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Mitigation of subsynchronous control interaction in series-compensated DFIG-based wind farms using a nonlinear partial feedback linearizing controller
conference contribution
posted on 2016-12-26, 00:00 authored by M A Chowdhury, Apel MahmudApel MahmudSubsynchronous control interaction (SSCI) is a fast growing electrical interaction between series-compensated transmission lines and power electronic converters of DFIGs that may destroy the machines if not prevented. Thus, a nonlinear controller is proposed in order to mitigate SSCI in series-compensated doubly-fed induction generator (DFIG)-based wind farms. Partial feedback linearization technique is utilized in developing the controller that involves a number of design steps. To evaluate the performance of the proposed controller, eigenvalue (modal) analysis and electromagnetic transient (EMT) simulation are performed on a 100 MW DFIG-based offshore wind farm connected to the grid through series-compensated lines. Eigenvalue study reveals the presence of several unstable subsynchronous modes with the PI controller while the system mostly retains stability with the use of the designed Partial feedback linearizing (PFL) controller unless the compensation level is too high (above 90%). EMT simulation, on the other hand, shows that the prevalent SSCI in the system with the PI controller is effectively damped through the use of the designed PFL controller in less than 2.3 s.
History
Event
IEEE PES Innovative Smart Grid Technologies - Asia. Conference (2016, Melbourne, Victoria)Series
IEEE PES Innovative Smart Grid Technologies - Asia ConferencePagination
335 - 340Publisher
IEEELocation
Melbourne, Vic.Place of publication
Piscataway, N.J.Publisher DOI
Start date
2016-11-28End date
2016-12-01eISSN
2378-8542ISBN-13
9781509043033Language
engPublication classification
E Conference publication; E1 Full written paper - refereedCopyright notice
2016, IEEEEditor/Contributor(s)
[Unknown]Title of proceedings
IEEE ISGT Asia 2016 : Proceedings of the IEEE PES Innovative Smart Grid Technologies - Asia 2016 ConferenceUsage metrics
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