available from: 2019-03-08 Created: 2019-03-08 Last updated: 2019-11-14Bibliographically approved

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Björk, Joakim

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