Enhancing the Control of a DC/AC Converter for Voltage Perturbation Ride-Through in Compliance with the Cuban Grid Code

This paper presents the implementation of a low-voltage ride-through (LVRT) control system based on the Cuban grid code requirements. The developed control system works in conjunction with the typical internal control of three-phase inverters, where in the event of voltage sags and short-circuits, i...

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Bibliographic Details
Published in:	2024 6th Global Power, Energy and Communication Conference (GPECOM) pp. 68 - 73
Main Authors:	Dominguez, Julio Espinosa, Serban, Ioan, Breffe, Orlys Ernesto Torres
Format:	Conference Proceeding
Language:	English
Published:	IEEE 04-06-2024
Subjects:	Codes control Control systems grid code inverter Inverters Low voltage low voltage ride through Power quality Power system stability Renewable energy sources short-circuit unbalance
Online Access:	Get full text
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Summary:	This paper presents the implementation of a low-voltage ride-through (LVRT) control system based on the Cuban grid code requirements. The developed control system works in conjunction with the typical internal control of three-phase inverters, where in the event of voltage sags and short-circuits, it allows the converter to remain online for a reasonable time by injecting reactive current to improve the ride-through capability. The outcomes of the simulations show how the implemented control effectively adjusts the reactive current output in the event of a LVRT, in compliance with the Cuban grid code requirements. Furthermore, the control ensures synchronization with the grid following the event and manages any potential unbalances that may occur.
ISSN:	2832-7675
DOI:	10.1109/GPECOM61896.2024.10582679