Modeling and analysis of an integrated PV array and SEPIC converter

Author

Geethalakshmi, B. ; Sreeram, P.

Author_Institution

Dept. of EEE, Pondicherry Eng. Coll., Pondicherry, India

fYear

2014

fDate

10-11 July 2014

Firstpage

76

Lastpage

80

Abstract

As the power demand and power failure increases, non-conventional energy sources are used to provide constant load. In this paper a new system comprising of single ended primary inductor converter (SEPIC) integrated with PV array is proposed. In the present work a model of PV array is developed and is employed as input to the SEPIC. The modeling of the SEPIC converter is developed and the operating principles under different modes, steady state analysis and design equations of the converter are described in detail. In the SEPIC, the power losses are greatly reduced due to zero-voltage-switching and zero-current-switching. SEPIC is operated at a switching frequency of 100 kHz under continuous conduction mode (CCM) is integrated with PV array. Simulation is carried out in MATLAB/Simulink software and the results are presented.

Keywords

DC-DC power convertors; photovoltaic power systems; zero current switching; zero voltage switching; CCM; SEPIC converter; continuous conduction mode; converter design equations; integrated PV array; single ended primary inductor converter; steady state analysis; zero-current-switching; zero-voltage-switching; Arrays; Capacitors; Inductors; Mathematical model; Photovoltaic systems; Voltage control; Buck-boost converter; SEPIC; maximum power point tracking; photovoltaic array; zero-current-switching (ZCS); zero-voltage-switching (ZVS);

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Instrumentation, Communication and Computational Technologies (ICCICCT), 2014 International Conference on

Conference_Location

Kanyakumari

Print_ISBN

978-1-4799-4191-9

Type

conf

DOI

10.1109/ICCICCT.2014.6992933

Filename

6992933