Effect of distributed photovoltaic generation on short-circuit currents and fault detection in distribution networks: A practical case study

Alcalá-González, Daniel and García del Toro, Eva María and Mas-López, María Isabel and Pindado Carrion, Santiago (2021). Effect of distributed photovoltaic generation on short-circuit currents and fault detection in distribution networks: A practical case study. "Applied Sciences", v. 11 (n. 1); p. 405. ISSN 2076-3417. https://doi.org/10.3390/app11010405.

Description

Title: Effect of distributed photovoltaic generation on short-circuit currents and fault detection in distribution networks: A practical case study
Author/s:
  • Alcalá-González, Daniel
  • García del Toro, Eva María
  • Mas-López, María Isabel
  • Pindado Carrion, Santiago
Item Type: Article
Título de Revista/Publicación: Applied Sciences
Date: 2021
ISSN: 2076-3417
Volume: 11
Subjects:
Freetext Keywords: Coordination protection; distributed generation; photovoltaic resources; DigSILENT
Faculty: Instituto de Microgravedad Ignacio Da Riva (UPM)
Department: Sistemas Aeroespaciales, Transporte Aéreo y Aeropuertos
UPM's Research Group: Desarrollo y Ensayos Aeroespaciales DEA
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The increase in the installation of renewable energy sources in electrical systems has changed the power distribution networks, and a new scenario regarding protection devices has arisen. Distributed generation (DG) might produce artificial delays regarding the performance of protection devices when acting as a result of short-circuits. In this study, the preliminary research results carried out to analyze the effect of renewable energy sources (photovoltaic, wind generation, etc.) on the protection devices of a power grid are described. In order to study this problem in a well-defined scenario, a quite simple distribution network (similar to the ones present in rural areas) was selected. The distribution network was divided into three protection zones so that each of them had DG. In the Institute of Electrical and Electronic Engineers (IEEE) system 13 bus test feeder, the short-circuits with different levels of penetration were performed from 1 MVA to 3 MVA (that represent 25%, 50%, and 75% of the total load in the network). In the simulations carried out, it was observed that the installation of DG in this distribution network produced significant changes in the short-circuit currents, and the inadequate performance of the protection devices and the delay in their operating times (with differences of up to 180% in relation to the case without DG). The latter, that is, the impacts of photovoltaic DG on the reactions of protection devices in a radial distribution network, is the most relevant outcome of this work. These are the first results obtained from a research collaboration framework established by staff from ETSI Civil and the IDR/UPM Institute, to analyze the effect of renewable energy sources (as DG) on the protection devices of a radial distribution network.

More information

Item ID: 65945
DC Identifier: http://oa.upm.es/65945/
OAI Identifier: oai:oa.upm.es:65945
DOI: 10.3390/app11010405
Official URL: https://www.mdpi.com/2076-3417/11/1/405
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 25 Jan 2021 11:34
Last Modified: 25 Jan 2021 11:34
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