Small-signal model of photovoltaic power converter for selection of Perturb and Observe algorithm step time

Author

Sokolov, M. ; Green, T.C. ; Mitcheson, Paul D. ; Shmilovitz, D.

Author_Institution

Dept. of Electr. & Electron. Eng., Imperial Coll. London, London, UK

fYear

2011

fDate

Aug. 30 2011-Sept. 1 2011

Firstpage

1

Lastpage

5

Abstract

This paper describes small-signal analysis of a photovoltaic boost converter with an emulated load controller and a resistive load. The simulation results of the derived model are compared to time-domain large-signal simulation results for verification. This analysis helps select the time interval between iterations of Perturb and Observe algorithm. It was found that output voltage takes longer time to reach steady-state than input voltage and current, however, the Perturb and Observe algorithm step time can be shorter than output voltage convergence time.

Keywords

load regulation; photovoltaic power systems; power convertors; power system simulation; time-domain analysis; emulated load controller; observe algorithm; perturb algorithm; photovoltaic boost converter; photovoltaic power converter; resistive load; small-signal analysis; time-domain large-signal simulation; Arrays; Load modeling; Photovoltaic systems; Simulation; Steady-state; Sun; Control methods for electrical systems; Modelling; Photovoltaic; Renewable energy systems; Solar cell system;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on

Conference_Location

Birmingham

Print_ISBN

978-1-61284-167-0

Electronic_ISBN

978-90-75815-15-3

Type

conf

Filename

6020122