![Sample our Economics, Finance,Business & Industry journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5931/TOC-Subject-Sample-2021-Economics-Finance-Business-Industry.jpg"})
Abstract
The primary objective of Maximum Power Point Tracking (MPPT) for PV systems connected to a low-voltage DC grid is to extract the maximum possible power output from the PV array. Normally high-frequency switched mode power converters are employed to track the maximum power. These converters, however, impose switching frequency voltage ripple on the PV output. This causes fluctuation around the Maximum Power Point (MPP) and results in power loss. These losses can be reduced using electrolytic capacitors, however, the electrolytic capacitors’ lifespan is relatively shorter than that of a PV panel. In this paper, an interleaved boost converter is used to reduce high-frequency voltage ripple introduced on panel. Hence, smaller values of longer lifespan capacitors such as film capacitors will be sufficient to curtail the smaller ripple. Moreover, film capacitors are selected based on voltage ripple. Analysis was carried out for calculating voltage ripple imposed on PV module to select input filter more precisely. In addition, reduction in the voltage ripple is calculated quantitatively and is compared with that of a conventional boost converter. Enhanced power output from the PV panel is mathematically proven and experimentally demonstrated.
Acknowledgments
The authors would like to thank the National Mission on Power Electronics Technology (NaMPET)-Phase II, an initiative of Department of Information Technology, Government of India for their financial support towards this work.
Additional information
Notes on contributors
Chandrasekar Venkatesan
Chandrasekar Venkatesan received the B.E (EEE) degree from Coimbatore Institute of Technology, Coimbatore, India, in 1995 and the M.E in power electronics and drives from College of Engineering, Anna University, Chennai, India, in 1997. Subsequently, he joined CDAC (T) in Power electronics group, where he is currently a Scientist ‘F’/ Associate Director. He is currently pursuing his Ph.D. degree at NIT Tiruchirappalli. His areas of interest include switch-mode power converters for automotive and industrial applications, soft switching converters and power factor correctors, digital controller for AC drives, power conditioners for fuel cell power plants, converters for renewable energy sources and its grid connections, and system design using wide band gap devices (SiC & GaN).
Chakkarapani Manickam
Chakkarapani Manickam received his B. Tech. degree, M. Tech. degree, and Ph.D. degree from the National Institute of Technology, Tiruchirappalli, India in 2008, 2010, and 2017, respectively. He is currently a Senior Assistant Professor with the Department of Electrical and Electronics Engineering, Madanapalle Institute of Technology & Science, Andhra Pradesh, India. His areas of interest include digital control systems and applications of power electronics in renewable energy systems.
Maddikara Jaya Bharata Reddy
Maddikara Jaya Bharata Reddy received the B.E. degree in electrical and electronics engineering from Acharya Nagarjuna University, Guntur, India, in 2002, and the M.E. degree in electrical engineering and Ph.D. degree in power system from Birla Institute of Technology, Ranchi, India, in 2004 and 2008, respectively. He is currently an Associate Professor with the Department of Electrical and Electronics Engineering, National Institute of Technology, Tiruchirappalli, India. He is also an Editorial Board Member of Electrical Power Components and Systems. His current research interests include smart grids, substation automation, wide-area protection, digital relaying, and power system protection.
Saravana Ilango Ganesan
Saravana Ilango Ganesan received the B.E. degree from the University of Madras, Chennai, India, in 2000, the M.E. degree from Bharathidasan University, Tiruchirappalli, India, in 2001, and the Ph.D. degree from the National Institute of Technology, Tiruchirappalli. From 2001 to 2004, he was a Lecturer with Noorul Islam College of Engineering, Kumaracoil, India. He is currently an Associate Professor with the Department of Electrical and Electronics Engineering, National Institute of Technology, Tiruchirappalli, India. His areas of interest include FACTS controllers, digital controllers, and renewable energy systems.
Nagamani Chilakapati
Nagamani Chilakapati received the B.Tech. degree from the Sri Venkateswara University College of Engineering, Tiruapati, India, the M.Tech. degree from the Indian Institute of Technology, Kanpur, India, and the Ph.D. degree from the University of Technology, Sydney, Australia. From 1985 to 1991, she was with the Central Power Research Institute, Bangalore, India. Subsequently, she joined the Department of Electrical and Electronics Engineering, National Institute of Technology (then known as Regional Engineering College), Tiruchirappalli, India, as a Lecturer, where she is currently a Professor. Her areas of interest include power electronics and drives, renewable energy systems, and FACTS controllers.