Open AccessFault detection of HVDC cable in multi‐terminal offshore wind farms using transient sheath voltage
Author(s) -
Ashrafi Niaki Seyed Hassan,
Hosseini Seyyed Mehdi,
Abdoos Ali Akbar
Publication year - 2017
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
eISSN - 1752-1424
pISSN - 1752-1416
DOI - 10.1049/iet-rpg.2016.0578
Subject(s) - offshore wind power , transient (computer programming) , fault (geology) , terminal (telecommunication) , engineering , hvdc converter station , marine engineering , electrical engineering , transmission system , electric power system , submarine pipeline , transmission (telecommunications) , high voltage direct current , power transmission , grid , capacitor , voltage , wind power , power (physics) , computer science , telecommunications , direct current , geology , seismology , physics , geotechnical engineering , operating system , geodesy , quantum mechanics
With respect to rapid growth of offshore wind power, multi‐terminal HVDC system is going to be an attractive way of the power transmission for remote and large offshore wind farms. Since the HVDC cables are the vital component of the multi‐terminal HVDC transmission system, an accurate and fast fault detection method is necessary for protection and maintaining uninterrupted power delivery to the main grid. This study presents a novel method to diagnose HVDC cable faults and unbalancing of DC capacitor bank in multi‐terminal voltage source converter HVDC systems for offshore wind farms. Transient voltage of cable sheath is investigated as a main parameter for detecting types of cable faults. Extensive simulations are performed on EMTDC‐PSCAD platform and the results show the effectiveness of the proposed technique.