Solar energy is one of the most popular kinds of renewable energy sources. The efficiency of the photovoltaic (PV) system depends on many factors. One of them is the maximum power point tracker (MPPT) method implemented in the control unit. In practice, PV generators are often partially shaded or dynamically shaded by many kinds of objects. In these conditions it is difficult to find the maximum power point (MPP) on the P-V curve because of many local maxima, and the MPPT method performance may decrease. This paper presents a comparative study on seven commonly used MPPT methods under dynamic partial shading conditions. The experimental system was designed using a boost DC-DC converter, a monocrystalline PV module, a dsPIC-based control unit and a motorized linear guide. The results of the outdoor tests show that the Perturb and Observe (P&O) method have the best performances under dynamic partial shading conditions.

Experimental comparison of MPPT methods for PV systems under dynamic partial shading conditions

AGHAEI, MOHAMMADREZA;DOLARA, ALBERTO;GRIMACCIA, FRANCESCO;LEVA, SONIA;
2016

Abstract

Solar energy is one of the most popular kinds of renewable energy sources. The efficiency of the photovoltaic (PV) system depends on many factors. One of them is the maximum power point tracker (MPPT) method implemented in the control unit. In practice, PV generators are often partially shaded or dynamically shaded by many kinds of objects. In these conditions it is difficult to find the maximum power point (MPP) on the P-V curve because of many local maxima, and the MPPT method performance may decrease. This paper presents a comparative study on seven commonly used MPPT methods under dynamic partial shading conditions. The experimental system was designed using a boost DC-DC converter, a monocrystalline PV module, a dsPIC-based control unit and a motorized linear guide. The results of the outdoor tests show that the Perturb and Observe (P&O) method have the best performances under dynamic partial shading conditions.
EEEIC 2016 - International Conference on Environment and Electrical Engineering
9781509023196
9781509023196
Dynamic Shading; MPPT; Partial shading; Perturd and Observe; Photovoltaic; Energy Engineering and Power Technology; Renewable Energy, Sustainability and the Environment; Electrical and Electronic Engineering
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1005567
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 0
social impact