A discrete state-space model for SSR stabilizing controller design for TCSC compensated systems

TitleA discrete state-space model for SSR stabilizing controller design for TCSC compensated systems
Publication TypeJournal Article
Year of Publication2005
AuthorsKabiri, K., S. Henschel, J. R. Marti, and H. W. Dommel
JournalPower Delivery, IEEE Transactions on
Volume20
Pagination466 - 474
Date Publishedjan.
ISSN0885-8977
Keywordscompensation, control system synthesis, discrete state-space model, poincare mapping technique, power capacitors, sampled-data model, sampling frequency, sampling methods, stability, state-space methods, subsynchronous resonance stabilizing controller design, synchronous frequency, thyristor applications, thyristor firing angle, thyristor-controlled series capacitor
Abstract

A sampled-data model for a thyristor controlled series capacitor compensated system is derived for use in stabilizing controller design for subsynchronous modes of oscillation. The model is a refinement of the existing models based on the Poincare acute; mapping techniques already developed in the literature. The special features of the model are to increase the sampling frequency to six times the synchronous frequency and to directly express the small signal variation of the state of the whole system on the variation of the thyristor firing angles. The effectiveness of the model is shown by using it to design an all stabilizing controller for the IEEE First SSR Benchmark Model.

URLhttp://dx.doi.org/10.1109/TPWRD.2004.832385(410)%202
DOI10.1109/TPWRD.2004.832385(410) 2

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