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Energy encryption for medium field of wireless power transfer system

Master of Science in Electrical System Engineering

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Bibliographic Details
Main Author: Nur Hazwani, Hussin
Other Authors: Muhammad Mokhzaini, Azizan, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2017
Subjects:
Wireless power transmission
Power transfer
Power transfer efficiency (PTE)
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78001
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spelling my.unimap-780012023-03-06T04:45:00Z Energy encryption for medium field of wireless power transfer system Nur Hazwani, Hussin Muhammad Mokhzaini, Azizan, Dr. Wireless power transmission Power transfer Power transfer efficiency (PTE) Master of Science in Electrical System Engineering Nowadays, the wireless power transfer (WPT) on mobile charging application of power transfer is the process of transferring power using WPT technology are progressing rapidly. The launching of more mobile embedded with WPT system make it as currently most demanding technology. In WPT, the main issue that being investigated are focused on power transfer efficiency (PTE), effective distance and the size of transmitter and receiver itself. Apart from that, the security of the power transfer is very important from transmitter to selected receiver must be completely secure. The failure to secure WPT system has affected the process to transfer power from transmitter to correct receiver. This thesis presents method which manipulates chaos theory to ensure the security of energy is encrypted to transfer and recovered as security at the correct receiver efficiently with higher security. In chaos theory technique, there are chaotic behaviour element which being embedded using the logistic map and Lyapunov exponent for additional security with matching the switching frequency of the transmitter and receiver. Chaotic behaviour is triggered on each characteristic which are Lyapunov exponent, logistic map and switching frequency. For this research, the application of WPT is focused on mobile charging application and its security efficiency is tested through chaos theory. Thus, detailed study is carried out by varying the power operation, distance of effective PTE and the capacitor combination. The system is simulated using MATLAB programming by creating and simulating WPT environment. The simulation took all the characteristic and specification of mobile charging application which is resides within medium field range. The operating frequency is around 100 kHz, operating power of 10 W and distance are adjusted from 3 cm to 5 cm. The simulation is done by sample taking into account that characteristic of chaos theory which are logistic map, Lyapunov exponent, matching switching frequency and matching security key. Lyapunov exponent which triggered the matching frequency process must be greater than 3.50. As for this research, the Lyapunov exponent value is chosen by random and it is greater than 3.50. The sampling result shows that, the power is securely transferred by the following data: delivered power of 10 W, matching frequency of 102 kHz (±2% at 100 kHz) and matching security key for transmitter and receiver of 1.02 and 0.86 respectively. As the conclusion, results show that chaos theory technique is effectively employed for security of energy encryption process. It also managed to transfer energy from a transmitter to the intended receiver. This is proven by the utilization of chaos theory technique of transmitter encrypted power at distance of 4 cm between the transmitter and receiver. 2017 2023-03-06T04:42:24Z 2023-03-06T04:42:24Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78001 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Electrical Systems Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Wireless power transmission
Power transfer
Power transfer efficiency (PTE)
spellingShingle Wireless power transmission
Power transfer
Power transfer efficiency (PTE)
Nur Hazwani, Hussin
Energy encryption for medium field of wireless power transfer system
description Master of Science in Electrical System Engineering
author2 Muhammad Mokhzaini, Azizan, Dr.
author_facet Muhammad Mokhzaini, Azizan, Dr.
Nur Hazwani, Hussin
format Thesis
author Nur Hazwani, Hussin
author_sort Nur Hazwani, Hussin
title Energy encryption for medium field of wireless power transfer system
title_short Energy encryption for medium field of wireless power transfer system
title_full Energy encryption for medium field of wireless power transfer system
title_fullStr Energy encryption for medium field of wireless power transfer system
title_full_unstemmed Energy encryption for medium field of wireless power transfer system
title_sort energy encryption for medium field of wireless power transfer system
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2017
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78001
_version_ 1772813088101236736
score 13.214268

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