SYSTEM FOR SUPPLYING POWER VIA THE GROUND FOR FREE-WHEELED ELECTRIC VEHICLES AND METHOD OF USE THEREOF

This system comprises a phase track (11) suitable for being brought to a supply voltage and a neutral track (12) for current return, the phase track being constituted of rectangular segments (11.i); a first voltage source (35) delivering a low supply voltage (V S1 ) and a second voltage source (36) delivering a high supply voltage (V S2 ), each segment being connected by a selection means (38) controlled either to the first source or to the second voltage source; a measuring means (40) suitable for measuring the speed of a vehicle traveling on a section (Dj) of a roadway equipped with the system; and a selection device (39) suitable for acquiring the speed measured by the measuring means, for comparing the measured speed to a threshold speed and for controlling the selection means as a function of the result of the comparison.