ROCOV scheme for Fault Detection and Location in HVDC systems J. Díaz, O. Abarrategi, D.M. Larruskain, A. Perez-Basante and A. Rubio   2019/07/15

Abstract

A reliable DC fault protection system is essential for the development of HVDC grids. Therefore, this paper deals with the voltage derivative ROCOV scheme to locate and detect DC faults. The algorithm is able to differentiate internal and external faults considerably fast. The proposed algorithm is analyzed in a HVDC grid with different fault case scenarios. Finally, the ROCOV protection thresholds are discussed.

Authors and affiliations

J. Díaz1, O. Abarrategi1, D.M. Larruskain1, A. Perez-Basante2 and A. Rubio2
1. Department of Electrical Engineering. University of the Basque Country UPV/EHU, Bilbao (Spain)
2. Energy Unit, Tecnalia. Parque Tecnológico de Vizcaya, Derio (Spain)

Key words

DC fault, Detection, HVDC Grid, Location, ROCOV.

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