Partial Shading in Building Integrated PV System: Causes, Effects and Mitigating Techniques

Zainal Salam (Centre of Electrical Energy Systems Universiti Teknologi Malaysia)
Zulkifli Ramli (Universiti Teknologi Malaysia)
Jubaer Ahmed (Centre of Electrical Energy Systems Universiti Teknologi Malaysia)
Muhammad Amjad (University College of Engineering and Technology, The Islamia University of Bahawalpur, Bahawalpur, Pakistan)

International Journal of Power Electronics and Drive Systems (IJPEDS)
Vol 6, No 4: December 2015

This paper is aimed to provide a holistic understanding on the issues related to partial shading: its causes, the theoretical and physical reasons behind it, its implications on the BIPV system. Furthermore  the possible mitigation techniques using the software (MPPT) and hardware solutions are discussed. Finally an example is given to illustrate the impact of partial shading and the economic benefits of employing various partial shading mitigation techniques into the BIPV system To aid the unfamiliar readers in this subject, a brief but comprehensive overview of important PV concepts are also given.