Inductive Power Transfer System with Series Connected Primary and Independent Secondary Coils

In this paper, the adoption of the inductive power transfer technique is proposed to achieve contactless auxiliary power supply for power electronics building blocks of medium voltage converters. Due to the high degrees of design freedom and multiple parameters in the system with series connected transmitters, the optimization approach is proposed to realize high efficiency, constant output voltage and low reactive power, simultaneously. In addition, influence of various design parameters on the final design is explored. Finally, the analytical model and design procedure is verified through simulations.