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WIRELESS POWER TRANSFER
April 26, 2018
Overview
• Introduction
• Background
• Approach to Solution
• System Design
• Test and Evolution
• Advantages and Disadvantages
• Budget and Cost
• Conclusion
• References
Introduction
• What is Wireless Power Transfer?
• Wireless Power Transfer is the new hope for the
sustainable energy production.
• Wireless power transfer can be in many different forms
• The project idea
• The wireless power energy production is created by the
two magnetic coils.
Background
• History:
Heinrich Hertz proved the idea of inductive power
2. Wireless Power Transfer (WPT) was first realized in the 19th century
3. WPT was first demonstrated by Nicola Tesla in the 1890s
1.
•
1.
General Information:
According to Oak Ridge National Laboratory, power can be transferred using solar
plates.
Example of (WPT) Applications
Approach to Solution
o The basic purpose of this project is to transfer an electric energy
from one coil to another using magnetic coli.
o The wireless power transfer device is generated with high
frequency using magnetic coils
o The high-frequency waves are generated for the effective
transmission over the distance of 3 cm
System Design
o The three main parts of the project
o Step down transformer
o Primary circuit (Transmitter circuit)
1. Car made by wood
2.
3.
4.
Circuit components
Convert power from AC to DC
Deliver Power to primary coil
o Secondary circuit( Receiver circuit)
1. Receives power and convert it from AC to DC
2. Two output voltages
3. Additional iPhone
The Transformer
• Step down Transformer
1. Steps down voltage
2.
From 120 V to 12 V
Transmitter Circuit
• Bridge rectifier
• Four Diodes
• Capacitor
• Resistor
• Regulator
• Transistor
• Timer 555
• Coil ( Magnetic wires)
Receiver Circuit
• Coil
• HF rectification and filter
• DC Regulation
• Voltage and Current dual Display
• Samsung Phone
• Additional iPhone to charge with cable to
Show the current flowing.
The Design
Parts that will be affected from the power transferred
• Voltage and Current LED Display:
1.
This part will show the amount of voltage transferred
2.
It can also show the current flowing through the Phone to charge it.
3.
There are two phones that will be charged form the power transferred in
two different ways:
• Phone :
1. Phone number 1 will be charged by cable which hooked in the circuit.
2. Phone number 2 will charge using the dual display.
Project Demo
Test and Evaluation
• Issue absorbed
o losses is high because of the magnetic coils
• Measurements
o Voltages
o Current
• Distances
o At what distance can power be transferred ?
o What is the maximum power transferred ?
Circuit Diagram
Advantages and Disadvantages
• Advantages
o Simple design
o Low maintenance
o Practical for short distance
o No need for wires
• Disadvantages
o Losing high power
o Non-directionality
o Inefficient for longer distance
Budget and Cost
Chips
Price
Transformer
12.99$
Circuit Components
39.70$
(Transmitter & Receiver)
Magnetic Wires
6.45$
Voltage & Current Display
10.22$
Phone & Charger
0$
Total: 69.36$
Conclusion
o Our project consists of three main parts.
1.
2.
3.
Step down Transformer.
Transmitter Circuit.
Receiver Circuit.
o The Loads:
1.
2.
3.
Voltage & current display.
Samsung phone.
Additional iPhone.
o Future Goal.
1.
Longer distance
Acknowledgment
• Almighty God
• Family
• Friends
• Department of Electrical and Computer Engineering
Reference:
1.
Oak Ridge National Laboratory. (2013, July 22). Wireless Power Transfer.
[Online].
Available:https://www.youtube.com/watch?v=Gw6XtzEOlyI&feature=youtu.be
2.
Nevon Project. (2015, March 24). Advance Wireless Power Transfer System.
[Online]. Available: https://www.youtube.com/watch?v=mokIr2dEf_k
3.
L. Yongxiang, Y. Zhou, H. Xingzhe, R. Yi, and W. Yi, “Full-wave analysis of nonradiative wireless power transmission system in half space,” in Global High
Tech Congress on Electronics (GHTCE), 2012 IEEE, 2012, pp. 155-158.
4.
H. Li, J. Li, K. Wang, W. Chen, and X. Yang, “A maximum efficiency point
tracking control scheme for wireless power transfer systems using magnetic
resonant coupling,” IEEE Transactions on Power Electronics, vol. 30, pp. 39984008, 2015.
B. Jacob, (2015). “Top 5 benefits of Wireless power,” Betanews. [Online].
Available:
https://betanews.com/2015/07/30/top-5-benefits-of-wirelesspower/#comments
5.
Thank you
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