| Abstract |
A new type of electric vehicle has been developed. It is based on an induction energy transfer, realised by an ironless transformer, at high frequency (5 to 100 kHz). The working frequency depends on the position of the vehicle, relative to the primaries and on the load. This is a consequence of the variation of the coupling between the primaries and the secondary relative to the position. This effect is increased with the load. The aim is to tune the frequency by measuring and maximising the power transmitted to the secondary. The way of tracking the maximum power consists in applying a frequency variation to the system and measuring the corresponding power variation. Therefore the optimal frequency is reached. Practical results are shown. |
