Design and Control of an Off Board Battery Charger for Electric Vehicles

Authors

  • Uzma Dar Department of Electrical Engineering, Jamia Millia Islamia, New Delhi, India
  • Anwar Shahzad Siddiqui Department of Electrical Engineering, Jamia Millia Islamia, New Delhi, India
  • Farhad Ilahi Bakhsh Department of Electrical Engineering, National Institute of Technology Srinagar, Srinagar (J&K), India

DOI:

https://doi.org/10.13052/dgaej2156-3306.3744

Keywords:

Bidirectional charging, grid to vehicle (G2V), pulse width modulation (PWM), unity power factor, vehicle to grid (V2G).

Abstract

The rise in the penetration of electric vehicles has led to the increased interest in the charging technologies. Controlled charging and vehicle to grid power transfer is being given much importance. This paper proposes an off board charger (three phase) for charging the batteries used in electric vehicles. The proposed charger has a bidirectional power transfer capability so as to transfer power back to the utility grid. The topology proposed is simple and less costly as it has fewer elements. The charger has two converters, a three phase ac-dc converter for conversion of ac into dc and bidirectional dc-dc converter. The technique called Vector control is used to control ac-dc converter which allows controlling of active and reactive power independently. The control strategy proposed here provides a better control and leads to a better performance while maintaining unity power factor at input. The charging algorithm designed is such that it is able to maintain voltage at dc link at desired value. The charging algorithm is designed for lithium ion batteries and the combined Constant Current Constant Voltage (CC-CV) method of charging is used because it is simple and easy to implement. The proposed electric vehicle charger changes the mode of charging with change in State of Charge (SOC). The different modes are switched and the suitable reference is generated based on the different charging characteristics of a battery. The proposed charger is modeled in MATLAB-Simulink. The working operation of both forward and reverse power transfer mode has been analyzed. The proposed charger is able to maintain the unity power factor operation. The simulation results of all modes validate the design and control of the proposed charging topology.

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Author Biographies

Uzma Dar, Department of Electrical Engineering, Jamia Millia Islamia, New Delhi, India

Uzma Dar has received her B.Tech degree in Electrical Engineering from National Institute of Technology, Srinagar, India in the year 2018. And then pursued her M.Tech in Electrical Power Systems and Management from Jamia Millia Islamia, New Delhi, India and received her degree in 2021.

Anwar Shahzad Siddiqui, Department of Electrical Engineering, Jamia Millia Islamia, New Delhi, India

Anwar Shahzad Siddiqui is currently working as Professor, Electrical Engineering at Jamia Millia Islamia (Central University), New Delhi. He obtained his B.Sc Engg. (Electrical Engineering) and M.Sc Engg. (Power Systems and Electrical Drives) degrees from AMU, Aligarh both with Honors in 1992 and 1994 respectively. He has been teaching and guiding research for about twenty five years at JMI, New Delhi. Before joining Jamia, he was a faculty at Department of Electrical Engineering, AMU, Aligarh. He served at BITS, Pilani-Dubai campus from 2003–2008 as an Associate Professor of Electrical and Electronics Engineering and Registrar. His research interests include Power System control and management. He has applied many Artificial Intelligence Techniques in the field of Electrical Power System. He has more than 150 research papers published in refereed international and national journals and conferences of repute having more than 630 citations with h-index 14 and i10-index-21.

Farhad Ilahi Bakhsh, Department of Electrical Engineering, National Institute of Technology Srinagar, Srinagar (J&K), India

Farhad Ilahi Bakhsh received Diploma and B. Tech degree in Electrical Engineering from Aligarh Muslim University (AMU), Aligarh, India in 2006 and 2010, respectively. He was awarded University Medal (Gold) for standing first throughout Diploma in Electrical Engineering. He has been awarded first position in SPOTLIGHT and third position in overall solar conference during cognizance 2010 in Indian Institute of Technology, Roorkee. Then he pursued Masters in Power System and Drives from the Aligarh Muslim University. In Masters he secured first position in his branch. He joined IEEE during Masters and since then he is an IEEE member.

He also worked as head of Research & Development cell, IEEE student chapter, AMU for around two years. Under this cell, he developed five new systems i.e. A rotor power control based flexible asynchronous AC link (FASAL) system, A miss-call based switching system for multiple loads or appliances, A power controller circuit based flexible asynchronous AC link (FASAL) system for induction generator applications, A combined voltage control and rotor power control based flexible asynchronous AC link (FASAL) system and A waste fluid pressure based energy generation system. Among these five systems, four systems have been published by an official Journal of Patent Office.

Then he pursued Ph.D. from Indian Institute of Technology Roorkee, India. During his Ph.D. he developed a new method for grid integration for wind energy generation system which has been recognized worldwide. He served as Assistant Professor in Department of Electrical & Renewable Energy Engineering, School of Engineering & Technology, Baba Ghulam Shah Badshah University, Rajouri, J & K, India. He also worked as Coordinator of Massive Open Online Courses (MOOC’s) under SWAYAM platform in Baba Ghulam Shah Badshah University and Co-ordinator of NBA, School of Engineering & Technology, Baba Ghulam Shah Badshah University. He developed an automatic solar tracking system which has been appreciated by IEEE India Council, Centre for Embedded Product Design, Centre for Electronics Design and Technology, Netaji Subhas Institute of Technology in association with IEEE Delhi Section & IEEE CAS, Bangalore Chapter. Currently he is serving as Assistant Professor in Department of Electrical Engineering, National Institute of Technology Srinagar, Jammu & Kashmir, India. Here, he is having many Departmental and Institutional responsibilities. He started IEEE Student Branch in NIT Srinagar and since then he is serving as Counselor of it.

Recently, he has won “10 for 10 Typhoon HIL Award” from Switzerland, Europe. He delivered a number of Keynote talks, Invited talks and Expert Lectures at National and International level in conferences, workshops, STC, etc. He have more than 50 published papers in International reputed Journals, International reputed Conferences and National Conferences. Many times, he got best paper awards in International conferences. Moreover, he have four published patents and one granted patent in his credit. His research area of interests includes Application of Variable Frequency Transformer, Renewable Energy Systems (Solar & Wind), Drives and Alternate Energy Vehicles.

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Published

2022-04-25

How to Cite

Dar, U., Siddiqui, A. S., & Bakhsh, F. I. (2022). Design and Control of an Off Board Battery Charger for Electric Vehicles. Distributed Generation &Amp; Alternative Energy Journal, 37(4), 959–978. https://doi.org/10.13052/dgaej2156-3306.3744

Issue

2022: Vol 37 Iss 4

Section

Articles