Asymmetrical transformer‐based embedded <i>Z</i> ‐source inverters

Z ‐source inverters are inverters with buck–boost capability that traditional inverters cannot match. Despite this ability, present Z ‐source topologies are burdened by some limitations such as chopping input current, high‐voltage stress and poor spectral performance at high gain. To improve their performances, a number of asymmetrical transformer‐based embedded Z ‐source inverters are proposed. Through theoretical derivation and experiments, the proposed inverters have been shown to draw a smooth input current and produce a high gain by varying the transformer turns ratio n . The range of variation for n depends on the inverter topology chosen, which in turn depends on the application under consideration.