Modeling of the contactless power collector for PRT (personal rapid transit) system

In this paper, the contactless power collection using electromagnetic induction for vehicle such as the PRT(personal rapid transit) system is suggested and some ideas for power collector design to improve the power transfer performance are presented. The proposed contactless power collector is used for the PRT system, which has a large air-gap and demands a large electrical power capability. But, low output power is generated due to a loosely coupled characteristic of the large air-gap. Therefore, double layer construction of secondary winding, which was divided in half to increase both output current and output voltage was suggested. Also, a model of power collector and parallel winding structure and a model of concentration/decentralization finding are presented; in addition, the performance of contactless power collector to alignment condition between the primary power line and the contactless power transformer was verified by computer simulation of 2 kW model.