Computational analysis of power loss reduction in BIPV systems considering partial shadow conditions

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Hosseiniirani, S. (2022). Computational analysis of power loss reduction in BIPV systems considering partial shadow conditions. Unc Charlotte Electronic Theses And Dissertations.
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Abstract

Implementing PV panels as a source of clean energy for the building sector is growing worldwide. Currently, PV materials are widely installed on building roofs; however, with more population and urban area growth, the rooftop of high-rise buildings is not sufficient to fulfill the electricity consumption needs of the entire building. Additionally, the rooftop of many buildings is further limited to installing PV panels due to the overshadowing of block structures, electrical boxes, elevator bulkheads, etc. Therefore, the façade of a building has the potential to generate a high amount of electricity. The higher the building, the more opportunities to respond to the building demand loads and reduce the building's carbon footprint. The BIPV façade systems are often subject to partial shades from panels self-shading, building itself, and surrounding objects. Therefore, traditional default circuit connections do not output maximum power for those systems. While available technologies to keep the current in the highest amount such as inverter and microinverter cannot be used for BIPV applications due to their relatively low current output compared to larger-scale PV systems such as solar farms, PV cells circuit connections have a significant impact on higher energy yields in BIPV façade systems. This study investigates the different array configurations and PV cell circuit connections to achieve higher energy yields in BIPV facade systems. According to the simulated results in this study, the series connection between PV cells within the string that receive similar solar radiation, the parallel connection between strings of PV cells within each PV panel, and the series connection between PV panels within an array increase the total power production of the BIPV façade systems. The outcomes of this study demonstrated that this circuit reconfiguration increases the energy yields by 10%.

Details
Author

Hosseiniirani, Seyedehhamideh

Title

Computational analysis of power loss reduction in BIPV systems considering partial shadow conditions

Physical Description

1 online resource (52 pages) : PDF

Date

2022

Degree Granting Institution

University of North Carolina at Charlotte

Abstract

Implementing PV panels as a source of clean energy for the building sector is growing worldwide. Currently, PV materials are widely installed on building roofs; however, with more population and urban area growth, the rooftop of high-rise buildings is not sufficient to fulfill the electricity consumption needs of the entire building. Additionally, the rooftop of many buildings is further limited to installing PV panels due to the overshadowing of block structures, electrical boxes, elevator bulkheads, etc. Therefore, the façade of a building has the potential to generate a high amount of electricity. The higher the building, the more opportunities to respond to the building demand loads and reduce the building's carbon footprint. The BIPV façade systems are often subject to partial shades from panels self-shading, building itself, and surrounding objects. Therefore, traditional default circuit connections do not output maximum power for those systems. While available technologies to keep the current in the highest amount such as inverter and microinverter cannot be used for BIPV applications due to their relatively low current output compared to larger-scale PV systems such as solar farms, PV cells circuit connections have a significant impact on higher energy yields in BIPV façade systems. This study investigates the different array configurations and PV cell circuit connections to achieve higher energy yields in BIPV facade systems. According to the simulated results in this study, the series connection between PV cells within the string that receive similar solar radiation, the parallel connection between strings of PV cells within each PV panel, and the series connection between PV panels within an array increase the total power production of the BIPV façade systems. The outcomes of this study demonstrated that this circuit reconfiguration increases the energy yields by 10%.

Genre

masters theses

Subjects--Topics

Sustainability

Degree

M.S.

Keywords

Array Reconfiguration
Bipv Facade Systems
Circuit Conection
Energy Yield
Partial Shades

Subject Area

Architecture

Advisor(s)

Kim, Kyoung-Hee

Committee Members

Ebong, Abasifreke
Futrell, Benjamin

Degree Note

Thesis (M.S.)--University of North Carolina at Charlotte, 2022.

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Rights Holder Information

Copyright is held by the author unless otherwise indicated.

Identifier

Hosseiniirani_uncc_0694N_13156

Permalink

http://hdl.handle.net/20.500.13093/etd:2916