The Multiple-Peak MPPT Algorithm Based on the Gradient Algorithm and the P&O Algorithm
Year: 2014
Type: article
Abstract: When the PV array cascaded by multiple PV cells is partially covered,multiple local peak values may appear on the photovoltaic characteristics curve. In this case,the MPPT algorithm based on a single peak will likely fail. In response to this situation,this paper proposed a multiple- peak value MPPT algorithm,in which the gradient algorithm and perturbation and observation algorithm were combined. The method began with the search for the first power point by the gradient algorithm; then the power point was used as the starting point of the perturbation and observation algorithm in searching for the maximum local power point; and this local maximum power point was in turn employed to search for the maximum global power point. Compared with other multi- peak MPPT algorithms,the proposed algorithm was characterized not only by its easy programming and convenient implementation,but also by its fast searching and tracking speed and strong anti- interference ability.
Author: Tan Wei-f
Institution: Guangxi University
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2371458238