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

Authors

  • Hachemi Rahmani Development Unit of Solar Equipments, UDES/EPST CDER, Tipaza ALGERIA
  • Sabri Boulouma Development Unit of Solar Equipments, UDES/CDER, Tipaza, Algeria
  • Mourad Haddadi LDCCP, Ecole Nationale Polytechnique, Algiers, Algeria

DOI:

https://doi.org/10.53907/enpesj.v4i1.179

Keywords:

Open-loop grid synchronization, Frequency estimation, grid-connected power inverter

Abstract

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.

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Published

2024-07-13

Issue

Vol. 4 No. 1 (2024): ENP Engineering Science Journal

Section

Article

License

Copyright (c) 2024 ENP Engineering Science Journal

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