Study of a generic topology for a double nonlinear resonant pole converter

Abstract

The advantages that can be achieved by using nonlinear capacitors in nonlinear resonant pole converters are shown. The double nonlinear resonant pole converter exhibits lower switching losses, reduced parasitic oscillations, and lower overrating of the switching devices. These advantages can be obtained by merely changing two existing linear capacitors for nonlinear capacitors. This should not increase the cost of the inverter, nor will any additional or different control schemes be needed. The advantages of the double nonlinear resonant pole phase arm increase with the increase in the nonlinearity coefficient of the capacitors.<>