Active buck-boost inverter for inverter air conditioner applications

This paper introduces an active buck-boost inverter with various line conditions and working in both buck and boost modes. Inverter is developed with full bridge and boost AC/AC unit. The circuit is composed of active switches and both stages share the same inductor and capacitor. This inverter gives a high efficiency and low cost. It is used in inverter air conditioner applications. This control scheme provides low power consumption. Operational analysis of both buck and boost modes are presented, and the modulation applied in the ABI is also developed. Simulation results are included to verify this topology.