Bidirectional switch commutation for high frequency UPF matrix converter supplying Inductive Power Transfer system

There are abundant application for contactless power transfer in mechanical engineering, production technology, transportation and medical engineering; conventional systems are associated with the losses caused by high frequency multiple energy conversion and primary inverter. Therefore novel power electronic topologies for direct energy conversion are crucial for this application. The use of matrix converters for contactless energy transmission reduces the number of energy conversion steps, avoid voluminous and expensive electrolytic DC link capacitors and enable four quadrant operations. This paper proposes application of three phase to single phase matrix converter with sinusoidal input line current supplying a series resonant Inductive Power Transfer (IPT) device. Minimization of commutation steps regardless of the load current direction is one of the main merits of proposed topology.