Application of Adaptive Model-Based Scheme for Harmonic Diagnosis and Compensation of Grid-Connected Converters

Cheng I. Chen, Yeong Chin Chen

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Detection of fundamental and harmonic components is important to the control, protection, and compensation applications of grid-connected converters for the power-quality purposes. The conventional frequency-domain methods often suffer from the problems of at least one-cycle delay and dependence on frequency resolution. On the other hand, the numerical stability and robustness to interference are the necessary factors in the time-domain methods. To resolve the aforementioned issues, an adaptive model-based scheme with short sliding analysis window is proposed to track the frequency deviation and modify the analysis model with the online-sampled data to extract time-varying harmonics. Through the synchronized detection and accurate extraction of harmonics, the performance of proposed technique can be verified with several field measurement cases.

Original languageEnglish
Article number7869320
Pages (from-to)770-777
Number of pages8
JournalIEEE Transactions on Industrial Electronics
Volume65
Issue number1
DOIs
StatePublished - Jan 2018

Keywords

  • Adaptive model-based scheme
  • Frequency deviation
  • Frequency-domain method
  • Grid-connected converters
  • Time-domain method
  • Time-varying harmonics

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