Intelligent series inducing switching scheme (ISISS) to enhance power delivery in shaded photovoltaic array
ISSN: 0305-6120
Article publication date: 31 May 2022
Issue publication date: 8 November 2023
Abstract
Purpose
The aim of this research study is to mitigate shading impact on solar photovoltaic array. Photovoltaic (PV) array when getting shaded not only results in appreciable power loss but also exhibits multiple power peaks. Due to these multiple power peaks, the maximum power point tracking (MPPT) controllers’ performance will be affected, as most of the times it ends up in tracking the local maximum power peak and not the global power peak.
Design/methodology/approach
The PV panels in an PV array when getting shaded even partially would result in huge power loss. The pattern of shading also plays a crucial role, as it renders a cascaded impact on the overall power output because the cells/panels are connected in series and are parallel. Therefore, during shading, intelligent schemes are needed to appropriately connect and discard the unhealthy and healthy panels in right place with right combination. This research proposes one such scheme to mitigate the shading impact.
Findings
To mitigate the shading impact and also to have a smooth power-voltage (P-V) curve, a new series inducing switching scheme is introduced. The proposed scheme not only mitigates the shading impact and enhances the output power but also smoothens the P-V curve that facilitates the MPPTs to track the P-V appropriately.
Originality/value
The research findings are inventive in nature and not copied work. The reference works and the inspirations have been duly cited and credited.
Keywords
Acknowledgements
The authors would like to acknowledge that this research work was carried out at Renewable Energy Research Lab under selective Excellence Research Initiative (SERI-2017).
Citation
Vadivel, S., C.S., B., R., S. and Kaovasia, T. (2023), "Intelligent series inducing switching scheme (ISISS) to enhance power delivery in shaded photovoltaic array", Circuit World, Vol. 49 No. 4, pp. 514-527. https://doi.org/10.1108/CW-09-2021-0248
Publisher
:Emerald Publishing Limited
Copyright © 2022, Emerald Publishing Limited