Solar PV based High Gain Converter for Microgrid Applications

Abstract

A high gain Z-Source converter including an active switching capacitor is used in the solar system's front-end power conversion stage to produce the required DC bus voltage. A Z-source DC-DC converter with a high step-up capabilities and few device voltage stress is shown in the study. The converter is operating in discontinuous conduction mode (DCM). In comparison to a conventional converter, the model that was designed can increase voltage gain at the same duty ratio while decreasing voltage stress on the switch and diode at the same output condition. The structure of the converter is simple and the voltage stress on the extra capacitor and diode are lesser. The simulation findings validate the study and the converter's boost capacity.