This document summarizes a student project to design and implement a wireless electric vehicle charging system. The system uses inductive charging to transfer power from a transmitting pad to a receiving pad located on an electric vehicle, allowing the vehicle to charge without a physical connection. The objectives are to make charging more efficient and convenient. The system components include a power supply, transmitting pad, wireless data transfer, receiving pad, controller, and battery. Testing showed the system could transfer about 12V of power over a maximum ground clearance of 20cm, with an efficiency of 20.4%. Further research may improve efficiency and allow charging over larger distances.

1. Design & Implementation of Wireless Electric Vehicle Charging System
Submitted By
Supervised By
Nur Muhammad Babu ID : 2019310021
Md. Neamul Haque ID : 2019310022
Md. Sabbir Hossain Shikder ID : 2019310044
Khairul Islam ID : 2019310035
Md. Firoz Ali ID : 2019310028
Md. Firoz Ali ID : 2019310028
Taslim Ahmed
Assistant Professsor & Head
Department of Electrical and Electronic Engineering
Rajshahi Science & Technology University (RSTU), Natore

2. Abstract
Wireless Power Transfer (WPT) system ought to be depicted with respective
ground clearance of electric vehicle. It is an innovation technology which can
be applied for all Electric Vehicles (EV) as it helps to get rid of user
involvement. The crucial impediment for acquiring wireless charging is ground
clearance which downgrades the power transfer efficiency. The theory of WPT
for different ground clearance is elucidated and the corresponding cordless
charger device is analyzed. The portrayed cordless charger device as capacity
to distribute the power of about 12v utmost ground clearance of 20cm.

3. Single Axis Trackers:
Objectives
 Energy efficient.
 Reduced energy dependence
 Easy to make Autonomous Vehicle
 Easy Driving
 Pollution Free

4. Electric Vehicle (EV)
Electric vehicles (EVs) run on electricity only. They are propelled by one or more electric motors
powered by rechargeable battery packs.
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5. Wireless charging is a method of charging batteries without the use of cable or Physical
connection with the device specific AC adaptors. Essentially wireless charging (wireless
power transfer or Inductive Charging or Cord-less Charging) uses electromagnetic fields to
safely transfer power from a transmitting source to a receiving device for the purposes of
wirelessly charging (or recharging) a battery. As the name suggests, it does so without the use
of a physical connection.
Wireless Charging
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6. Wireless EV Charging
System
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7.  Inductive charging is based on the possibility of transferring
power through the space between two objects, a
transmitting source and a receiving device in order to charge
or recharge a battery without any physical connection.
Contd…
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8. 1. Power Supply
2. Transmitting Pad
3. Wireless Electricity and Data
Transfer
4. Receiver Pad
5. System Controller
6. Battery
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Wireless Charging
System

9. RESONANCE CHARGING.
 In resonance charging, two copper
coils are used. One
power
coil, attached to a source,
is thesending unit.
The other coil, attached to the device to
be charged, is the receiver. Both coils
are tuned to the same electromagnetic
frequency.

10. Arduino Nano
The Arduino Nano is an open-source microcontroller board based on the Microchip
ATmega328P microcontroller and developed by Arduino.cc. The board is equipped with
sets of digital and analog input/output (I/O) pins that may be interfaced to various
expansion boards (shields) and other circuits. The board has 14 digital I/O pins (six capable
of PWM output), 6 analog I/O pins, and is programmable with the Arduino IDE (Integrated
Development Environment), via a type B USB cable.
Fig -1 : Arduino Nano

11. System Physical Appearance

12. Benefits of wireless EV charging:
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 Eliminates the need for a charging cable which is prone to
damage, vandalism and potential safety concerns
 Improves user comfort and convenience as there is no need to
manually
plug in a cable – just park the vehicle over the charging pad and
charging begins
 It will Really make a Make Vehicle Autonomous.
 Protected connections
 Durability
 Inductive charging systems can be operated automatically without
dependence on people to plug and unplug. This results in higher
reliability.

13. Future Development:
1. Multiple Charging Pads
2. Larger Distance Coverage
3. Web application for real time monitoring

14. Conclusion
The proposed thesis based project was to deliver power
wirelessly. Our research and practical implementation showed
positive results. We were able to transfer power wirelessly and
the efficiency was 20.4% which is very low. But, from the
research, we found that, the efficiency can be increased. As the
output power is inversely proportional with the distance, it is
very much challenging to improve the efficiency. Many research
is going on to improve the efficiency.

15. Thank You!