Repositioning of Series-Parallel, Total-Cross-Tide, Bridge-Link, and Honey-Comb PV Array Configurations for Maximum Power Extraction

Abstract

Partial shading conditions considerably reduces the power generation for conventional PV array connection. This problem can be diminished effectively by repositioning the PV panels. In this paper, physical repositioning has been applied to series-parallel (SP), total-cross-tide (TCT), bridge link (BL), and honey-comb (HC) configurations without changing electrical connections. To relocate the panel we have adopted two repositioning strategies which are reconfiguration within an array (RWA) and reconfiguration within a column (RWC). This paper investigates the effect of repositioning of a panel on power extraction, efficiency, fill factor (FF), per cent mismatch losses (%ML), shading power losses (PL), and shade dispersion. This paper also provides information about, which conventional configuration gives maximum power extraction; either without reconfiguration or with reconfiguration. Also, the comparison in two base repositioning approaches shows the path for the next advancements in reconfiguration techniques. The performance analysis has done in MATLAB Simulink on a 4×4 PV array under horizontal, vertical, diagonal, L-shape, Left Top Corner (LTC), Right Top Corner (RTC), Right Bottom Corner (RBC), Left Bottom Corner (LBC), and Center shading patterns.

KEYWORDS:

• Maximum power extraction
• Partial shading conditions
• Reconfiguration within array
• Reconfiguration within column

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by Science and Engineering Research Board [grant number MTR/2021/000147].

Notes on contributors

Vinaya Chandrakant Chavan

Vinaya ChandrakantChavan 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 (EE) from Rajarambapu Institute of Technology, Sakharale, Maharashtra, India, in 2012. She received the ME degree in electrical power system engineering (EPS) 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) Vathar Tarf 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 associate 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 (90+ articles) in reputed international journals (SCI/SCI-E) and international conferences.