TY - JOUR
T1 - Modal online differential fault detection and localisation scheme for VSC-MTDC cable transmission
AU - Ashouri, Mani
AU - Da Silva, Filipe Faria
AU - Bak, Claus Leth
AU - Abdoos, Aliakbar
AU - Hosseini, Seyed Mehdi
N1 - Publisher Copyright:
© The Institution of Engineering and Technology 2020.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/10
Y1 - 2020/10
N2 - This study proposes a modal online differential fault detection and localization (MODF) scheme for VSC‐MTDC cable transmission. Modal theory is used to remove the coupling between layers of two‐core extruded high‐voltage direct current cable. As a result, the decoupled modes are determined and the modal matrix resulted. In high frequencies, the modes have different velocities, which result in a time difference between modal initial peaks. This time delay is used to design modal fault detection and localization scheme, which can work in a variety of strategies like pilot or non‐communicated protection systems, one‐sided or two‐sided relaying, and single‐zone or double‐zone relay settings. Novel modal time–distance characteristics are introduced for adjusting the zone setting of relays in the MODF scheme. Multiple faults are applied to the CIGRE VSC‐MTDC model in the real‐time digital simulator with a Beckhoff CX5130 controller in the hardware‐in‐the‐loop setup for testing the proposed MODF scheme. The advantages and weak points of each strategy are analyzed and compared for the modelled faults. Hilbert–Huang transform is used for the accurate detection of modal initial peaks. It is shown that the method gives accurate and selective results for a wide range of VSC‐MTDC configurations.
AB - This study proposes a modal online differential fault detection and localization (MODF) scheme for VSC‐MTDC cable transmission. Modal theory is used to remove the coupling between layers of two‐core extruded high‐voltage direct current cable. As a result, the decoupled modes are determined and the modal matrix resulted. In high frequencies, the modes have different velocities, which result in a time difference between modal initial peaks. This time delay is used to design modal fault detection and localization scheme, which can work in a variety of strategies like pilot or non‐communicated protection systems, one‐sided or two‐sided relaying, and single‐zone or double‐zone relay settings. Novel modal time–distance characteristics are introduced for adjusting the zone setting of relays in the MODF scheme. Multiple faults are applied to the CIGRE VSC‐MTDC model in the real‐time digital simulator with a Beckhoff CX5130 controller in the hardware‐in‐the‐loop setup for testing the proposed MODF scheme. The advantages and weak points of each strategy are analyzed and compared for the modelled faults. Hilbert–Huang transform is used for the accurate detection of modal initial peaks. It is shown that the method gives accurate and selective results for a wide range of VSC‐MTDC configurations.
UR - http://www.scopus.com/inward/record.url?scp=85091668105&partnerID=8YFLogxK
U2 - 10.1049/iet-gtd.2020.0437
DO - 10.1049/iet-gtd.2020.0437
M3 - Journal article
AN - SCOPUS:85091668105
SN - 1751-8687
VL - 14
SP - 4475
EP - 4487
JO - IET Generation, Transmission & Distribution
JF - IET Generation, Transmission & Distribution
IS - 20
ER -