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Utilizing synchrophasor-based supplementary damping control signals in conventional generator excitation systems
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems. (SmarTS Lab)
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems. (SmarTS Lab)
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems. Statnett. (SmarTS Lab)
2018 (English)In: Electric power systems research, ISSN 0378-7796, E-ISSN 1873-2046, Vol. 157, p. 157-167Article in journal (Refereed) Published
Abstract [en]

A supplementary function of Excitation Control Systems (ECSs) for synchronous generators is that of a Power System Stabilizer (PSS). The PSS implementation in these ECSs only allows the use of a limited type of pre-defined local input measurements and built-in PSS algorithms. To adapt existing ECSs to take advantage of synchrophasors technology, this paper proposes and implements a prototype wide-area damping controller (WADC) that provides synchrophasor-based damping input signals to existing ECSs. The developed WADC comprise (i) a real-time mode estimation module, (ii) synchrophasor’s communication latency computation module, and (iii) phasor-based oscillation damping algorithm executing in a real-time hardware prototype controller.

Through Real-Time Hardware-in-the-Loop (RT-HIL) simulations, it is demonstrated that synchrophasor-based damping signals from the WADC can be utilized together with a commercial ECS, thus providing new options for selection of the best feedback signal for oscillation damping.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 157, p. 157-167
Keywords [en]
Damping control; Excitation Control System; Latency compensation; Phasor measurement units; Power System Stabilizer; Real-Time Hardware-in-the-Loop simulation; Synchrophasors
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-220706DOI: 10.1016/j.epsr.2017.12.004ISI: 000425203500016Scopus ID: 2-s2.0-85039419939OAI: oai:DiVA.org:kth-220706DiVA, id: diva2:1170325
Note

QC 20180108

Available from: 2018-01-03 Created: 2018-01-03 Last updated: 2018-03-05Bibliographically approved

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