Online Fault Localization on Offshore Wind Farm Inter-Array Cable via Deconvolution-Based Fault Signal Restoration

Joonjae Han, Hobin Lim, Jae Yong Ahn, Yong June Shin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

With growing demands of offshore wind energy, condition assessment of power infrastructures in offshore wind farms becomes crucial. Among the electrical equipment, diagnostics of inter-array cables is essential owing to its role of interconnecting between the facilities and power transmission. In this paper, we propose a new online fault localization algorithm that locates a failure of cable by applying deconvolution to acquired signals considering the propagation characteristics of the cable. When propagated fault signals are acquired by the time-synchronized fault recorders located at both ends of the cable, the fault signals are restored in both directions for each unit distance based on the estimated cable transfer function. After the process of pairing the bidirectionally restored signal with the signal on the same point, the similarity between each paired signal is measured by normalized cross-correlation. Finally, the fault location is estimated from the point with the highest similarity. In order to verify the robustness of the proposed method, experiments estimating various locations of faults are conducted, and failure scenarios are emulated at every unit distance using a computational simulation tool. We expect that the proposed method can improve the reliability of system operation on wind farm.

Original languageEnglish
Title of host publicationDiagnostika 2024 - 2024 International Conference on Diagnostics in Electrical Engineering, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350361490
DOIs
Publication statusPublished - 2024
Event16th International Conference on Diagnostics in Electrical Engineering, Diagnostika 2024 - Pilsen, Czech Republic
Duration: 2024 Sept 32024 Sept 5

Publication series

NameDiagnostika 2024 - 2024 International Conference on Diagnostics in Electrical Engineering, Proceedings

Conference

Conference16th International Conference on Diagnostics in Electrical Engineering, Diagnostika 2024
Country/TerritoryCzech Republic
CityPilsen
Period24/9/324/9/5

Bibliographical note

Publisher Copyright:
© 2024 IEEE.

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials

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