Efficiency Performance Optimization of Wireless Power Transfer System with Magnetic Resonance
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- Efficiency Performance Optimization of Wireless Power Transfer System with Magnetic Resonance
- Lee, Seunggyu
- Bien, Franklin
- Issue Date
- Graduate School of UNIST
- Wireless Power Transfer (WPT) system has attracted people’s attention for a kind of power transfer mechanism. This technology provides energy to communication devices or electrical devices without the power connection. The concept of Wireless Power Transfer (WPT) can be traced back to the early 20th century when Nikola Tesla patented several techniques related to transmitting power over air. However, there was not demanded due to the lack of portable electrical devices. Recently, the usage of mobile devices such as cell phones, PDAs, laptops, tablets, and other handheld gadgets equipped with rechargeable batteries has been widely spreading. That’s why this technology has been attracting a lot of attention of scientists and R&D firms around the world to remove recharge cables. Wireless Power Transfer (WPT) system supports the usability to supply power for electrical devices without any connecting to power source directly.
The point of requirement of the applications using Wireless Power Transfer (WPT) system is transfer efficiency for reducing energy loss. Also, resonator size is important factor to apply real applications. In this thesis, technology to improve the system performance of Wireless Power Transfer (WPT) in magnetic resonance based scheme is described. Also, optimal efficiency conditions are derived and used to design optimal adaptive matching technique.
- Electrical Engineering
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