Overview of Open-Loop Frequency Estimation Techniques for Grid Synchronization of Single-Phase Power Converters

Open-loop synchronization techniques allow to overcome the stability issues to which closed-loop techniques are subject. Most open-loop techniques differ in their Quadratic Signal Generator and their frequency estimation method. In this paper, an overview of the main frequency estimation methods for...

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Bibliographic Details
Published inENP engineering science journal (En ligne) Vol. 4; no. 1; pp. 1 - 6
Main Authors Rahmani, Hachemi, Boulouma, Sabri, Haddadi, Mourad
Format Journal Article
LanguageEnglish
Published Ecole Nationale Polytechnique 13.07.2024
Subjects
frequency estimation
grid-connected power inverter
open-loop grid synchronization
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Summary:Open-loop synchronization techniques allow to overcome the stability issues to which closed-loop techniques are subject. Most open-loop techniques differ in their Quadratic Signal Generator and their frequency estimation method. In this paper, an overview of the main frequency estimation methods for single-phase power systems is presented. A description of each technique with their structure for numerical implementation is carried out. A comparative study of those frequency estimation methods is performed according to three test scenarios in order to evaluate the robustness of each method. Recommendations for the selection of the technique is given according to the simulation results.
ISSN:2716-912X
2773-4293
DOI:10.53907/enpesj.v4i1.179