Optimization and Control of Lumped Transmitting Coil-Based In-Motion Wireless Power Transfer Systems

Abstract

This thesis explores optimization and control aspects of in-motion electric vehicle charging. The vision is of an electrified roadway, where the vehicles can move and charge at the same time. The present systems have long tracks embedded in the roadway which transfer energy. This thesis explores smaller coils in the road, which has the promise of higher efficiency and lower volt ampere ratings. The promise can only be realized through optimized design and synchronized control of charging with respect to vehicle position. The existing design procedures lack comprehensiveness, require designer experience and use computationally costly 3D FEM algorithms. The proposed optimization algorithms are comprehensive, eliminates designer experience and employs analytical modeling. The control of power transfer is very much related to proper synchronization of the power transfer with vehicle position. Vehicle position detection can be inaccurate as well as costly. Thus, the idea is to develop a sensorless power transfer control, which can control the power transfer without the need of any position sensing