Title: Performance study of three synchronisation algorithms in renewable energy grid connected system

Authors: Chirine Benzazah; Loubna Lazrak; Mustapha Ait Lafkih

Addresses: Laboratory of Automatic, Energy Conversion and Microelectronics (LACEM), Faculty of Sciences and Technology, University of Sultan Moulay Slimane, B.P. 523 Beni-Mellal 23000, Morocco ' Laboratory of Automatic, Energy Conversion and Microelectronics (LACEM), Faculty of Sciences and Technology, University of Sultan Moulay Slimane, B.P. 523 Beni-Mellal 23000, Morocco ' Laboratory of Automatic, Energy Conversion and Microelectronics (LACEM), Faculty of Sciences and Technology, University of Sultan Moulay Slimane, B.P. 523 Beni-Mellal 23000, Morocco

Abstract: In grid connected applications, the efficiency of systems is strongly affected by the employed phase locked loop (PLL) strategy. This paper presents a comparative study of three PLL structures applied to a grid-connected renewable energy system with a nominal power of 7 MW. To select the suitable structure dedicated to previously mentioned application, we will evaluate the performance of the PLL techniques under distorted and unbalanced supply voltages. Several simulations test with a disturbed three phase utility grid using MATLAB-Simulink/SimpowerSystem are presented to valid the theoretical study.

Keywords: renewable energy; grid synchronisation; phase-looked-loop; PLL; harmonic distortions; unbalances.

DOI: 10.1504/IJPEC.2018.090680

International Journal of Power and Energy Conversion, 2018 Vol.9 No.2, pp.144 - 158

Received: 27 Jan 2016
Accepted: 16 Jun 2016

Published online: 19 Oct 2017 *

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