Title :
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
fDate :
Aug. 30 2011-Sept. 1 2011
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;
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
