Influence of Negative Sequence Injection Strategies on Faulted Phase Selector Performance

Villén, María Teresa ; Comech, Maria Paz (Universidad de Zaragoza) ; Martinez Carrasco, Eduardo ; Prada Hurtado, Aníbal Antonio

Resumen: Renewable power is expected to increase drastically in the coming years due to the energy transition. A large part of the newly installed generators will be connected to the power system through inverters and electronic converters, whose behaviour differs from the generators connected synchronously to the network. One of the main differences is the current contribution during symmetrical and asymmetrical faults which can affect protection systems. New grid codes establish requirements for fast current injection, but the converter’s maximum current limitations during faults make it difficult to establish control strategies for such current contribution. This paper studies the performance of faulted phase selector algorithm of a commercial relay under the current contribution from renewables before unbalanced faults. Two positive and negative sequence current injection strategies in compliance with new Spanish grid code requirements are proposed and tested under fault conditions in HiL (Hardware in the Loop). Test results show that the selected injection strategy affects the fault phase identification algorithm. Furthermore, the negative sequence injection requirements established in the new grid code improve the relay performance when line-to-line faults are applied, but they are not enough to identify all fault types.

Idioma: Inglés

DOI: 10.3390/en15166018

Año: 2022

Publicado en: Energies 15, 16 (2022), 6018 [19 pp.]
ISSN: 1996-1073

Factor impacto JCR: 3.2 (2022)

Categ. JCR: ENERGY & FUELS rank: 80 / 119 = 0.672 (2022) - Q3 - T3

Factor impacto CITESCORE: 5.5 - Engineering (Q1) - Energy (Q2) - Mathematics (Q1)

Factor impacto SCIMAGO: 0.632 - Engineering (miscellaneous) (Q1) - Electrical and Electronic Engineering (Q2) - Energy (miscellaneous) (Q2) - Renewable Energy, Sustainability and the Environment (Q2) - Fuel Technology (Q2) - Control and Optimization (Q2) - Energy Engineering and Power Technology (Q2)

Financiación: info:eu-repo/grantAgreement/EC/H2020/864579/EU/Interoperable solutions for implementing holistic FLEXIbility services in the distribution GRID/FLEXIGRID

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Ingeniería Eléctrica (Dpto. Ingeniería Eléctrica)