Author : Deepshikha and Rahul Kumar

The conventional Z-source inverter can be used for boosting the output voltage for the various applications of dc–ac,
ac–ac, dc–dc, and ac–dc power conversion. This paper presents the Z-source inverter with switched inductor instead of normal inductor of Z-network, which can provide high boost factor than the conventional Z-source inverter. This topology is implemented in MATLAB Simulink environment in order to evaluate the performance, the model is tested with different modulation indexes. The simple boost pulse width modulation scheme is used in the present work.

Keywords: z-source inverter; shoot through state; switched inductor; modulation index; boost factor; shoot through duty ratio; simple boost pulse width modulation