TY - JOUR
T1 - Optimization of perturbative PV MPPT methods through online system identification
AU - Manganiello, Patrizio
AU - Ricco, Mattia
AU - Petrone, Giovanni
AU - Monmasson, Eric
AU - Spagnuolo, Giovanni
PY - 2014/12/1
Y1 - 2014/12/1
N2 - The maximum power point (MPP) tracking function allows one to extract the maximum power from the photovoltaic (PV) system in any operating condition. The perturb and observe technique is one of the mainly used algorithms aimed at this function. Its performances depend on the values of the two design parameters, which are the amplitude and the frequency of the perturbations that it applies in identifying the position of the MPP. In this paper, a method for the online optimization of the perturbation period is presented. It is based on the identification of the whole system, including the PV source and the dc/dc converter controlling it. The system impulse and frequency responses are evaluated by using the cross-correlation method. Such a technique, as well as the tracking algorithm, is effectively implemented by using a field-programmable gate array, and it is validated by means of simulation and experimental results.
AB - The maximum power point (MPP) tracking function allows one to extract the maximum power from the photovoltaic (PV) system in any operating condition. The perturb and observe technique is one of the mainly used algorithms aimed at this function. Its performances depend on the values of the two design parameters, which are the amplitude and the frequency of the perturbations that it applies in identifying the position of the MPP. In this paper, a method for the online optimization of the perturbation period is presented. It is based on the identification of the whole system, including the PV source and the dc/dc converter controlling it. The system impulse and frequency responses are evaluated by using the cross-correlation method. Such a technique, as well as the tracking algorithm, is effectively implemented by using a field-programmable gate array, and it is validated by means of simulation and experimental results.
KW - DC-DC power converters
KW - photovoltaic systems
UR - http://www.scopus.com/inward/record.url?scp=84907462270&partnerID=8YFLogxK
U2 - 10.1109/TIE.2014.2317143
DO - 10.1109/TIE.2014.2317143
M3 - Article
AN - SCOPUS:84907462270
SN - 0278-0046
VL - 61
SP - 6812
EP - 6821
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 12
M1 - 6797917
ER -
