Inductive energy transfer — 3D space transformers analysis

Inductive Energy Transfer systems (IET) are becoming commonplace in electrical and electronics equipment. Increased growth of interest in electric vehicles EV and renewable energy sources, significantly changed the approach to vehicle. EV battery pack is no longer just a vehicle for the drive tank, but it is also a distributed storage for energy from the power grid. To ensure the automation of the flow of energy best fits is inductive contactless power supply system with bidirectional energy flow. These systems are based on inductively coupled resonant circuits and offer many properties that affect the high efficiency energy transfer. However, to develop a high-performance system for contactless energy transfer, is necessary a suitable transformer. The article presents the 3D modeling, the aim of which is to determine the inductance of the transformer system IET and the coefficient of magnetic coupling between them.