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

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    260-20-perez.pdf (1.329Mb)
    Identifiers
    URI: http://hdl.handle.net/11556/1004
    DOI: 10.24084/repqj18.260
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    Author/s
    Perez-Molina, M.J.; Eguia-Lopez, P.; Larruskain-Eskobal, M.; Etxegarai-Madina, A.; Apiñaniz Apiñaniz, S.
    Date
    2020
    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.
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    article

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