Commissariat a L'energie Atomique Et Aux Energies Alternatives

Centre National De La Recherche Scientifique

Université Grenoble Alpes

Institut Polytechnique De Grenoble

Ibrahima Djigo

Vincent Heiries

Mikael Carmona

Mikaël Carmona

Olivier Michel

The present disclosure relates to a method for detecting an electric arc in an electrical system (), comprising the following steps: a) acquiring a signal () coming from at least one sensor () detecting acoustic waves in the system (); b) calculating, using an electronic processing device (), a first value representative of the error between the signal and a first projection of the signal in a first representation space defined by a first dictionary matrix; b) calculating, using the electronic processing device (), a second value representative of the error between the signal and a second projection of the signal in a second representation space defined by a second dictionary matrix; and d) determining, from the first and second values, whether an electric arc has been produced in the system.

Method and device for detecting an electric arc in an electrical system

The invention concerns a method and a system for detecting an electric arc in an electrical installation () equipped with at least one sensor () capable of detecting temporal acoustic signals produced by the electrical installation (), said method being characterised in that it comprises a device for analysis () configured to analyse any temporal acoustic signal () coming from said one or more sensors () by associating with said acoustic signal a corresponding parsimony measurement (m) whose value indicates whether the acoustic signal is an electrical arc signature or not.

System and method for detecting an electric arc

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Grenoble, France

Ibrahima Djigo