Jun 02, 2017 a technical asset for engineers in the power electronics, internet of things and automotive sectors, wireless power transfer for electric vehicles and mobile devices is an essential design and analysis guide and an important reference for graduate and higher undergraduate students preparing for careers in these industries. Wireless power transfer holds the promise of freeing us from the tyranny of power cords. Mar 22, 2018 the focus of this article has been an overview of the wireless power transfer mechanism, and its aim has been to highlight the many benefits and applications of wpt. Principles and engineering explorations, encompasses theory and engineering technology, which are of interest for diverse classes of wireless power transfer. A developers guide apec2017 industry session 2630 march 2017 tampa, fl dr. Wireless power transmission using magnetic resonance.
Introduction wireless charging 1, 2, also known as wireless power transfer, is the technology that enables a power source to transmit electromagnetic energy to an electrical load across. Wireless power transfer wpt is the transmission of electrical power without wires and is based on technologies using timevarying electric, magnetic, or electromagnetic fields. Acknowledgement this work was supported by associated professor mohd fareq, muhammad irwanto bin misrun. Oct 17, 2015 wireless battery charger circuit advantages. Number of household points receives electricity at the same frequency using. No longer just a lowpower solution, wireless power offers a multitude of realworld applications with anywhere from 0 to over 200w of power transfer. Wireless power transfer wireless power transfer is the transmission of electrical energy from a power source to an electrical load without interconnecting conductors. Magnetic resonance inductive coupling resonant inductive coupling or electrodynamic inductive effect is the solution for the main problems associated with nonresonant inductive wireless power transfer systems, specially the efficiency dependence on the power transmission distance 8. The result shows that the wireless power transfer is suitable to be implemented for mobile phone charger. Wireless power transfer principles and engineering. The project is a device to transfer power wirelessly instead of using 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 power across space.
Already back in 2007, fmtc demonstrated the technical feasibility of inductive wireless power transfer based on strongly coupled magnetic resonant circuits at 27. This book is a collection of contemporary research and developments in the area of wireless power transfer technology. Wireless power transmission wpt is the efficient transmission. Bidirectional power transfer wireless v2g large ev batteries can help utility companies stabilize the grid or even power your home. This power is made to be transferred within a small range only for example charging rechargeable batteries etc. Our wireless power transfer designs allow charging for completely. Sep 27, 2017 wireless electricity ppt presentation pdf report. The concept of wireless power transfer was realized by nikolas tesla. Commonly referred to as dynamic wireless power transfer. The transmitter checks each coil coupling to the receiver, and then selects the coil with the.
Wireless transmission is useful in cases where interconnecting wires are inconvenient, hazardous or impossible. This paper analyzes the bibliography on wireless power transfer research covering the period of 200120 using two databases web of science and scopus. Pdf wireless power transfer irjet journal academia. Wireless power transmission through solar power system. Wireless power transfer wpt devices operating at frequencies above 9 khz are intentional radiators and are subject to either part 15 andor part 18 of the fcc rules. Multiinput single output wireless power transmission misowpt systems have decisive advantages concerning flexible receiver.
Low wireless power transfer using inductive coupling for. Applications involving microwaves, solar cells, lasers, and resonance of electromagnetic waves have had the most recent success with wpt. Gerstacker institute for digital communications, friedrichalexander university fau, erlangennurnberg, germany. Inductive wireless power transfer wpt is limited to just a couple of millimeters distance between the. The transmission of power can be through inductive coupling for short range, for midexpand resonant. In an electrical device, microwaves are used to transmit electromagnetic radiation from a source to a receiver. Sumit thakur ece seminars wireless electricity ppt presentation pdf report. Wireless power transfer is a generic term for a number of different technologies for transmitting energy by means of electromagnetic fields. The concept of wireless power transfer was introduced by nikolas tesla. In their wireless power system, they use a pair of strongly magnetically coupled resonators, with a transmitter and a receiver forming a resonant. The design and optimization of a wireless power transfer. The current electricity generation system we have a tendency to waste over half its resources.
The transmitter checks each coil coupling to the receiver, and then selects the coil with the best coupling for the power transfer. It consists of chapters that focus on interesting topics of. Wireless power transfer via strongly coupled magnetic resonances andre kurs, 1 aristeidis karalis,2 robert moffatt, j. Modulating wireless power signal to carry data bidirectionally. This paper proposes a wireless power transfer system that consists of a transmitter with a resonator and a receiver without a resonator. This paper discusses the nearfield inductive coupling wireless power transfer wpt at the system level, with detailed analyses on each stateoftheart wpt. Wireless power transfer an overview sciencedirect topics.
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 at a special device called a rectenna. A technical asset for engineers in the power electronics, internet of things and automotive sectors, wireless power transfer for electric vehicles and mobile devices is an essential design and analysis guide and an important reference for graduate and higher undergraduate students preparing for careers in these industries. Wireless power transfer for electric vehicles and mobile. Wireless power transmission using magnetic resonance mandip jung sibakoti and joey hambleton cornell college phy312, december 2011, professor derin sherman 1. Launched in 2014, wireless power transfer is the first journal dedicated to publishing original research and industrial developments relating to wireless power. The discussion began by describing the basic aspects of the wpt system. With a slab of metamaterial, the nearfield coupling between two resonant coils can be enhanced. Alliance for wireless power and wireless power consortium. It was first studied by the serbianamerican physicist nikola tesla in late 1800s. Wireless power transfer for access limited wireless. It involves the use of laser beam to transfer power in form of light energy, which is converted to electric energy at the receiver end. Introduction to wireless power transfer technical articles. Severe volume restrictions on the coils and circuitry. Multiplexed supply of a miso wireless power transfer system for.
Pdf wireless power transfer system architectures for portable or. An inductive wireless power transfer wpt system consists of transmitter electronics, transmit coil, receive coil and receiver electronics. In last few years, our society experienced a silent, but quite dramatic, revolution in terms of the number of autonomous electronic devices e. Wireless technology can be used for transmission of electric power wirelessly from one end to other end. The goal of the project was to develop a wireless power transfer wpt system and implement it in innovative flooring. Wireless power transfer via strongly coupled magnetic. The receiver is simple, but this system has longer transfer distance than electromagnetic induction. 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. Figure 1 a resonant wireless power transfer system consists of a driven lcresonator on the. The objective of this paper is to give an idea of wireless power transfer which is in developing stage and it can be a future existence.
Wpt wireless power transfer not only decreases the risk of shock and stops to plug often into the sockets. Thus, this is all about wireless power transmission, wireless power transfer circuit working and its applications which include simple electronic devices like mobile phones, mobile chargers, etc wireless power transfer not only reduces the risk of shock and stops to plug frequently into the sockets. The project was done at nextfloor oy, a company based in helsinki, finland. We will report some differences found in the databases used in this research. 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 circuit and its working elprocus. Wpt is useful to power electrical devices where are inconvenient, or not possible, as is the case of body embedded sensors, actuators. Tida00762 compact 1w wireless power solution tida00334 small wireless transmitter solution, 2. The future aguboshim, emmanuel chukwujioke postgraduate student, nnamdi azikiwe university, awka, anambra state, nigeria. Mar 20, 2020 wireless power transfer is not a new idea demonstrations of such technology can be traced back over a century, to the work of nikola tesla 1 but the approach has received renewed attention. To give you a taste whats possible in wireless power transfer applications, wed like to share some examples of this technology in combination with others, such. The journal pulls together research from across the field, covering aspects such as rf technology, nearfield energy transfer, energy conversion and management, electromagnetic harvesting, novel materials and fabrication techniques. A network comprised of interconnected sensor nodes exchanging sensed data by wired or wireless communication. 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.
In the last few years it has expanded into automotive, aviation, consumer electronics, healthcare and military industries by collaborating with big players such as toyota and therotac, by providing them. Figure 1 a resonant wireless power transfer system consists of a driven lcresonator on the transmitter side and another lcresonator on the receiver side inductive wireless power transfer wpt is limited to just a couple of millimeters distance between the transmitter and the receiver. The invention of various wireless technologies are great revolution in the field of communication. Pdf the goal of the project was to develop a wireless power transfer wpt system and implement it in innovative flooring. Implication of wireless power transfer for low power appliances. The wireless power transfer is not much affected by shielding materials such as the presence of hands, books and types of plastics.
In some instances, this technology is also referred to as magnetic resonance, and it is often contrasted to. Due to the extinguishing energy resources, there is a serious search of alternative energy resources which are endless and ecofriendly. Wireless power transfer system designed for an automotive application. The focus of this article has been an overview of the wireless power transfer mechanism, and its aim has been to highlight the many benefits and applications of wpt. A wireless power transfer approach qingqing zhang, student member, ieee, wen fang, qingwen liu, senior member, ieee, jun wu, senior member, ieee, pengfei xia, senior member, ieee, and liuqing yang, fellow, ieee abstractwireless power transfer wpt is a promising. Alliance for wireless power standard describes analogue power transfer for both inductive and resonant, digital transceiver communication and uses a transfer technology using magnetic resonance. The analog devices line of wireless power transfer products include receiverchargers and transmitters, which help eliminate many of the issues that designers face when powering their applications through exposed ohmic contacts. 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. A standard for wireless power transfer wpt based on these charge levels will enable selection of a charging rate based on vehicle requirements, thus allowing for better vehicle packaging, and ease of customer use. The laser gets powered using sources like sun or any electricity generator and accordingly generates high intensity focused light. Introduction our project was based upon a mit published paper in the year 2007 titled wireless power transfer via strongly coupled magnetic resonances 1.
Nov 17, 20 wireless energy transfer or wireless power is the transmission of electrical energy from a power source to an electric load without interconnecting man made conductors. Wireless power transfer circuit working, advantages and. Advanced wireless power transfer system nevon projects. Standardized wireless power transfer wpt through wireless charging allows the bevphev customer an automated and more convenient and alternative to plugin conductive charging. In this paper, we will report some recent progress on wireless power transfer wpt based on resonant coupling. The name wireless power transmission states the transfer of electrical power from a source to an electrical device without the help of wires. Fast wireless charging for all classes of vehicles. Witricity delivers wireless power at a distance to any device enabling new experiences with products that transform the way we live, work and move. The technology for wireless power transmission or wireless power transfer wpt is in the forefront of electronic development. The mit team demonstrated the highly resonant technique using a magnetic field to transfer energy over a midrange distance of 2 meters, and an industry was born. Our wireless power transfer designs allow charging for completely sealed enclosures in applications that are exposed to d. As the need for more convenient methods of charging electrical equipment has grown, wireless power transfer wpt, a novel power supply. Wpc, pma, a4wp comparison electromagnetic field safety implications of wpt theory of operation 20 min.
Wireless electricity or witricity is nothing but the transfer of electrical energy or power over a distance without the utilization of wires. Resonant wireless power transfer infineon technologies. Power transfer near and far field existing and emerging wireless power standards 5 min. At the moment, wireless power transmission is in the forefront of electronics research. Considering loosely coupled coils modeling resonant power transfer. The last major benefit of wireless power is increased product life. Getting rid of cables for the ease of operators of medical devices. Wireless chargers can be used to charge mobiles, camera batteries, bluetooth headsets etc. This system utilizes magnetic coupling and resonance. The specification supports home private charging and public wireless charging. Challenge power and data is to be transferred using a singular inductive coupler.
Companies like energous and ossia are developing true wireless charging that works over the air so you can power up at a distance. The transfer of power from source to receiver is a technology that has existed for over a century. Wireless power transfer wpt, wireless power transmission, wireless energy transmission wet, or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link. Results of our research on the feasibility of using resonant objects, strongly coupled through the tails of their nonradiative modes, for midrange i. 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. Another key benefit to wireless power is the highly expandable power range it offers.
Wireless power transfer circuit wireless mobile charger. In 2007, a group of researchers at mit achieved wireless power transfer, powering a light bulb of 60w over distances exceeding 2 meters with efficiency of around 40% 4. The specific applicable rule part depends on how the device operates, and if there is communication between the charger and device being charged. The sensor data from the rotating part wheel is transferred back via the same wireless link. Wireless power transfer for access limited wireless underground sensor networks s. Essentially the customer simply needs to park into a sae j2954 compatible parking space in order to charge the vehicle. 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.