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AuthorPanahi, Habib
AuthorSanaye-Pasand, Majid
AuthorZamani, Reza
AuthorMehrjerdi, Hasan
Available date2022-11-14T10:49:07Z
Publication Date2020
Publication NameIEEE Transactions on Power Delivery
ResourceScopus
Resource2-s2.0-85097776443
URIhttp://dx.doi.org/10.1109/TPWRD.2020.3010160
URIhttp://hdl.handle.net/10576/36302
AbstractAdvances in renewable energy recourses technologies have paved the way for increased utilization of DC grids in modern power systems. In particular, high voltage DC (HVDC) transmission cables are used to harvest offshore energy. Since failure diagnosis and repair of the buried offshore cables under the sea bed involve quite laborious tasks, accurate fault location is of vital importance. This paper proposes a novel fault location method based on the synchronized measurement of conductors and sheaths currents in each terminal without requiring the voltage signal. Unlike the traveling-wave-based methods, the proposed method is developed for multi-terminal HVDC systems without requiring any high precision measurement infrastructure. The proposed method can be implemented for different system topologies as well as fault resistance and fault distance. The fault location method can provide accurate results even if 10 ms time window samples are imported into the proposed algorithm. In addition, accuracy of the fault location using the proposed method is not affected significantly by noisy condition. Different test systems have been simulated to evaluate performance of the proposed method in various scenarios. Obtained results confirm that the proposed practical method can provide the accurate fault location for all different scenarios and conditions. 1986-2012 IEEE.
SponsorThis work was supported by the National Priorities Research Program under Grant 11S-1125-170027 from the Qatar National Research Fund (a member of Qatar Foundation). Paper no. TPWRD-00061-2020.
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectAc/dc transmission system
cable sheath
fault location
multi-terminal systems
offshore energy
TitleA Novel DC Transmission System Fault Location Technique for Offshore Renewable Energy Harvesting
TypeArticle
Pagination2885-2895
Issue Number6
Volume Number35
dc.accessType Abstract Only


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