Method and System for Locating Defects on an Electric Cable

Nassif Berrabah (1) , Qinghua Zhang (2)

1 EDF - EDF
2 I4S - Statistical Inference for Structural Health Monitoring

The present invention relates to a method for diagnosing defects on a cable, including the following steps: measuring parameters S of the cable; determining the apparent impedance of the cable as a function of the position z along the cable, from one end of the cable Zl(z), as well as from the other end of the cable Zr(z); determining an estimation of the linear resistance R(z) of the cable as a function of the position z along the cable; and detecting a defect on a cable when the estimated linear resistance R(z) deviates from a reference value.

Domaines: Automatique; Electromagnétisme

Nassif Berrabah, Qinghua Zhang. Method and System for Locating Defects on an Electric Cable. United States, Patent n° : EP3491400 (A1) US2019162772 (A1), CA3031872 (A1). 2019. ⟨hal-02447152⟩