The work during the thesis focused on the modeling and calculation of high frequency (HF) behavior in the power cables. These physical phenomena involved combining capacitive and inductive as well as the effects of skin and proximity effects. To account for this behavior, we use an approach based on equivalent circuits based on linear parameters that vary depending on the frequency approach. The determination of the equivalent circuit elements was performed by solving electrostatic problems and magnetoharmonic using the finite element method. Then we worked on the Transmission Lines Method (TLM) associated with a modal approach to determine the resonance frequencies of the system taking into account the interconnections to the ends of cable. We have implemented the above method for several types of electric cable: shielded wire, shielded 4 wires, three phases AC and finally the HVDC cable. The HF behavior of these cables has been studied using the developed approach.
