Robust STATCOM control for the enhancement of fault ride-through capability of fixed speed wind generators

M. J. Hossain, H. R. Pota, V. Ugrinovskii, Rodrigo A. Ramos

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

17 Citations (Scopus)

Abstract

In this paper, a novel robust controller for a Static Synchronous Compensator (STATCOM) is presented to enhance the fault ride-through (FRT) capability of fixed speed induction generators (FSIGs), the most common type of generators that can be found in wind farms. The effects of STATCOM rating and wind farm integration on FRT capability of FSIGs are studied analytically using the power-voltage and torque-slip relationships as well as through simulations. The wind generator is a highly nonlinear system, which is modelled in this work as a linear part plus a nonlinear part, the nonlinear term being the Cauchy remainder term in the Taylor series expansion and of the equations used to model the wind farm. Bounds derived for this Cauchy remainder term are used to define an uncertain linear model for which a robust control design is performed. The controller resulting from this robust design provides an acceptable performance over a wide range of conditions needed to operate the wind farm during severe faults. The performance of the designed controller is demonstrated by large disturbance simulations on a test system.

Original languageEnglish
Title of host publication2009 IEEE International Conference on Control Applications, CCA '09
Place of PublicationPistacaway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1505-1510
Number of pages6
ISBN (Electronic)9781424446025
ISBN (Print)9781424446018
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE International Conference on Control Applications, CCA '09 - Saint Petersburg, Russian Federation
Duration: 8 Jul 200910 Jul 2009

Other

Other2009 IEEE International Conference on Control Applications, CCA '09
CountryRussian Federation
CitySaint Petersburg
Period8/07/0910/07/09

Keywords

  • Fault-ride through
  • Induction generator
  • Nonlinearity
  • Robust control
  • STATCOM
  • Wind farms

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