In the cascaded H-bridge inverter (CHBI) with supercapacitor and dc-dc stage. inherent second-order harmonic power flows through each submodule (SM). causing fluctuations in both the dc-link voltage and the dc-dc current. There exist limitations in handling these fluctuations at variable output frequencies when employing proportional-integral (PI) control to the dc-dc stage. https://www.diegojavierfares.com/mega-sale-Boss-Kit-Suits-Ford-Falcon-EF-EL-1994-1996-XH-Ute-1997-BK183L-great-price/