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Impact of partial shading on the P-V characteristics and the maximum power of a photovoltaic string

Photovoltaic cells; Solar energy; Characteristic curve; Electrical power; Maximum power; Partial shading; Photovoltaic; Photovoltaic systems; Series-connected photovoltaic modules; Solar irradiances; Solar power generation

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Main Authors: Teo J.C., Tan R.H.G., Mok V.H., Ramachandaramurthy V.K., Tan C.
Other Authors: 57200258267
Format: Article
Published: MDPI AG 2023
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spelling my.uniten.dspace-241862023-05-29T14:56:35Z Impact of partial shading on the P-V characteristics and the maximum power of a photovoltaic string Teo J.C. Tan R.H.G. Mok V.H. Ramachandaramurthy V.K. Tan C. 57200258267 35325391900 6603737102 6602912020 55921560400 Photovoltaic cells; Solar energy; Characteristic curve; Electrical power; Maximum power; Partial shading; Photovoltaic; Photovoltaic systems; Series-connected photovoltaic modules; Solar irradiances; Solar power generation A photovoltaic system is highly susceptible to partial shading. Based on the functionality of a photovoltaic system that relies on solar irradiance to generate electrical power, it is tacitly assumed that the maximum power of a partially shaded photovoltaic system always decreases as the shading heaviness increases. However, the literature has reported that this might not be the case. The maximum power of a partially shaded photovoltaic system under a fixed configuration and partial shading pattern can be highly insusceptible to shading heaviness when a certain critical point is met. This paper presents an investigation of the impact of partial shading and the critical point that reduce the susceptibility of shading heaviness. Photovoltaic string formed by series-connected photovoltaic modules is used in this research. The investigation of the P-V characteristic curve under different numbers of shaded modules and shading heaviness suggests that the photovoltaic string becomes insusceptible to shading heaviness when the shaded modules irradiance reaches a certain critical point. The critical point can vary based on the number of the shaded modules. The formulated equation in this research contributes to determining the critical point for different photovoltaic string sizes and numbers of shaded modules in the photovoltaic string. � 2018 by the authors. Licensee MDPI, Basel, Switzerland. Final 2023-05-29T06:56:35Z 2023-05-29T06:56:35Z 2018 Article 10.3390/en11071860 2-s2.0-85051179770 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051179770&doi=10.3390%2fen11071860&partnerID=40&md5=ebdb36329a7397c1b13f5a368426f961 https://irepository.uniten.edu.my/handle/123456789/24186 11 7 1860 All Open Access, Gold, Green MDPI AG Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Photovoltaic cells; Solar energy; Characteristic curve; Electrical power; Maximum power; Partial shading; Photovoltaic; Photovoltaic systems; Series-connected photovoltaic modules; Solar irradiances; Solar power generation
author2 57200258267
author_facet 57200258267
Teo J.C.
Tan R.H.G.
Mok V.H.
Ramachandaramurthy V.K.
Tan C.
format Article
author Teo J.C.
Tan R.H.G.
Mok V.H.
Ramachandaramurthy V.K.
Tan C.
spellingShingle Teo J.C.
Tan R.H.G.
Mok V.H.
Ramachandaramurthy V.K.
Tan C.
Impact of partial shading on the P-V characteristics and the maximum power of a photovoltaic string
author_sort Teo J.C.
title Impact of partial shading on the P-V characteristics and the maximum power of a photovoltaic string
title_short Impact of partial shading on the P-V characteristics and the maximum power of a photovoltaic string
title_full Impact of partial shading on the P-V characteristics and the maximum power of a photovoltaic string
title_fullStr Impact of partial shading on the P-V characteristics and the maximum power of a photovoltaic string
title_full_unstemmed Impact of partial shading on the P-V characteristics and the maximum power of a photovoltaic string
title_sort impact of partial shading on the p-v characteristics and the maximum power of a photovoltaic string
publisher MDPI AG
publishDate 2023
_version_ 1806427893926985728
score 13.226694

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