Half‐bridge Z‐source inverter based on T‐source configuration with continuous input current and a high boost factor

Abstract

SummaryThis paper proposes a new half‐bridge‐based impedance source inverter with coupled T‐shaped inductors. The proposed inverter has a continuous input current and a high boost factor. The proposed topology is thoroughly investigated, along with its operating modes and control system, and the boost factor equation is derived. Additionally, the operating modes' results are incorporated into the design of used components, such as capacitors and inductors. To determine the suggested topology's advantages and disadvantages, a comparison with similar topologies is made based on the number of power electronic devices employed, the boost factor, and the voltage stresses experienced by the components. On the base of these comparisons, it is concluded that the proposed half‐bridge‐based Z‐source inverter has a high boost factor, fewer power electronic components, and reduced voltage stresses. Following that, a power loss study is performed to ascertain the system's power losses and overall efficiency. The prototype's experimental results are considered to evaluate the proposed topology's correct performance.