project center in trichy
This paper proposes a new single-phase single-stage
switched-boost inverter with four switches. Like the quasi-Z-source inverter
(qZSI) and quasi-switched
boost inverter (qSBI), the proposed inverter has the main
features as continuous input current, buck/boost voltage with single-stage
conversion and shoot-through immunity. Compared to the qSBI, the proposed
inverter uses one more capacitor and one less switch. This paper presents the operating
principles, PWM control strategy, parameter design guidelines, and simulation
results for the proposed inverter. To verify the performance of the proposed inverter,
an 800 W prototype was built with an 110 V/50 Hz output voltage in stand-alone
and grid-connected modes. The simulation and experimental results matched those
of the theoretical analysis.
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