Title :
A modification of variable step size INC MPPT in PV system
Author :
Rahman, Nurul Huda Abdul ; Omar, A.M. ; Saat, E. H. Mat
Abstract :
The fixed step maximum power point tracking (MPPT) is extensively applied due to simple and easy to execute. This paper presents variable step size (VSS) applied to MPPT to improve tracking speed and accuracy. Nevertheless, there are drawbacks in conventional VSS between time response and power oscillation. A modified VSS using incremental conductance (INC) algorithm technique is proposed which solve the trade-off between time response and power oscillation. The proposed method is implemented using PIC18F4520 and verified experimentally.
Keywords :
maximum power point trackers; photovoltaic power systems; INC algorithm technique; PIC18F4520; PV system; VSS; fixed step MPPT; incremental conductance; maximum power point tracking; power oscillation; time response; variable step size; Algorithm design and analysis; Equations; Mathematical model; Maximum power point trackers; Oscillators; Temperature; Time factors;
Conference_Titel :
Power Engineering and Optimization Conference (PEOCO), 2013 IEEE 7th International
Conference_Location :
Langkawi
Print_ISBN :
978-1-4673-5072-3
DOI :
10.1109/PEOCO.2013.6564569
