MPPT Design for PV-Powered WPT System with Irregular Pulse Density Modulation

Abstract

Electric vehicles (EVs) are well-known as environmentally friendly systems. Therefore, the demand for EVs is rapidly increasing every day, but for charging batteries of EVs eco-friendly electrical energy sources are needed. To use a clean energy source, this article proposes a wireless power transfer (WPT) system energized by photovoltaic panels. In this study, pulse density modulation technique controlled with incremental conductance algorithm is preferred in the WPT system for both transferring power from primary to secondary windings and for tracking maximum power point (MPP). The proposed system was tested with an experimental prototype and the results were presented. As a result, both 99.22% MPPT efficiency was obtained and power was transferred from primary to secondary with 90% efficiency.

Keywords:

• wireless power transfer
• pulse density modulation
• maximum power point tracking
• incremental conductance algorithm

Acknowledgment

The authors would like to thank Gazi University Academic Writing Application and Research Center for proofreading the article.

Additional information

Funding

This work has been supported by the Gazi University Scientific Research Project Coordination Unit under grant number FGA-2021-6941.

Notes on contributors

Kenan Unal

Kenan Unal received B.S. of Electrical and Electronics Engineering Department of Karabuk University (KBU), in 2016. He graduated M.Sc. in Electrical and Electronics Engineering from KBU, in 2018, Karabuk, Turkiye. He has been studying for Ph.D. education at Gazi University since 2019. He works as Lecturer at TUSAS Kazan Vocational School, Department of Motor Vehicle and Transportation Technology, Gazi University. His research fields are regarding power electronics, resonant power converters, induction heating systems, renewable energy systems and wireless power transfer systems.

Gungor Bal

Gungor Bal received the B.Sc. and M.Sc. degrees in electrical engineering from Gazi University, Ankara, Turkiye and the Ph.D. degree in electrical and electronics engineering from Strathclyde University, Glasgow, UK, in 1994. His research interests are drive and control of special electrical motors, extended Kalman filters, brushless dc motors, and vector controlled induction motors.

Selim Oncu

Selim Oncu received the B.S. degree in electrical education from Gazi University, Ankara, Turkiye, in 2001, the M.S. in electrical and electronics engineering from Pamukkale University, Denizli, Turkiye, in 2005, and the Ph.D. degree in electrical education from Gazi University, Ankara, Turkiye, in 2011. He is working with the Electrical and Electronics Engineering Department, Karabuk University, Karabuk, Turkiye, where he is currently an Associate Professor. His research interests include power electronics, resonant converters, induction heating systems, electronic ballasts, MPPT, grid-connected inverters, PV system applications, electric vehicle, and battery charger.

Nihat Ozturk

Nihat Ozturk received the bachelor’s degree from the Gazi University Ankara, Turkiye, in 1997, and the M.Sc. and Ph.D. degrees from the Gazi University in 2000 and 2006, respectively, all in electrical education. Since September 2019, he has been a Full Professor in the Department of Electrical and Electronic Engineering, Gazi University. He has authored and co-authored more than 50 academic publications in conferences and journal. His research interests include high-performance electric machines and drives, pulsed power systems, artificial intelligent and power converters.