The impact of energy yield of a photovoltaic system under partial shading

J. C. Teo, Rodney H.G. Tan, V. H. Mok, Vigna K. Ramachandaramurthy, Chia Kwang Tan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Photovoltaic module is very susceptible to partial shading problem. In a photovoltaic power system, large number of photovoltaic modules are connected in series to provide required voltage and power. Due to large number of photovoltaic modules, the chances of every photovoltaic module to receive uniform solar irradiance become lower. Therefore, a photovoltaic system consists of large number of photovoltaic modules is even more susceptible to partial shading problem. This paper presents the investigation of the energy yield of a photovoltaic system under partial shading conditions. The investigation results shows that the energy yield of a photovoltaic system decreases as the shading heaviness increases. However, the effect is not constant. The effect is especially significant when the photovoltaic system is under lightly partial shaded conditions. In worst case, the energy yield of the photovoltaic system can drops up to 17.65 % as the shading heaviness increases by 20 %. Therefore, the partial shading need to be address in order to minimize the losses of the photovoltaic system under partial shading conditions.

Original languageEnglish
Title of host publicationIET Conference Publications
PublisherInstitution of Engineering and Technology
EditionCP749
ISBN (Electronic)9781785618161, 9781785618437, 9781785618468, 9781785618871, 9781785619427, 9781785619694, 9781839530036
ISBN (Print)9781785617911
Publication statusPublished - 01 Jan 2018
Event5th IET International Conference on Clean Energy and Technology, CEAT 2018 - Kuala Lumpur, Malaysia
Duration: 05 Sep 201806 Sep 2018

Publication series

NameIET Conference Publications
NumberCP749
Volume2018

Conference

Conference5th IET International Conference on Clean Energy and Technology, CEAT 2018
CountryMalaysia
CityKuala Lumpur
Period05/09/1806/09/18

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Teo, J. C., Tan, R. H. G., Mok, V. H., Ramachandaramurthy, V. K., & Tan, C. K. (2018). The impact of energy yield of a photovoltaic system under partial shading. In IET Conference Publications (CP749 ed.). (IET Conference Publications; Vol. 2018, No. CP749). Institution of Engineering and Technology.