A new power converter for ISA 42 V powernet system using matrix converter theory and Z-source inverter concepts

This paper proposes a new converter for the 42 V ISA system. The problem of the low voltage rating of the AC machine developing regulated 42 V with input power factor correction has bee addressed in this paper. The proposed converter uses a matrix converter coupled with a Z-source inverter which achieves boost mode operation DC-AC conversion and buck AC-DC operation allowing the peak voltage of the AC motor to exceed the 42 V DC bus voltage substantially. The AC side operates with near unity power factor. The paper investigates the quadrant operation of the converter, its control, and its steady-state performance.