Study the Impact of Shading on Series-Connected PV Modules

• Main Authors: Joseph, E., Singh, B.S.M.
• Format: Conference or Workshop Item
• Published: Springer Science and Business Media B.V. 2021
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123287686&doi=10.1007%2f978-981-16-4513-6_41&partnerID=40&md5=577f071119b26a7598290e5c9302ee29; http://eprints.utp.edu.my/29285/
• Institution: Universiti Teknologi Petronas

This research paper investigates the consequences of shading by varying the solar irradiances falling on PV modules using MATLAB/ Simulink software. Besides, the effect of different solar irradiances and temperature on PV arrays were also evaluated. Partial shading and full shading are inevitable in a PV system and have a severe impact on the power generation. The shading of the PV modules represents a critical variable in the optimization of solar power generation and energy prediction. Shading has a paramount influence on the current and voltage and could even destroy some or all the cells in the PV module in the event of a hot spot. In this paper, a bypass diode is applied in PV modules to mitigate shading issues. Output power is retained at a higher level when PV modules are connected with bypass diodes. Conversely, environmental conditions such as solar irradiance appear to have a greater impact on short circuit current meanwhile temperature has a prominent effect on voltage open circuit. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.