Patent ID: 8624561

Claim:
An inverter to convert a direct current (DC) power from a DC source to an alternating current (AC) power, the inverter comprising: a DC link capacitor; an input stage electrically coupled to the DC link capacitor, the input stage configured to be electrically coupled to the DC source to receive a DC input power therefrom and generate a DC output waveform; an output stage electrically coupled to the DC link capacitor and configured to convert the DC output waveform to an AC output waveform; and a controller electrically coupled to the input stage and the DC link capacitor, the controller configured to: (i) generate a dynamic reference signal as a function of a model of the DC link capacitor, (ii) generate a control signal as a function of the dynamic reference signal and a measurement signal indicative of an operational parameter of the DC link capacitor, and (iii) control the input stage using the control signal to control a flow of power to the DC link capacitor.