Modeling, Tuning, and Performance Comparison of Second-Order-Generalized-Integrator-based FLLs

Saeed Golestan, Josep M. Guerrero, Juan Carlos Vasquez Quintero, Abdullah M. Abusorrah, Yusuf Al-Turki

Research output: Contribution to journalJournal articleResearchpeer-review

143 Citations (Scopus)
338 Downloads (Pure)

Abstract

The second-order-generalized-integrator-based freq-uency-locked loop (SOGI-FLL) is a well-known tool for filtering and synchronization purposes in the power and energy applications. The SOGI-FLL, nevertheless, has a limited ability in rejecting the grid voltage disturbances. To deal with this problem, two advanced SOGI-FLLs have been proposed recently. In the first one, a SOGI-based filter is included inside the standard SOGI-FLL control loop, and in the second one, a SOGI-based filter is employed as the prefiltering stage of the SOGI-FLL. The small-signal modeling, tuning procedure, and detailed performance comparison of these advanced SOGI-FLLs have not been carried out yet. The aim of this paper is to cover these issues.
Original languageEnglish
Article number8295261
JournalI E E E Transactions on Power Electronics
Volume33
Issue number12
Pages (from-to)10229-10239
Number of pages11
ISSN0885-8993
DOIs
Publication statusPublished - Dec 2018

Keywords

  • Filters
  • frequency estimation
  • frequency-locked loop (FLL)
  • phase detection
  • second-order generalized integrator (SOGI)
  • synchronization

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