| Title |
The MPPT Control oh Photovoltaic System using FVSS-PO Method |
| Authors |
Jae-Sub Ko ; Dong-Hwa Chung |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2013.27.11.020 |
| Keywords |
Photovoltaic ; MPPT ; Fuzzy Control ; Step Size ; Variable Step Size |
| Abstract |
This paper proposes the maximum power point tracking(MPPT) control of photovoltaic system using fuzzy based variable step size perturbation & observation(FVSS-PO) method. Conventional PO and incremental conductance(IC)MPPT control algorithm generally uses fixed step size. A small fixed step size will cause the tracking speed to decrease and tracking accuracy of the MPP will decrease due to large fixed step size. Therefore, the fixed step size can't be satisfying both the tracking speed and the tracking accuracy. This paper proposes FVSS-PO MPPT algorithm that adjusts automatically step size of PO by fuzzy control according to operating conditions. The validity of MPPT algorithm proposed in this paper prove through compare with conventional PO MPPT algorithm. |