In the first part, the basic principles of wireless power transfer are described with the different transmissions paths, the leading standards and. The future aguboshim, emmanuel chukwujioke postgraduate student, nnamdi azikiwe university, awka, anambra state, nigeria. 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. Principles and engineering explorations, encompasses theory and engineering technology, which are of interest for diverse classes of wireless power transfer. Each method has its own characteristics that are useful for certain applications. Download wireless communications by andrea goldsmith solution. Proceedings of the ieee wireless power transfer conference wptc, may 15, boulder. The main objective of this project is to develop a device for wireless power transfer. Wireless power transfer via strongly coupled magnetic resonances andre kurs, 1 aristeidis karalis,2 robert moffatt, j. Investigation of power transfer density enhancement in large airgap capacitive wireless power transfer systems. Study methods of wireless power transfer technology in.
Design and construction of wireless power transfer system using. His research interests include wireless power transfer, microwave power transfer, and solar power satellites. Most of these applications transfer low amounts of power, in the range of microwatts to milliwatts, for data. Read online wireless communications by andrea goldsmith solution. Nikola tesla dream in the early 20th century of a world wireless system led him to build the wardenclyffe tower, a prototype base station serving as an emitter for his world wireless system. Alliance for wireless power and wireless power consortium. Nasa wireless power transmission demonstration youtube.
Wireless power transfer free download as powerpoint presentation. Severe volume restrictions on the coils and circuitry. Modulating wireless power signal to carry data bidirectionally. Technical advisor to momentum dynamics contributions from. The microwave oven uses the concept of wireless power transfer to heat food. We then discuss the wireless vision in more detail, including the technical challenges that must be overcome to make this vision a reality. 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. An added benefit is the capability to step the primary voltage either up or down. Underwater wireless power transfer smart ocean energy. The concept of wireless power transfer was realized by nikolas tesla.
Introduction our project was based upon a mit published paper in the year 2007 titled wireless power transfer via strongly coupled magnetic resonances 1. He demonstrated the first 5m and 12m distance wpt using innovative. The most common form of wireless power transmission uses direct induc tion. This book focuses on inductive wireless power transfer wpt which relies on coil. Commonly referred to as dynamic wireless power transfer. Advanced wireless power transfer vehicle and infrastructure analysis. Wireless power transfer algorithms, technologies and applications. 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. This book is a collection of contemporary research and developments in the area of wireless power transfer technology.
This book builds upon that dream and is a result of intensive research interest in powerline, machine. A developers guide apec2017 industry session 2630 march 2017 tampa, fl dr. Efficient and easytouse wireless charging is the next major step in freeing our devices from their wired connections. This technology is being incorporated into all kinds of devices and systems. Wireless power transfer an overview sciencedirect topics. The probability density functions pdf of the noise and ms with normal.
A network comprised of interconnected sensor nodes exchanging sensed data by wired or wireless communication. Wireless power transfer via strongly coupled magnetic. Abstract the main objective of this project is to develop a system of wireless power transfer for medical applications. Number of household points receives electricity at the same frequency using. He has published several books and over 180 technical. The goals were met and the 40 watt wireless power transfer system showed. In this book, a recent inductive link topology which employs 4 coils at resonance is employed in order to realize magnetic coupling. About this book recent advances in wireless power transmission wpt technologies have enabled various engineering applications with potential product implementation. It consists of chapters that focus on interesting topics of. The sensor data from the rotating part wheel is transferred back via the same wireless link. Resonant wireless power transfer abstract our mobile devices are becoming more and more wireless. In this way, one can design a wirelesspowertransfer system for simple electronic devices like mobile charges, mobile phones which not only reduces the risk of shock, but also the efforts to plug. Laser is another method which uses similar concept as wireless power transfer.
This book describes the fundamentals and applications of wireless power transfer wpt in electric vehicles evs. Wireless power transmission using magnetic resonance. As a matter of fact, wireless power transfer plays an important role in many. Wireless power supply system for ev inductive type 1mm 1cm 10cm 1m 10m 100m 100% 50% 0% transfer distance efficiency resonance type inductive type15w inductive type50kw ref. Wireless power transmission technology working with. The other applications of wpt are wireless power source or ubiquitous power source, rf power adaptive rectifying circuits and wireless sensors. 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. The wireless power transfer concept is continuously and rapidly evolving and new challenges arise every day. Wireless power transfer between distance and efficiency. Low wireless power transfer using inductive coupling. Jul 22, 2019 in an electrical device, microwaves are used to transmit electromagnetic radiation from a source to a receiver. Trilogy of wireless power transfer wurth elektronik. Wireless power transfer wpt is the transmission of electrical power without wires and is based on technologies using timevarying electric, magnetic, or electromagnetic fields.
Wireless power transfer for electric vehicles and mobile. While data transfer of mobile devices is already wireless, charging is typically still performed with cables. This can be performed by inductive coupling of magnetic fields as well as by direct radiative transfer via beams of electromagnetic waves, commonly radiowaves, microwaves or lasers. Challenge power and data is to be transferred using a singular inductive coupler. The book trilogy of wireless power transfer from wurth elektronik consists of three different parts which are the basic principles, the wireless power transfer system and the application part. The base station was to supply wireless supply of electrical energy to a distant receiver. Wireless power transfer system designed for an automotive application. Wireless power transmission technology with applications. Written by innovators in the field, this comprehensive resource explains the fundamental principles. 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. This book, organized into ten chapters, presents interesting novel solutions in the exploitation of the near and farfield techniques of. This presentation does not contain any proprietary, confidential, or otherwise restricted information. Wireless power transmission using magnetic resonance mandip jung sibakoti and joey hambleton cornell college phy312, december 2011, professor derin sherman 1.
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. The transfer of energy takes place by electromagnetic coupling through a process known as mutual induction. Wireless power transfer principles and engineering. Resonant wireless power transfer infineon technologies. Aaron brooker, evan burton, joann wang, and arnaud konan. Wireless power transfer wpt is a technology that allows devices to be powered wit. This book discusses, for the first time, wireless power transfer in the ocean environment. Recent wireless power transfer technologies intechopen. Pdf this chapter provides a general overview of magnetic resonant wireless power transfer systems based on network models. We will also describe the current wireless systems in operation today as well as emerging.
Wpt is useful to power electrical devices where are inconvenient, or not possible, as is the case of body embedded sensors, actuators. Advanced wireless power transfer and infrastructure analysis. Dec 30, 20 naoki shinohara is professor at the research institute for sustainable humanosphere rish at kyoto university in japan. Demonstrates the power transmission system for space solar power. This book builds upon that dream and is a result of intensive research in powerline, machine to machine communications, and wireless power transfer globally. Wireless power transfer river publishers series in. Introduction to wireless power transfer technical articles. At the moment, wireless power transmission is in the forefront of electronics research.
Results of our research on the feasibility of using resonant objects, strongly coupled through the tails of their nonradiative modes, for midrange i. Pdf the goal of the project was to develop a wireless power transfer wpt system. Next, among possible wireless power transfer methods, it is explained that why magnetic coupling befits the best for the target application and its specifications. There are different methods to wirelessly transfer power between a source and a receiver. The components used to build wireless power transfer can be divided into 3 parts. This book puts stateoftheart research and development in wireless power transfer technologies together. Wireless power transfer wpt has recently evolved as a very active research.
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. Wireless energy transfer or witricity wireless electricity transfers electricity instead of data. Peter schrafel principal power scientist, momentum dynamics. Rim developed the wireless power transfer wpt of online electric vehicles that was selected as the 50 best inventions of 2010 by time and the first of 10 emerging technologies in 20 by the world economic forum. It represents the stateoftheart at the time of writing, and addresses a unique subject of great international interest in terms of research. The transfer of power from source to receiver is a technology that has existed for over a century. Wireless power transfer is a generic term for a number of different technologies for transmitting energy by means of electromagnetic fields. Wireless charging of electric vehicles power electronics. 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. The receiver is simple, but this system has longer transfer distance than electromagnetic induction. The project was done at nextfloor oy, a company based in helsinki, finland. Fast wireless charging for all classes of vehicles.
As a result of these rapid changes, the need for uptodate texts that address this growing field from an interdisciplinary perspective persists. Getting rid of cables for the ease of operators of medical devices. 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 is the second edition of a well received first book, which published in 2012. In last few years, our society experienced a silent, but quite dramatic, revolution in terms of the number of autonomous electronic devices e.
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. 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. This chapter provides a general overview of magnetic resonant wireless power transfer systems based on network models. 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. However, for all the mobility we enjoy these days, we still tether our mobile devices to the wall at the end of the day to recharge them. The power transferred to a receiver load at resonance is derived and explained. This book focuses on inductive wireless power transfer wpt which relies on coil resonators and power converters, starts with background and basic theories of wpt which are essential for beginners in this field, and addresses two major challenges of wpt. Here, the most common methods of wireless power transfer are briefly discussed. Many people use pace makers an electronic device that works in place of a defective heart valve implanted in their. 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.
Wireless power transfer via radiowaves wiley online books. Wpt can be utilized to charge batteries in various pieces of equipment without the need for a wired connection. Wireless power transfer wpt, in its general term, has been around us for decades in applications such as telemetry, satellite communications, and radio frequency identification rfid tags. No hassle with cables and plugs, just place the device on a pad and thats it. The name wireless power transmission states the transfer of electrical power from a source to an electrical device without the help of wires. Wireless power transmission is the transmission of electrical energy without using any conductor or wire.
The base station was to supply wireless electrical energy to a distant receiver. The primary and secondary circuits of a transformer are electrically isolated from each other. This book builds upon that dream and is a result of intensive research interest in powerline, machine to machine communications and wireless power transfer globally. Wireless power transfer fundamentals and technologies. This system utilizes magnetic coupling and resonance. 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. Contrary to general belief, wireless power transfer wpt has been in use for a long time fig. Mohammad etemadrezaei, in power electronics handbook fourth edition, 2018. From mobile, cablefree recharging of electric vehicles, smart phones and laptops to collecting solar electricity from orbiting solar farms, wireless power transfer wpt technologies offer consumers and society enormous benefits. Wireless power transfer allows a convenient, easy to use battery charging of mobile phones and other mobile devices. This paper proposes a wireless power transfer system that consists of a transmitter with a resonator and a receiver without a resonator. The goal of the project was to develop a wireless power transfer wpt system and implement it in innovative flooring. Wireless power transfer wpt enables power to be transferred from a grid or storage unit to a device without the need for cable connections.
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. Rim also developed wpt for stationary ev charging, mobile devices, robots, and drones. Wireless power transfer massachusetts institute of technology. Wireless power transfer via strongly coupled magnetic resonances 1. Wireless power transfer massachusetts institute of. Wireless power transfer wireless power transfer is the transmission of electrical energy from a power source to an electrical load without interconnecting conductors. 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. 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. It was first studied by the serbianamerican physicist nikola tesla in late 1800s. Wireless power transfer using maxwell and simplorer. Topics covered include power electronic techniques, advanced control strategies, as well as classic and emerging applications such as smart ocean energy systems and wireless power transfer and charging of underwater autonomous vehicles.
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