Efficiency improvement of a high step up high efficiency converter for photovoltaic applications based on three-state switching cell

Author

Babaee Zarch, M.J. ; Zolghadri, Mohammad Reza ; Hajimoradi, M.R.

Author_Institution

Sharif Univ. of Technol., Tehran, Iran

fYear

2013

fDate

13-14 Feb. 2013

Firstpage

454

Lastpage

458

Abstract

This paper suggests methods for improving efficiency of a high step up high efficiency converter based on three state commutation cells. A loss analysis has been performed to identify the source of power loss. Based on this analysis, methods are presented to reduce losses in the most power dissipating elements. These methods include replacing some power diodes with large conduction losses with MOSFETs having small on-state resistance. Efficiency improvement up to %1.25 percent is verified in simulation and experimental results.

Keywords

MOSFET; commutation; diodes; photovoltaic power systems; power convertors; MOSFET; high step up high efficiency converter; loss analysis; photovoltaic applications; power dissipating elements; power loss source; three state commutation cells; three-state switching cell; Capacitors; Inductors; Lead; Logic gates; MOSFET; Switches; Zero voltage switching; Efficiency improvement; High step up DC/DC converter; photovoltaic;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Drive Systems and Technologies Conference (PEDSTC), 2013 4th

Conference_Location

Tehran

Print_ISBN

978-1-4673-4481-4

Electronic_ISBN

978-1-4673-4483-8

Type

conf

DOI

10.1109/PEDSTC.2013.6506751

Filename

6506751