A Robust and Fast Synchronization Technique for Adverse Grid Conditions

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18 Citations (Scopus)


All grid-connected power converters require a device/algorithm for the synchronization with the utility grid. Among different synchronization techniques that have been proposed in recent years, the phase-locked loop (PLL) is probably the most popular one. The PLL, however, in its standard structure, has a limited filtering capability. A simple yet effective idea to deal with this problem is including additional filters in the PLL structure. In this paper, an adaptive filtering technique for including into the PLL structure is suggested. A systematic design approach for tuning the PLL control parameters is then presented. The effectiveness of the proposed PLL is finally verified through a comparative performance analysis with the state-of-the-art PLLs.
Original languageEnglish
Article number7775057
JournalIEEE Transactions on Industrial Electronics
Issue number4
Pages (from-to)3188-3194
Number of pages7
Publication statusPublished - Apr 2017


  • Grid-connected applications
  • Phase-locked loop (PLL)
  • Synchronization

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