Preliminary analysis of MV cable line models for high frequency harmonic penetration studies

The large penetration of distributed generation requires accurate line and cable models in a frequency range much wider than the classical interval, 0-2.5 kHz, used for traditional harmonic and interharmonic penetration studies. In the paper, the behavior of MV cable lines is considered in the frequency range from 0 to 100 kHz, with reference to a casestudy. Models base on the classical Π and Γ line equivalent circuits are considered. Reference is made to open and short circuited line input terminals conditions. A comparison of the performances of different complexity models, in terms of impedance magnitude accuracy at output terminal, is developed.