Fault detection based on ROCOV in a multi-terminal HVDC grid

Authors

  • M.J. Pérez Molina Author
  • P. Eguia Lopez Author
  • D.M. Larruskain Author
  • A. Etxegarai Author
  • S. Apiñaniz-Apiñaniz Author

DOI:

https://doi.org/10.24084/repqj18.260

Keywords:

HVDC grid, ROCOV, fault detection, protection system, VSC

Abstract

Protection of a meshed VSC-HVDC grid is a challenge due to the behaviour of DC current and voltage signals during fault conditions. Protection systems must operate in a very short time range. Since fault detection should be very fast, local measurement based algorithms are mostly used; communication based algorithms lack the needed speed as a result of the communication time delay. This way, a ROCOV algorithm is proposed in this paper. This algorithm is analysed for different fault conditions.

Author Biographies

  • M.J. Pérez Molina

    Department of Electrical Engineering, Faculty of Engineering of Bilbao,

    Universidad del País Vasco UPV/EHU. Spain

  • P. Eguia Lopez

    Department of Electrical Engineering, Faculty of Engineering of Bilbao,

    Universidad del País Vasco UPV/EHU. Spain

  • D.M. Larruskain

    Department of Electrical Engineering, Faculty of Engineering of Bilbao,

    Universidad del País Vasco UPV/EHU. Spain

  • A. Etxegarai

    Department of Electrical Engineering, Faculty of Engineering of Bilbao,

    Universidad del País Vasco UPV/EHU. Spain

  • S. Apiñaniz-Apiñaniz

    Energy Unit, Tecnalia Parque Tecnológico de Vizcaya. Spain

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Published

2024-01-12

Issue

Vol. 18 No. 2 (2020)

Section

Articles