25 kV-50 Hz railway supply modelling for medium frequencies (0 – 5 kHz)

Caroline Stackler (1, 2) , Florent Morel (1, 3) , Philippe Ladoux (4) , Piotr Dworakowski (1)

1 SuperGrid Institute SAS
2 LAPLACE - LAboratoire PLasma et Conversion d'Energie
3 EE - Ampère, Département Energie Electrique
4 LAPLACE-CS - Convertisseurs Statiques

In this paper, a modelling method of a 25 kV-50 Hz railway line, in a frequency range from 0 to 5 kHz, is presented. A model is proposed to quantify current and voltage harmonics generated by traction converters in different points of the network. An equivalent circuit, taking into account the skin effect for time-domain simulations, is also proposed. A new model, based on state space representation and transfer functions is developed to simplify the study of the interactions between several trains circulating on a line sector. As an example, the amplitudes of the harmonics generated by on-board active rectifiers are computed at several points of the network for a given topology of the overhead line and several positions of two trains on a sector with a junction.

Mots clés: EMC; railway supply; state space representation; harmonic interactions; impedance; skin effect

Domaines: Energie électrique

Caroline Stackler, Florent Morel, Philippe Ladoux, Piotr Dworakowski. 25 kV-50 Hz railway supply modelling for medium frequencies (0 – 5 kHz). ESARS-ITEC, Nov 2016, Toulouse, France. pp.Electronique, ⟨10.1109/ESARS-ITEC.2016.7841330⟩. ⟨hal-01393585⟩