Analysis, Design and Investigation on a New Single-Phase Switched Quasi Z-Source Inverter for Photovoltaic Application

C. Bharatiraja (SRM University)
P. Sanjeevikumar (University of Johannesburg)
Aganti Mahes (SRM University)
Ayushi Saxena (SRM University)
K. Padmapriya (SRM University)
B. K. Mithra (SRM University)
AS Swathimala (SRM University)
S. Raghu (Department of Electrical Engineering, Water Resources Development and Management, IIT Roorkee)

International Journal of Power Electronics and Drive Systems (IJPEDS)
Vol 8, No 2: June 2017

This paper addresses the approach to improve the efficiency of the quasi  Z-source inverter. In order to increase the efficiency the reduction of conduction losses is one way to approach. Sequentially to decrease the conduction losses in the quasi z-source inverter the replacement of diode is replacing with switches is proposed which is also called as synchronous rectification. The paper represents basics of the approach, analysis  and comparison of the power losses of the traditional and proposed designs of the grid connected PV-system with quasi z-source inverter system. The proposed approach validated on the computer simulations in the MATLAB environment.