An Improved Cuckoo Search Algorithm for Maximum Power Point Tracking of Photovoltaic Systems under Partial Shading Conditions
The problem of partial shading has serious effects on the performance of photovoltaic (PV) systems. Adding a bypass diode in shunt to each PV module avoids hot-spot phenomena, but causes multi-peaks in the power–voltage (<i>P–V</i>) characteristics of the PV array, which cause traditiona...
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doaj-80c80c0173b34550bbadfe7fd05cba862021-02-12T00:03:45ZengMDPI AGEnergies1996-10732021-02-011495395310.3390/en14040953An Improved Cuckoo Search Algorithm for Maximum Power Point Tracking of Photovoltaic Systems under Partial Shading ConditionsAli M. Eltamaly0Sustainable Energy Technologies Center, King Saud University, Riyadh 11421, Saudi ArabiaThe problem of partial shading has serious effects on the performance of photovoltaic (PV) systems. Adding a bypass diode in shunt to each PV module avoids hot-spot phenomena, but causes multi-peaks in the power–voltage (<i>P–V</i>) characteristics of the PV array, which cause traditional maximum power point tracking (MPPT) techniques to become trapped in local peaks. This problem has forced researchers to search for smart techniques to track global peaks and prevent the possibility of convergence at local peaks. Swarm optimization techniques have been used to fill this shortcoming; unfortunately, however, these techniques suffer from unacceptably long convergence time. Cuckoo search (CS) is one of the fastest and most reliable optimization techniques, making it an ideal option to be used as an MPPT of PV systems under dynamic partial shading conditions. The standard CS algorithm has a long conversion time, high failure rate, and high oscillations at steady state; this paper aims to overcome these problems and to fill this research gap by improving the performance of the CS. The results obtained from this technique are compared to five swarm optimization techniques. The comparison study shows the superiority of the improved CS strategy introduced in this paper over the other swarm optimization techniques.https://www.mdpi.com/1996-1073/14/4/953photovoltaicMPPTpartial shadingcuckoo searchoptimization techniques |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ali M. Eltamaly |
spellingShingle |
Ali M. Eltamaly An Improved Cuckoo Search Algorithm for Maximum Power Point Tracking of Photovoltaic Systems under Partial Shading Conditions Energies photovoltaic MPPT partial shading cuckoo search optimization techniques |
author_facet |
Ali M. Eltamaly |
author_sort |
Ali M. Eltamaly |
title |
An Improved Cuckoo Search Algorithm for Maximum Power Point Tracking of Photovoltaic Systems under Partial Shading Conditions |
title_short |
An Improved Cuckoo Search Algorithm for Maximum Power Point Tracking of Photovoltaic Systems under Partial Shading Conditions |
title_full |
An Improved Cuckoo Search Algorithm for Maximum Power Point Tracking of Photovoltaic Systems under Partial Shading Conditions |
title_fullStr |
An Improved Cuckoo Search Algorithm for Maximum Power Point Tracking of Photovoltaic Systems under Partial Shading Conditions |
title_full_unstemmed |
An Improved Cuckoo Search Algorithm for Maximum Power Point Tracking of Photovoltaic Systems under Partial Shading Conditions |
title_sort |
improved cuckoo search algorithm for maximum power point tracking of photovoltaic systems under partial shading conditions |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2021-02-01 |
description |
The problem of partial shading has serious effects on the performance of photovoltaic (PV) systems. Adding a bypass diode in shunt to each PV module avoids hot-spot phenomena, but causes multi-peaks in the power–voltage (<i>P–V</i>) characteristics of the PV array, which cause traditional maximum power point tracking (MPPT) techniques to become trapped in local peaks. This problem has forced researchers to search for smart techniques to track global peaks and prevent the possibility of convergence at local peaks. Swarm optimization techniques have been used to fill this shortcoming; unfortunately, however, these techniques suffer from unacceptably long convergence time. Cuckoo search (CS) is one of the fastest and most reliable optimization techniques, making it an ideal option to be used as an MPPT of PV systems under dynamic partial shading conditions. The standard CS algorithm has a long conversion time, high failure rate, and high oscillations at steady state; this paper aims to overcome these problems and to fill this research gap by improving the performance of the CS. The results obtained from this technique are compared to five swarm optimization techniques. The comparison study shows the superiority of the improved CS strategy introduced in this paper over the other swarm optimization techniques. |
topic |
photovoltaic MPPT partial shading cuckoo search optimization techniques |
url |
https://www.mdpi.com/1996-1073/14/4/953 |
work_keys_str_mv |
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