Optimizing duty-cycle perturbation of P&O MPPT technique

In presence of rapidly changing atmospheric conditions, the Perturb and Observe (P&O) maximum power point tracking (MPPT) algorithm can be confused due to the fact that it is not able to distinguish the variations of the photovoltaic array output power caused by the duty cycle modulation from those ones caused by the irradiance variation. In this paper, it is shown that the negative effects associated to such a drawback can be greatly reduced if the magnitude of the duty-cycle perturbations is customized to the dynamic behavior of the specific DC-DC converter adopted to realize the P&O MPPT. As an example, a boost battery charger has been studied.

[1]  R. Dougal,et al.  Dynamic Multi-Physics Model for Solar Array , 2002 .

[2]  Toshihiko Noguchi,et al.  Short-current pulse-based maximum-power-point tracking method for multiple photovoltaic-and-converter module system , 2002, IEEE Trans. Ind. Electron..

[3]  I. Batarseh,et al.  DSP-based multiple peak power tracking for expandable power system , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[4]  Henry Shu-Hung Chung,et al.  A novel maximum power point tracker for PV panels using switching frequency modulation , 2002 .

[5]  T. Senjyu,et al.  Voltage-based maximum power point tracking control of PV system , 2002 .

[6]  Chien-Hsuan Chang,et al.  A fuzzy-logic-controlled single-stage converter for PV-powered lighting system applications , 2000, IEEE Trans. Ind. Electron..

[7]  Pallab Midya,et al.  Dynamic maximum power point tracker for photovoltaic applications , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[8]  Kostas Kalaitzakis,et al.  Development of a microcontroller-based, photovoltaic maximum power point tracking control system , 2001 .

[9]  K. Irisawa,et al.  Maximum power point tracking control of photovoltaic generation system under non-uniform insolation by means of monitoring cells , 2000, Conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists Conference - 2000 (Cat. No.00CH37036).

[10]  Jongrong Lin,et al.  Implementation of a DSP-controlled photovoltaic system with peak power tracking , 1998, IEEE Trans. Ind. Electron..

[11]  Tsutomu Hoshino,et al.  Maximum photovoltaic power tracking: an algorithm for rapidly changing atmospheric conditions , 1995 .