분포형 광섬유 음향 센서 기반 HVDC 해저케이블 모니터링 기술 연구
A Study on HVDC Underwater Cable Monitoring Technology Based on Distributed Fiber Optic Acoustic Sensors
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
This study presents a novel monitoring technique for underwater high-voltage direct current (HVDC) cables based on the Distributed Acoustic Sensor (DAS). The proposed technique utilizes vibration and acoustic signals generated on HVDC cables to monitor their condition and detect events such as earthquakes, shipments, tidal currents, and construction activities. To implement the monitoring system, a DAS based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) system was designed, fabricated, and validated for performance. For the HVDC cable monitoring experiments, a testbed was constructed on land, mimicking the cable burial method and protective equipment used underwater. Defined various scenarios that could cause cable damage and conducted experiments accordingly. The developed DAS system achieved a maximum measurement distance of 50 km, a distance measurement interval of 2 m, and a measurement repetition rate of 1 kHz. Extensive experiments conducted on HVDC cables and protective facilities demonstrated the practical potential of the DAS system for monitoring underwater and underground areas.
Abstract
This study presents a novel monitoring technique for underwater high-voltage direct current (HVDC) cables based on the Distributed Acoustic Sensor (DAS). The proposed technique utilizes vibration and acoustic signals generated on HVDC cables to monitor their condition and detect events such as earthquakes, shipments, tidal currents, and construction activities. To implement the monitoring system, a DAS based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) system was designed, fabricated, and validated for performance. For the HVDC cable monitoring experiments, a testbed was constructed on land, mimicking the cable burial method and protective equipment used underwater. Defined various scenarios that could cause cable damage and conducted experiments accordingly. The developed DAS system achieved a maximum measurement distance of 50 km, a distance measurement interval of 2 m, and a measurement repetition rate of 1 kHz. Extensive experiments conducted on HVDC cables and protective facilities demonstrated the practical potential of the DAS system for monitoring underwater and underground areas.
참고문헌 (9)
- D. Valenza, "HVDC submarine power cable systems-state of the art and future development", IEEE Catalogue, 1, pp.283~287 (1995)
- T. Kwon, "Study for Maintenance of HVDC Submarine Cable", Proc. 2002KIEE Summer Conf., pp.557~559 (2002)
- Y. L. Lu, "Distributed vibration sensor based on coherent detection of phaseOTDR", J. Lightw. Technol, 28(22), pp.3243~3249 (2010)
- H. Wu, "Feature extraction and identification in distributed optical-fiber vibration sensing system for oil pipeline safety monitoring", Photonic Sens, 7(4), pp.305~310 (2017)
- C. Du, "A review of railway infrastructure monitoring using fiber optic sensors", Sens. Actuators A-Phys., 303, pp.111728~ (2020)
- L. Kirkcaldy, "Distributed Acoustic Sensing of Partial Discharge: Initial Findings", 10th Int. Conf. Insulated Power Cables, pp.1~6 (2019)
- A. Lv, "On-line monitoring system of 35 kV 3-core submarine power cable based on Φ-OTDR", Sens. Actuators A, Phys, 273, pp.134~139 (2018)
- X. Chen, "On-line status monitoring and surrounding environment perception of an underwater cable based on the phase-locked Φ-OTDR sensing system", Opt. Express, 30, pp.30312~30330 (2022)
- T. Parker, "Distributed Acoustic Sensing-A New Tool for Seismic Applications", Proc. of 74th EAGE Conf. Exhib, pp.293~00801 (2012)