Novel T-Z source inverter with high voltage gain and reduced transformer turn ratio

Novel voltage source inverter based on the Z source inverter structure is introduced in this paper. In this new inverter, two inductors of the impedance network in conventional Z source inverter are replaced with two transformers or coupled inductors, but unlike the T-Z source inverter that it´s voltage gain is raised with increasing the transformers turn ratio, the voltage gain in the proposed inverter is raised with lowering the transformer turn ratio. Therefore, transformers with lower turn ratio are required in the proposed inverter in compare with T- Z source inverter that can lead to lower cost. The proposed inverter is analyzed in steady state and its voltage gain is obtained. The performance of the proposed inverter is verified with simulation results using the MATLAB/SIMULINK software.