Wireless Power Transfer: Survey and Roadmap

Mou, Xiaolin; Sun, Hongjian

doi:10.1109/vtcspring.2015.7146165

Cited by 103 publications

(61 citation statements)

References 29 publications

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“…According to Eqs. (5) and (6) and assuming an equal volume around each coil, the one with higher magnetic and electric fields has larger magnetic and electric energies [17]. According to the values presented in Table 3, the stored electric energy is negligible compared to the stored magnetic energy.…”

Section: Verification Of Simulation Resultsmentioning

confidence: 96%

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Electromagnetic Analysis of Different Geometry of Transmitting Coils for Wireless Power Transmission Applications

Haerinia¹,

Mosallanejad²,

Afjei³

2016

PIER M

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Abstract-Inductive power transfer is recently a common method for transferring power. This technology is developing as the modern technologies need to get more efficient and updated. The power transfer efficiency has potential to get better. There are different ways to achieve a desirable efficiency. In this paper, a suitable geometry of a coil for transferring power as a transmitting coil is examined. In this work, three types of geometries are designed. Frequency analysis at frequency range (10 kHz-50 kHz) is done to investigate behaviour of various geometries. Magnetic field, electric field, magnetic flux density, and current density for various geometries are presented and compared. Magnetic flux density is measured via an experimental setup and is compared to simulated one to verify the validity of simulation results.

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Section: Verification Of Simulation Resultsmentioning

confidence: 96%

“…The advantages of inductive-based wireless power transfer are its safety and high efficiency at short distances. One disadvantage of this technology is that the transmitter and receiver need to be aligned [6]. An inductive system can include parts as coil, core, and coupling capacitances [7].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Analysis of Different Geometry of Transmitting Coils for Wireless Power Transmission Applications

Haerinia¹,

Mosallanejad²,

Afjei³

2016

PIER M

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“…The pros and cons of each WPT technologies, the research objectives of WPT such as improving the transmission efficiency and the distance, current state-of-art technologies of WPT, thee open research challenges of WPT are discusses by Mou in his work. Even the possibility of charging multiple devices using WPT in the near future is also presented in [14].…”

Section: Related Workmentioning

confidence: 99%

A Working Model for Mobile Charging using Wireless Power Transmission

Paul¹,

Sasirekha²,

D³

et al. 2018

IJET

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Portable electronic devices are very popular nowadays. Almost all portable devices are battery powered, meaning that eventually, they all must be recharged-using the wired chargers currently being used. As the usage of these portable electronic devices is increasing, the demands for longer battery life are also increasing. These batteries need to be recharged or replaced periodically. It is a hassle to charge or change the battery after a while, especially when there is no power outlet around. Now instead of plugging in a cell phone, Personal Digital Assistant (PDA), digital camera, voice recorder, mp3 player or laptop to recharge it, it could receive its power wirelessly. The technology for Wireless Power Transmission or Wireless Power Transfer or Transmission (WPT) is in the forefront of electronic development. WPT systems are designed to transmit power without using wires more efficient than transmitting it while using wires. There could be large number of applications for wireless power systems. Hence, in this work, a wireless battery charger has been proposed for mobile phone charging which is expected to eliminate all the hassles with today's battery technology. The advantage of this device is that it can wirelessly charge up the batteries which can save time and money in a long run for the general public.

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“…In general, resonators of high Q-factors are required for an efficient power transfer at small coupling levels and longer distance between the transmitter and receiver [10]. The main shortcoming of this technique is the difficulty to adjust the resonant frequency when charging multiple devices [11]. Also, at close ranges when the two resonant circuits are tightly coupled, the resonant frequency of the system is no longer constant, but "splits" into two resonant peaks, so the maximum power transfer no longer occurs at the original resonant frequency and the oscillator frequency must be tuned to the new resonance peak [12].…”

Section: Magnetic Resonant Coupling (Electrodynamic Induction)mentioning

confidence: 99%