Description of the low frequency phenomena involved when connecting a 3 kW EV charger to the distribution network and their validation by on site tests

This paper describes the methodology developed for the simulation of phenomena observed when connecting a 3 kW single-phase slow charger of an electric vehicle (EV) to the LV distribution network, in the case of a domestic charging. Firstly, the modeling of the up-stream network, the filter, the boost with its power electronics, and the battery have been described; some points specifically have been addressed considering the representation of the non-linearity involved. Secondly, a particular focus has been made on the simulations performed when connecting a charger to the network, for different impedance values of the upstream network; a comparison between simulations and on site tests is presented that gives very satisfactory results.