TRANSIENT BASED METHOD FOR IDENTIFYING FAULTS IN A HIGH / MEDIUM VOLTAGE ELECTRIC POWER TRANSMISSION SYSTEM, FAULT IDENTIFICATION MODULE AND POWER TRANSMISSION SYSTEM

The invention relates to a transient based method for identifying faults in an electric power transmission and/ or distribution system (100) having at least one current transmission line (L12, L13, L23) comprising the following steps :- generation of a physical model of the at least one current transmission line (L12, L13, L23), the physical model depending on the fault parameters and describing the behavior of voltage and/or current transients due to the fault in the at least one current transmission line, fault parameters comprising a fault location parameter on said current transmission line (L12, L13, L23) and a fault impedance parameter,- measurement of voltage and/or currents evolution at least at one specific location in the said power system (100),- iterative simulation of the voltage and/or current evolution by the physical model at the measurement point with a set of fault parameters where at each step of iteration, simulated and measured voltage and/or current evolutions are compared and the set of fault parameters is adapted according to a convergence criterion,- identification of a fault with its fault parameters when convergence of the measured voltage and/or current evolutions and simulated voltage and/or current evolutions is reached in a limited number of iterations.