Dynamic analysis of photovoltaic system with MPP locus emulation

Author

Sokolov, Michael ; Green, Tim C. ; Mitcheson, Paul D. ; Shmilovitz, Doron

Author_Institution

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

fYear

2010

fDate

17-20 Nov. 2010

Abstract

In this paper the dynamic analysis of a photovoltaic system with an emulated load control scheme is provided by means of a linearized small-signal state-space model. The model is verified by comparing the results of the time-stepped component level simulation and the simulation of the linearized state-space model. The derived model helps determine the minimal time between iterations of Perturb and Observe algorithm for proper operation, on the basis of settling time. Also, a simple controller is suggested which performs well over a range of operating points.

Keywords

maximum power point trackers; perturbation techniques; photovoltaic power systems; power system control; state-space methods; MPP locus emulation; dynamic analysis; linearized small signal state space model; perturb and observe algorithm; photovoltaic system; Control systems; Inductors; Load flow control; Load modeling; Photovoltaic systems; Sun; Voltage control; Linear control loop; Linear systems; Load emulation; Maximum Power Point Tracking (MPPT); Modelling; Photovoltaic power systems; Power system control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Electronics Engineers in Israel (IEEEI), 2010 IEEE 26th Convention of

Conference_Location

Eliat

Print_ISBN

978-1-4244-8681-6

Type

conf

DOI

10.1109/EEEI.2010.5661961

Filename

5661961