The goal of the project was to develop a wireless power transfer wpt system and implement it in innovative flooring. This book is a collection of contemporary research and developments in the area of wireless power transfer technology. Oct 28, 2016 introduction to wireless power transfer october 28, 2016 by marie christiano wireless power transfer holds the promise of freeing us from the tyranny of power cords. We will be able to become free from lacking electric power when electric power will be supplied wirelessly. Wireless charging of electric vehicles power electronics.
Number of household points receives electricity at the same frequency using. Technology requirements for high power applications of. However, the power transfer efficiency pte of the wpt system with two txs and a single rx has been intensively studied in the past few years. Andre kurs left, john joannopoulos and aristeidis karalis.
The wpt technology options discussed, especially inductive power transfer ipt, enable rapid instation or opportunity boost dynamic recharging of electric bus batteries for range. The transfer of power from source to receiver is a technology that has existed for over a. Introduction to wireless power transfer technical articles. Comparing with the traditional method of power transfer using magnetic inductive coupling in achieving wireless and efficient nearfield power transfer, there are increasing number of researchers that focus on the magnetic resonant. Chapter 2 analysis of wireless power transfer by coupled mode theory cmt and practical considerations to increase power transfer efficiency 19 alexey bodrov and seungki sul chapter 3 magnetically coupled resonance wireless power transfer mrwpt with multiple selfresonators 51 youngjin park, jinwook kim and kwanho kim. Wireless power transfer principles and engineering explorations. Wireless power transfer over twometer distance, from the coil on the left to the coil on the right, where it powers a 60w light bulb. Wireless power transfer wpt, which transmits power by an electromagnetic field across an intervening space, provides the prospect of new opportunities for electric vehicles evs to enhance sustainable mobility. The transfer of power from source to receiver is a technology that has existed for over a century.
Proceedings of the ieee wireless power transfer conference wptc, may 15, boulder. Support j29542 bus and heavy duty wireless charging standards development taskforce with development, test data, experimental lessons learned, and design experience. Considerable progress in wireless power transfer has been made in the realm of nonradiative transfer, which employs magneticfield coupling in the near field 1,2,3,4. View wireless power transmission research papers on academia. An adaptive impedancematching network based on a novel capacitor matrix for wireless power transfer. We introduce quasistatic cavity resonance qscr, which can enable purposebuilt structures. Radiative behaviors electromagnetic wpt is the transmission of em fields dual composition of em fields a wpt system can behave differently depending on the separation between tx and rx non. Jun 15, 2017 considerable progress in wireless power transfer has been made in the realm of nonradiative transfer, which employs magneticfield coupling in the near field 1,2,3,4. Wireless technology can be used for transmission of electric power wirelessly from one end to other end. Pdf the goal of the project was to develop a wireless power transfer wpt. Comparing with the traditional method of power transfer using magnetic inductive coupling in achieving wireless and efficient nearfield power transfer, there are increasing number of researchers that focus on the magnetic resonant coupling method. A comparative study of wireless power transmission techniques a.
In section ii, we will discuss power transfer efficiency. The two primary technologies gaining traction in the marketplace are flexibly coupled, and tightly coupled, wireless power transfer. He started efforts on manuscript received february 25, 2011. Wireless power transmission or transfer wpt technology is considered as one of game changing technologies. Radiative near field region changes in currentcharge distrib. Survey of the operation and system study on wireless. The system makes use of charging infrastructure embedded under the surface of the road that transfers electric power to the vehicle while it is in transit. Wireless power transfer wpt technologies have been widely used in many areas, e. Download the seminar report for wireless electricity or witricity. Top wireless power transfer companies ventureradar. Wireless power transfer wpt has recently evolved as a very active research. Visser, indoor wireless rf energy transfer for powering wireless sensors the basis of an rf power transfer system, see fig. Automated frequency tracking system for efficient mid. Pdf wireless power transfer system architectures for portable or.
Investigation of power transfer density enhancement in large airgap capacitive wireless power transfer systems. Design and realization of a multiple access wireless power transfer system for. Wireless transmission of electrical power overview of. In last few years, our society experienced a silent, but quite dramatic, revolution in terms of the number of autonomous electronic devices e. The main objective of this project is to develop a device for wireless power transfer. Getting rid of cables for the ease of operators of medical devices. Ohira, viawheel power transfer to vehicles in motion, in 20 ieee. Members of the team that performed the experiment are obstructing the direct line of sight between the coils. Optimal design and analysis of wireless power transfer system. Resonant wireless power transfer to ground sensors from a uav. Fast and efficient wireless power transfer via transitionless. The proposed tracking system is designed to maintain a power transfer efficiency of more than 70% for any transfer. Ahmed3 1 comsats institute of information technology, islamabad, pakistan 2.
To increase the efficiency of the systems of wireless power transmission with the. Wpt has been successfully applied for charging various handheld devices, such as medical devices, electronic toothbrushes, and smartphones. Output voltage regulation is achieved through two mechanisms. Designing a qicompliant receiver coil for wireless power systems, part 1 overview the implementation of the wireless power consortiums wpcs qi standard1 brings wireless power to many different end applications. The invention of various wireless technologies are great revolution in the field of communication. Wireless power transfer fundamentals and technologies. We have successfully demonstrated significant wireless power transfer over a distance of 1 meter between two selfresonant coils fig. Wireless power transfer principles and engineering. Quasistatic cavity resonance for ubiquitous wireless power. This research includes the basic introduction to the concept of wireless power transfer from a source to a load without using conductors. Please note that the contents may change without any prior notice due to reasons such as upgrading. Wireless power transfer, inductive coupling, resonant coupling.
This rectifying antenna is commonly denoted rectenna. Nikola tesla has been the pioneer in the field of wireless. The rectenna converts the rf power incident on the antenna into usable dc power. Wireless power delivery has the potential to seamlessly power our electrical devices as easily as data is transmitted through the air. Jun 07, 2007 wireless power transfer over twometer distance, from the coil on the left to the coil on the right, where it powers a 60w light bulb. Resonant wireless power transfer to ground sensors from a uav brent grif.
Modulating wireless power signal to carry data bidirectionally. Wireless power transfer wpt has been made feasible in recent years due to advances in technology and better the mpt system works by converting power to microwaves through a microwave generator and then transmitting that power through free space where it is received and converted back to power. In view of the many advantages it offers, wireless power transfer wpt will in all. European microwave week eumw 2012, 28 oct2 nov 2012, amsterdam. Optimal design and analysis of wireless power transfer. The range of the power transmission region can be effectively enlarged by a multipletransmitter txs and singlereceiver rx magnetic wireless power transfer wpt system. Indoor wireless rf energy transfer for powering wireless. Resonant wireless power transfer to ground sensors from a. Google scholar martin kaltenbrunner, matthew s white, eric d glowacki, tsuyoshi sekitani, takao someya, niyazi serdar sariciftci, and siegfried bauer. Integrating wireless power transfer wpt systems into the infrastructure represents a major hurdle in the largescale adoption of electric vehicles evs. The proposed tracking system is designed to maintain a power transfer efficiency of.
In 2015 ieee wireless power transfer conference wptc. This technology is being incorporated into all kinds of devices and systems. The system uses a charging pad and a compatible device, which is placed on top of the pad, charging via. Wireless power transfer using resonant inductive coupling. Wireless power transfer project linkedin slideshare. A transmission pad in a wireless power system differs in size and makeup depending upon the underlying technology and overall use case. A cuttable wireless power transfer sheet proceedings of. It is proposed that inductive power transfer ipttechnology be directly embedded into a pavem. The authors are with from bharati vidyapeeth deemed university college of engineering, pune, india.
Wireless transmission of electrical power overview of recent. Wireless power transfer is a generic term for a number of different technologies for transmitting energy by means of electromagnetic fields. This book builds upon that dream and is a result of intensive research in powerline, machine to machine communications, and wireless power transfer globally. A network comprised of interconnected sensor nodes exchanging sensed data by wired or wireless communication. Receiver integration 15 of the area savings th bq5101x bq500210 communication bq51011 bq510. S college of engineering, aurangabad, maharashtra, india.
The probability density functions pdf of the noise and ms with normal. The project was done at nextfloor oy, a company based in helsinki, finland. Wireless power transfer can make a remarkable change in the field of the electrical engineering which eliminates the use conventional copper cables and current carrying wires. In a wireless power transmission system, a transmitter device, driven by electric power from a power source, generates a timevarying electromagnetic field, which transmits. Commonly referred to as dynamic wireless power transfer. Assistant professor in communications engineering, asharqiyah university. Isbn 9789533078748, pdf isbn 9789535143741, published 2012 0125. The wireless charging ev is one of emerging transportation systems in which the evs battery is charged via wireless power transfer wpt technology. However, existing solutions are limited to near contact distances and do not provide the geometric freedom to enable automatic and unaided charging. Design and build a high power wireless power transfer components meeting heavy duty vehicle expectations of overall wpt technical targets.
Wireless power transmission research papers academia. Principles and engineering explorations, encompasses theory and engineering technology, which are of interest for diverse classes of wireless power transfer. In particular, a recent experiment, conducted at mit, has demonstrated that two resonant circuits, with their magnetic fields strongly coupled in the nearfield regime, allows highly efficient power transfer over a distance of approximately one meter. An innovative idea 209 need for wireless power transmission wireless transmission is employed in cases where instantaneous or continuous energy transfer is needed, but interconnecting wires are inconvenient, hazardous, or impossible. Wireless power transfer algorithms, technologies and applications. Wireless power trasnfer fur elektrofahrzeuge bundesamt fur umwelt.
Safe, efficient, and over distance background the idea of transmitting power through the air has been around for over a century, with nikola teslas pioneering ideas and experiments perhaps being the most wellknown early attempts to do so 1. Pdf wireless power transfer inspired by the modern trends in. In recent years there has been renewed interest in wireless power transfer. Application segment overview wireless power transfer. Wireless power transfer wpt system has a great application potential, because of the development of the electronic devices. Energous corporation is the developer of wattupan awardwinning, wirefree charging technology that will transform the way consumers and industries charge and power electronic devices at home, in the office, in the car and beyond.
Survey of the operation and system study on wireless charging. Wireless power transfer massachusetts institute of. The concept of wireless power transfer was realized by nikolas tesla. Textroad publication issn 20904304 journal of basic and applied scientific research. An automated frequency tracking system is implemented for an efficient mid. A methodology for making a threecoil wireless power transfer system more energy efficient than a twocoil counterpart for extended transfer distance. We introduce quasistatic cavity resonance qscr, which can enable purposebuilt structures, such as cabinets. The transferred power is sufficient to illuminate a light bulb wirelessly. It consists of chapters that focus on interesting topics of. Furthermore, balouchi et al 2012 forecasts that the asiapacific regions.
The receiver rx coil for each application may have different geometries andor power requirements. Wireless charging ev is a type of ev in which charging is done using wireless power transfer wpt technology, which does not require any physical contact in the process of transferring electric energy. The system uses a charging pad and a compatible device, which is placed on top of the pad, charging via resonant inductive coupling. Designing a qicompliant receiver coil for wireless power. Efficiency analysis of multipletransmitter wireless power. Download the seminar report for wireless electricity or. Wireless power transfer techniques have been gaining researchers and industry attention due to the increasing number of batterypowered devices, such as mobile computers, mobile phones, smart devices, intelligent sensors, mainly as a way to replace the standard cable charging, but also for powering batteryless equipment. Wireless energy transfer or witricity wireless electricity transfers electricity instead of data. The base station was to supply wireless electrical energy to a distant receiver. The technologies, listed in the table below, differ in the distance over which they can transfer power efficiently, whether the transmitter must be aimed directed at the receiver, and in the type of electromagnetic energy they use. The optimal condition and numerical analysis on maximum power transfer efficiency will be introduced.
340 572 915 375 1546 828 992 1408 1449 248 835 1277 1251 1591 65 957 1461 202 642 199 1063 707 1494 1328 119 833 306 1229 1542 1310 282 90 947 69 1074 1451 908 1012 907 562 1390 1123