Testing monitoring technologies on dynamic subsea power cables to detect mechanical failures
Résumé
The objective of this study is to challenge monitoring technologies for the detection of mechanical failures on dynamic cables for offshore wind farms. Tensile and cyclic bending tests were performed to generate mechanical failures. Thermal, acoustic and distributed (fiber optics) monitoring technologies were included in the test setup. Results analysis permitted to determine the performance of the sensors detection. Acoustic emission sensors and DAS were both able to detect armor wires failures during the tensile test. DTSS showed a potential for following cyclic bending loads using loose-tube fibers. DAS post-processing should be improved to retrieve armor breaking during bending tests.