Title :
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
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;
Conference_Titel :
Electrical and Electronics Engineers in Israel (IEEEI), 2010 IEEE 26th Convention of
Conference_Location :
Eliat
Print_ISBN :
978-1-4244-8681-6
DOI :
10.1109/EEEI.2010.5661961
