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Diode-assisted buck-boost voltage source inverter (VSI) boosts the dc source voltage by introducing a diode-capacitor network. With capacitive charging in parallel and discharging in series, it extends voltage regulation range and avoids extreme boost duty ratio. As for the unique structure, various pulse width modulation (PWM) strategies are provided with regarding to the chopped intermediate dc-link...
Diode-assisted buck–boost voltage source inverter (VSI) boosts the dc source voltage by introducing diode-assisted capacitor network. With parallel capacitive charging and series capacitive discharging, the new topology extends voltage regulation range and avoids extreme duty ratio of switching devices in the front boost circuit. As for the unique structure, various novel pulse-width modulation strategies...
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