Brillouin distributed temperature sensing system for monitoring of submarine export cables of off-shore wind farms

Benjamin Marx; Alexander Rath; Frederick Kolm; Andreas Schröder; Christian Buntebarth; Albrecht Dreß; Wieland Hill

doi:10.1117/12.2236622

30 May 2016 Brillouin distributed temperature sensing system for monitoring of submarine export cables of off-shore wind farms

Benjamin Marx, Alexander Rath, Frederick Kolm, Andreas Schröder, Christian Buntebarth, Albrecht Dreß, Wieland Hill

Author Affiliations +

Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 99162U (2016) https://doi.org/10.1117/12.2236622
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

Abstract

For high-voltage cables, the maximum temperature of the insulation must never be exceeded at any location and at any load condition. The local temperatures depend not only on the cable design and load history, but also on the local thermal environment of the cable. Therefore, distributed temperature monitoring of high-voltage cables is essential to ensure the integrity of the cable at high load. Especially, the load of the export cables of wind farms varies strongly in dependence on weather conditions. In this field study, we demonstrate the measurement performance of a new, robust Brillouin distributed temperature sensing system (Brillouin-DTS). The system is based on spontaneous Brillouin scattering and does not require a fibre loop. This is essential for long submarine high-voltage cables, where normally no loop can be formed in the seabed. It is completely passively cooled and does not contain any moving or wearing parts. The instrument is dedicated for use in industrial and other rough environments. With a measuring time below 10 min, the temperature resolution is better than 1 °C for distances up to 50 km. In the field study, the submarine export cable of an off-shore wind farm has been monitored. The temperature profile of the export cable shows several hot spots, mostly located at cable joints, and also several cold spots.

Citation Download Citation

Benjamin Marx, Alexander Rath, Frederick Kolm, Andreas Schröder, Christian Buntebarth, Albrecht Dreß, and Wieland Hill "Brillouin distributed temperature sensing system for monitoring of submarine export cables of off-shore wind farms", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99162U (30 May 2016); https://doi.org/10.1117/12.2236622

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available