Method And System For Monitoring A Meshed Current Return Electrical Network For An Aircraft Made Of Composite Material

A device for identifying critical connection points in a meshed current return electrical network of an aircraft, said aircraft comprising at least one structure made of composite material, said electrical network comprising a plurality of conductive elements, said identification device comprising:

• a modelling module configured to model the electrical network by means of a graph comprising a plurality of nodes and a plurality of branches connecting these nodes, each node of the graph corresponding to a connection point between two elements of the network, each branch between two nodes representing an element of the network, said graph being represented by a matrix reflecting the topology of the network and comprising values of an electrical characteristic of the elements of the network represented by the branches of the graph;
• a determination module configured to determine the eigenvalues and eigenvectors of the matrix representing the graph;
• an estimation module configured to estimate, from the eigenvectors and eigenvalues of the matrix, and for each element of the network represented by a branch of the graph, a sensitivity of an electrical property determined between a source and a load that are connected to the electrical network at a disturbance in the value of the electrical characteristic of this element;
• and
• a determination module configured to determine, among the elements of the network, critical elements with regard to an operating state of the network, an element being determined as critical when the sensitivity of the electrical property estimated for this element exceeds a predetermined criticality threshold.