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A new control strategy for low-voltage ride-through of three-phase grid-connected PV systems / Meghdad, Fazeli

The Journal of Engineering, Volume: 2019, Issue: 18, Pages: 4900 - 4905

Swansea University Author: Meghdad, Fazeli

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DOI (Published version): 10.1049/joe.2018.9254

Abstract

Power quality and current limitation are the most important aspects of the grid-connected power converters under fault. Since the distributed energy resources are widely used, fault management strategy is important for micro-grids applications. This paper presents a new control strategy for low-volt...

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Published in: The Journal of Engineering
ISSN: 2051-3305
Published: 26 - 27 September 2018, Copenhagen, Denmark The IET 7th International Conference on Renewable Power Generation 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa45066
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Abstract: Power quality and current limitation are the most important aspects of the grid-connected power converters under fault. Since the distributed energy resources are widely used, fault management strategy is important for micro-grids applications. This paper presents a new control strategy for low-voltage ride-through for 3-phase grid-connected photovoltaic systems. The proposed method, which is designed in a synchronous frame using positive and negative sequence components, can protect the inverter from overcurrent failure under both symmetrical and unsymmetrical faults and provides reactive power support. The method does not require a hard switch to switch from MPPT to a non-MPPT algorithm, which ensures a smooth transition.
College: College of Engineering
Issue: 18
Start Page: 4900
End Page: 4905