NDLI: Synchronization of grid-connected renewable energy sources under highly distorted voltages and unbalanced grid faults

Content Provider	IEEE Xplore Digital Library
Author	Hadjidemetriou, L. Kyriakides, E. Blaabjerg, F.
Copyright Year	2013
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 (Blaabjerg, F.)
Abstract	Renewable energy sources require accurate and appropriate performance not only under normal grid operation but also under abnormal and faulty grid conditions according to the modern grid codes. This paper proposes a novel phase-locked loop algorithm (MSHDC-PLL), which can enable the fast and dynamic synchronization of the interconnected renewable energy system under unbalanced grid faults and under highly harmonic distorted voltage. The outstanding performance of the suggested PLL is achieved by implementing an innovative multi-sequence/harmonic decoupling cell in order to dynamically cancel out the oscillation of the positive sequence voltage vector, produced by the existence of unbalanced and harmonic distorted voltage. The fast and accurate response of the proposed PLL under abnormal grid conditions is very important for the appropriate synchronization and control of the interconnected renewable energy systems. Therefore, the performance of the new PLL can increase the quality of the injected power under abnormal conditions and in addition enable the renewable energy systems to provide the appropriate support to the grid under balanced and unbalanced grid faults.
Sponsorship	IEEE Ind. Electron. Soc.
Starting Page	1887
Ending Page	1892
File Size	1212366
Page Count	6
File Format	PDF
ISBN	9781479902248
ISSN	1553572X
DOI	10.1109/IECON.2013.6699419
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-10
Publisher Place	Austria
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phase locked loops Harmonic analysis Power harmonic filters Oscillators Vectors Harmonic distortion Synchronization unbalanced grid faults distorted voltage fault ride through operation grid side converter grid synchronization interconnected renewable energy systems phase-locked loop
Content Type	Text
Resource Type	Article

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