NDLI: Benchmarking of phase locked loop based synchronization techniques for grid-connected inverter systems

Content Provider	IEEE Xplore Digital Library
Author	Yongheng Yang Hadjidemetriou, L. Blaabjerg, F. Kyriakides, E.
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Univ. of Cyprus, Nicosia, Cyprus (Hadjidemetriou, L.; Kyriakides, E.) \|\| Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark (Yongheng Yang; Blaabjerg, F.)
Abstract	Grid-connected renewables are increasingly developed in recent years, e.g. wind turbine systems and photovoltaic systems. Synchronization of the injected current with the grid is mandatory. However, grid disturbances like voltage sags, harmonics, and frequency deviations may occur during operation, becoming inevitable challenges to the synchronization of the grid-connected renewable energy systems. In order to ensure the quality of the power generation from the renewables, robust and reliable synchronization methods are in demand. Among the prior-art solutions, Phase Locked Loop (PLL) based synchronization methods have gained much popularity in grid-connected applications. However, an appropriate selection and thus a proper design of the selected PLL synchronization remain of interest in practice, especially for single-phase systems. Therefore, in this paper, a benchmarking of the main PLL synchronization methods for single-phase grid-connected inverter systems in terms of accuracy, dynamic response, harmonic immunity, etc., has been conducted. Experiments on a 1-kW single-phase grid-connected system, suffering from different grid disturbances, are performed for the benchmarking. The experimental results have verified the discussions.
Starting Page	2167
Ending Page	2174
File Size	946793
Page Count	8
File Format	PDF
ISBN	9788957082546
ISSN	21506086
DOI	10.1109/ICPE.2015.7168077
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-01
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Korean Institute of Power Electronics
Subject Keyword	T/4 delay PLL Transforms Harmonic analysis Inverters inverse park transform PLL Synchronization Phase locked loops multi-harmonic decoupling cell PLL enhanced PLL (EPLL) second order generalized integrator PLL (SOGI-PLL) Benchmark testing synchronization Phase locked loop (PLL) Delays
Content Type	Text
Resource Type	Article

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