Improved low-voltage-ride-through capability of fixed-speed wind turbines using decentralised control of STATCOM with energy storage system

M. J. Hossain*, H. R. Pota, R. A. Ramos

*Corresponding author for this work

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

The design and implementation of a new control scheme for reactive power compensation, voltage regulation and transient stability enhancement for wind turbines equipped with fixed-speed induction generators (IGs) in large interconnected power systems is presented in this study. The low-voltage-ride-through (LVRT) capability is provided by extending the range of the operation of the controlled system to include typical post-fault conditions. A systematic procedure is proposed to design decentralised multi-variable controllers for large interconnected power systems using the linear quadratic (LQ) output-feedback control design method and the controller design procedure is formulated as an optimisation problem involving rank-constrained linear matrix inequality (LMI). In this study, it is shown that a static synchronous compensator (STATCOM) with energy storage system (ESS), controlled via robust control technique, is an effective device for improving the LVRT capability of fixed-speed wind turbines.

Original languageEnglish
Pages (from-to)719-730
Number of pages12
JournalIET Generation, Transmission and Distribution
Volume6
Issue number8
DOIs
Publication statusPublished - Aug 2012
Externally publishedYes

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