A high voltage gain Z-sources DC-DC converter with soft switching and power factor correction by using PMSG based wind system

摘要

With the various growth in technologies wind energy system has also been get improved. Permanent-magnet synchronous generator (PMSGs) has special characteristics such as weight and low volume, elimination of the gearbox and high performances is used by these technologies. This project implements an impedance source converter for wind energy application to obtain high boosted DC output voltage with soft switching to reduce voltage stress and switching loss. The DC-DC converter output is passed to Full bridge inverter with power factor improvement to obtain the high gain AC voltage. The proposed converter, which employs a conventional Z-source network, can obtain higher voltage gain and provide the common ground for the input and output without any additional components, which results in increase in overall efficiency. In various conditions the output is compared with discussed and simulated using MATLAB software.