Voltage Support Experimental Analysis of a Low-Voltage Ride-Through Strategy Applied to Grid-Connected Distributed Inverters

Miguel Garnica, Luís García de Vicuña, Jaume Miret, Antonio Camacho and Ramón Guzmán
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Miguel Garnica: Department of Electronic Engineering, Technical University of Catalonia, 08800 Vilanova i la Geltrú, Spain
Luís García de Vicuña: Department of Electronic Engineering, Technical University of Catalonia, 08800 Vilanova i la Geltrú, Spain
Jaume Miret: Department of Electronic Engineering, Technical University of Catalonia, 08800 Vilanova i la Geltrú, Spain
Antonio Camacho: Department of Electronic Engineering, Technical University of Catalonia, 08800 Vilanova i la Geltrú, Spain
Ramón Guzmán: Department of Automatic Control, Technical University of Catalonia, 08800 Vilanova i la Geltrú, Spain

Energies, 2018, vol. 11, issue 8, 1-20

Abstract: In recent decades, different control strategies have been designed for the increasing integration of distributed generation systems. These systems, most of them based on renewable energies, use electronic converters to exchange power with the grid. Capabilities such as low-voltage ride-through and reactive current injection have been experimentally explored and reported in many research papers with a single inverter; however, these capabilities have not been examined in depth in a scenario with multiple inverters connected to the grid. Only few simulation works that include certain methods of reactive power control to solve overvoltage issues in low voltage grids can be found in the literature. Therefore, the overall objective of the work presented in this paper is to provide an experimental analysis of a low-voltage ride-through strategy applied to distributed power generation systems to help support the grid during voltage sags. The amount of reactive power will depend on the capability of each inverter and the amount of generated active power. The obtained experimental results demonstrate that, depending on the configuration of distributed generation, diverse inverters could have different control strategies. In the same way, the discussion of these results shows that the present object of study is of great interest for future research.

Keywords: active and reactive current injection; distributed generation; low-voltage ride-through; multiple inverters; voltage sags; voltage support (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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