Effect of PV Array Positioning on Mismatch and Wiring Losses in Static Array Reconfiguration

Abstract

The PV module configurations are vulnerable to shading effects and cause mismatching power losses. To reduce the detrimental impact of shading and mismatching on energy production, the PV array positioning/reconfiguration is an effective measure. In this research paper sixteen 213 W, 4×4 TCT connected PV array structure has used to analyse the static reconfiguration. This paper emphasises the investigation of the best suitable panel repositioning methodology either within the column (Reconfiguration method 1) or in overall array (Reconfiguration method 2) for static reconfiguration. The MATLAB/ Simulink results have obtained based on P-V characteristics, number of peaks, global maximum power point (GMPP), local maximum power points (LMPP), mismatch losses (ML) and wiring losses (WL). The performance of reconfiguration techniques has analysed under short narrow, long narrow, short wide, long wide, horizontal vertical, diagonal, L-shape, left top corner (LTC), right top corner (RTC), right bottom corner (RBC), left bottom corner (LBC), centre and random shading patterns.

KEYWORDS:

• TCT configuration
• Reconfiguration techniques
• Partial shading conditions
• Global maximum power point
• Local maximum power point
• Mismatching loss
• Wiring loss

Additional information

Notes on contributors

Vinaya Chandrakant Chavan

Vinaya Chavan is a PhD scholar in electrical and electronics engineering at the National Institute of Technology Goa, India. She received the BTech degree in electrical engineering from Rajarambapu Institute of Technology, Sakharale, Maharashtra, India, in 2012. She received the ME degree in electrical power system engineering from the Government College of Engineering Karad, Maharashtra, India, in 2015. She is currently working as an assistant professor in the Department of Electrical Engineering at Ashokrao Mane Group of Institutions (AMGOI) Vathartarf Vadgaon, Maharashtra, India. Her research interests include applications of renewable energy sources, smart electric grid, power electronics applications to power system. Email: [email protected]

Suresh Mikkili

Suresh Mikkili (M'16, SM'19) received the BTech degree in electrical and electronics engineering (EEE) from Sasi Institute of Technology and Engineering, Tagedepalliudem, Andhra Pradesh, India, in 2006. He received the MTech and PhD degrees in electrical engineering from the National Institute of Technology, Rourkela, India, in 2008 and 2013, respectively. He is currently working as an assistant professor in the Department of EEE at the National Institute of Technology Goa (NIT Goa), India. He has been head of the EEE Department at NIT Goa from June 2014 to November 2015, UG Admissions In-Charge, and Dean, Student Welfare of NIT Goa from September 2015 to July 2019. His research interests include grid integrated renewable energy systems, power quality issues, smart electric grid, power electronics applications to power systems, and applications of soft computing techniques. He has authored a book entitled “Power Quality Issues: Current Harmonics”, published in CRC Press, Taylor & Francis Group, August 2015, ISBN 9781498729628. He has reported the results of his research (80+ articles) in reputed international journals (SCI/SCI-E) and international conferences (Annual/Bi-Annual).