Investigation of two-step commutated resonant matrix converter supplying a contactless energy transmission system

This paper investigates a novel matrix converter technology, the two-step commutated resonant matrix converter loaded with a contactless energy transmission system. Based upon a basic description of the converter, the built prototype and measurements are presented. While the main benefit of the used commutation strategy - the minimization of commutation steps and independence from the sign of the load current - could be proved, several parasitic elements influence the commutation and surprisingly lead to some soft-turn off of the semiconductors. Detailed investigations make the individual parasitics and their special influence visible.