WiTricity:Wireless Power Transfer By Non-radiative Method

R, Ajey Kumar; R, Gayathri H.; R, Bette Gowda; Yashwanth, B.L.

doi:10.14445/22315381/ijett-v11p255

Cited by 7 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In recent years, rapid growth in wireless applications due to the rise demand of compact electronics devices and the faults on electrical circuit which using electrical wires or cables for long distances. In 1980, Tesla is introduced the wireless energy transfer or WiTricity system using resonance coils (tesla coils) 1,2 . The work in Huh et al 3 introduced a new way to recharge the electrical vehicle by inductive method.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel compact coupled resonator wireless power transfer system at 1 GHz using nested open loop ring resonators

Atallah

Hussein

Abdel‐Rahman

2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

In this work, the wireless power transfer system employing nested open loop ring resonators at the ground plane is proposed. In the suggested design both the transmitter and the receiver are symmetric. The forward‐facing view contains the transmission line. The ground plane contains number of 33 open loop ring resonators which are nested together. The system has a size of 40 × 40 mm2 with a transmission distance of 15 mm. The proposed design is investigated in two cases with and without the loading capacitor. Comparisons between the resonance frequency and the power transfer efficiency of the proposed design with and without the loading capacitor are presented. The coupled resonator system achieved an efficiency of 97% at 1.35 GHz while the system with the loading capacitor achieved an efficiency of 98.8% at 1 GHz. The proposed system is designed, simulated, and measured.

show abstract

Section: Introductionmentioning

confidence: 99%

“…In 1980, Tesla is introduced the wireless energy transfer or WiTricity system using resonance coils (tesla coils). 1,2 The work in Huh et al 3 introduced a new way to recharge the electrical vehicle by inductive method. The wireless power transfer (WPT) system can be used in civil engineering applications such as buried sensor in concrete.…”

Section: Introductionmentioning

confidence: 99%

Novel compact coupled resonator wireless power transfer system at 1 GHz using nested open loop ring resonators

Atallah

Hussein

Abdel‐Rahman

2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

show abstract

“…According to a recent report, there are currently more than 228 products that offer wireless charging [22]. There are standards for wireless charging that are constructed Wireless Power Consortium (WPC), Power Matters Alliance (PMA) and Alliance for Wireless Power (A4WP) [22][23][24][25][26][27][28]. In this paper, the non-radiative WPT system with a focus on consumer electronics was designed and improved.…”

Section: Introductionmentioning

confidence: 99%

A Critical Analysis of a Wireless Power Transmission (WPT) with an Improvement Method for a Non-Radiative WPT

Ali

Ramli

Nugroho

2020

IJEEI

View full text Add to dashboard Cite

This paper describes the analysis of the wireless power transmission including recent progress in non-radiative wireless power transmission (WPT) and the improvement methods. Generally, the WPT transmitter side consists of a DC supply voltage source, inverter/power amplifier, transmitter impedance matching device (IMD), source resonator and primary coil. The WPT receiver meanwhile consists of the secondary coil, device resonator, receiver IMD, rectifier and load. In order to achieve an efficient WPT, the WPT transmitter must transmit energy with minimum loss at the receiver side. This setup can be achieved by employing the power amplifier (PA). In this paper, the power amplifier in wireless power transmission for portable devices was designed. A Class E power amplifier was proposed and designed to improve the WPT transmitter side. The effects of zero voltage and zero derivative voltage switching on PA with optimization method was also discussed.

show abstract

“…Fortunately, as a result of advances in wireless charging technology [1], it is now possible to recharge the sensors through a vehicle equipped with a charger (will be referred to as mobile charger hereafter) [2][3][4]. WSNs that possess such a recharging capability, which are called wireless rechargeable sensor networks (WRSNs), may potentially extend their network life time.…”

Section: Introductionmentioning

confidence: 99%

A Genetic Approach to Solve the Emergent Charging Scheduling Problem Using Multiple Charging Vehicles for Wireless Rechargeable Sensor Networks

Cheng

2019

Energies

View full text Add to dashboard Cite

Wireless rechargeable sensor networks (WRSNs) have gained much attention in recent years due to the rapid progress that has occurred in wireless charging technology. The charging is usually done by one or multiple mobile vehicle(s) equipped with wireless chargers moving toward sensors demanding energy replenishing. Since the loading of each sensor in a WRSN can be different, their time to energy exhaustion may also be varied. Under some circumstances, sensors may deplete their energy quickly and need to be charged urgently. Appropriate scheduling of available mobile charger(s) so that all sensors in need of recharge can be served in time is thus essential to ensure sustainable operation of the entire network, which unfortunately has been proven to be an NP-hard problem (Non-deterministic Polynomial-time hard). Two essential criteria that need to be considered concurrently in such a problem are time (the sensor’s deadline for recharge) and distance (from charger to the sensor demands recharge). Previous works use a static combination of these two parameters in determining charging order, which may fail to meet all the sensors’ charging requirements in a dynamically changing network. Genetic algorithms, which have long been considered a powerful tool for solving the scheduling problems, have also been proposed to address the charging route scheduling issue. However, previous genetic-based approaches considered only one charging vehicle scenario that may be more suitable for a smaller WRSN. With the availability of multiple mobile chargers, not only may more areas be covered, but also the network lifetime can be sustained for longer. However, efficiently allocating charging tasks to multiple charging vehicles would be an even more complex problem. In this work, a genetic approach, which includes novel designs in chromosome structure, selection, cross-over and mutation operations, supporting multiple charging vehicles is proposed. Two unique features are incorporated into the proposed algorithm to improve its scheduling effectiveness and performance, which include (1) inclusion of EDF (Earliest Deadline First) and NJF (Nearest Job First) scheduling outcomes into the initial chromosomes, and (2) clustering neighboring sensors demand recharge and then assigning sensors in a group to the same mobile charger. By including EDF and NJF scheduling outcomes into the first genetic population, we guarantee both time and distance factors are taken into account, and the weightings of the two would be decided dynamically through the genetic process to reflect various network traffic conditions. In addition, with the extra clustering step, the movement of each charger may be confined to a more local area, which effectively reduces the travelling distance, and thus the energy consumption, of the chargers in a multiple-charger environment. Extensive simulations and results show that the proposed algorithm indeed derives feasible charge scheduling for multiple chargers to keep the sensors/network in operation, and at the same time minimize the overall moving distance of the mobile chargers.

show abstract

WiTricity:Wireless Power Transfer By Non-radiative Method

Cited by 7 publications

References 7 publications

Novel compact coupled resonator wireless power transfer system at 1 GHz using nested open loop ring resonators

Novel compact coupled resonator wireless power transfer system at 1 GHz using nested open loop ring resonators

A Critical Analysis of a Wireless Power Transmission (WPT) with an Improvement Method for a Non-Radiative WPT

A Genetic Approach to Solve the Emergent Charging Scheduling Problem Using Multiple Charging Vehicles for Wireless Rechargeable Sensor Networks

Contact Info

Product

Resources

About