Analysis and modeling of wireless battery charger using pcb. Pdf design of online electric vehicle olev researchgate. The power converter takes electricity from the grid with the typical. It is designed with focus on industrial feasibility and cost reduction. Olev selected as 1 of 10 emerging technologies in 20 by world economic forum. Survey of the operation and system study on wireless charging. In this paper, a model and algorithm for the optimal design. Kaist launches first roadcharged olev electric buses in. Several years ago the korean advanced institute of technology kaist unveiled their on line electric vehicle olev charging. Here at, we are committed to protecting your privacy. Sujins work on capacitancetodigital converter with sensors using standard cmos and bondwires has been accepted to ieee journal of solidstate circuits. Kaist has filed over 180 patents on this and related technologies. Process transmitters isolate, filter amplify, and convert sensor signals to 420ma current or 010v voltage signals for interfacing with controllers and other instrumentation. Korea olev concept vehicle sees the future, and its.
The online electric vehicle olev, developed by the korea advanced institute of science and technology kaist, is an electric vehicle that can be charged while stationary or driving, thus. The ministry of science, ict and future planning misp of the republic of korea announced the 2015 knowledge awards on october 20, 2015. Demonstration of wirelesscharging technology for 1mw rapidtransit railways. Buck converter, mosfet, mobile charging system, mppt technique,pv system. Olev powered buses enter regular use in korea one of gumis two new buses that will draw power from the road using the online electric vehicle olev system. The kaist olev is a novel, ecofriendly concept that is a product of arduous efforts to resolve fundamental problems with previously developed electric vehicles concerning battery capacity and weight, price of raw materials, recharging time and preparation of charging stations. To fix these issues, kaist came up with the generation 2 olev. Overview of wireless charging technologies for electric. Mar 10, 2010 the online electric vehicle olev gathers power magnetically from electric strips buried below the roads surface as it travels, eliminating the need for longterm recharging. Try out the html to pdf api kaist launches first roadcharged olev electric buses in south korea several years ago the korean advanced institute of technology kaist unveiled their on line electric vehicle olev charging system, which promised to charge cars and even city buses wirelessly through induction systems contained. Aug 06, 20 the online electric vehicle olev, developed by the korea advanced institute of science and technology kaist, is an electric vehicle that can be charged while stationary or driving, thus.
Also, explore many other unit converters or learn more about luminance unit conversions. Two kaist professors received the award, respectively. Introduction of a novel application in on line electric vehicle. Wireless power transfer systems for roadwaypowered electric vehicles. Using roads as charging stations for electric vehicles. Using wireless charging, an electric vehicle can be charged by power cables embedded in the road.
Andrew brownsae, usa, kayano fukudajst, japan, steve shiadoverpath, usa. Its the latest step in the development of the korea advanced institute of science and technologys kaist s online electric vehicle olev system, in which electric cables embedded in the. Pdf to office conversion is fast and almost 100% accurate. Kaist rolling out dynamic wireless charging in buses in south korea. A unified pi voltage controller is used for controlling the switching pulses for each mosfet switches. Mar 10, 2010 kaist says that if the olev charging method is applied to the public bus system in south korea, the underground power lines need to be installed on only 20 percent of the total bus route at places. Kaist constructed electric buses powered by an online electric vehicle olev system.
On line electric vehicle olev project and vehicular. Slide 4 p1 standard charging for evs use a charging power of 3. The department of chemistry at kaist guarantees a competitive startup package appropriate for the needs of the subdiscipline. Studies for applying wireless inductive power technology to vehicle system have been being made. The korea advanced institute of science and technology kaist is trialing a. In accordance with university regulations, faculty members with extraordinary research accomplishments, teaching records, and services to the kaist community will be granted tenure within a few years. How to design multikw converters for electric vehicles. Olev selected as 1 of 10 emerging technologies in 20 by. Typically the motor used in the phase converter is larger than the loads it is supplying. In this paper, three case studies involving large, highly innovative systems are presented to demonstrate the power of rational design and system development.
The first commercial dynamic wireless charging electric vehicle, the online electric vehicle olev tm, was deployed in 2009 by the korea advanced institute of science and technology kaist, south korea, and received ample media attention miller et al. How the uk became the country with the biggest number of. Kaist proposed online electric vehicle olev using wpt technology, where the system efficiency reaches 80% at a distance of 25 cm with the power of 25 kw 5 7. Wireless power transfer wpt technology for semiconductor wafer fab young jae jang, phd min seok lee jin hyeok park industrial and systems engineering kaist. Since its battery capacity also is reduced to 20% of that of a typical pure electric vehicle, the olev is regarded as an enabling technology to speed up the commercialization of electric vehicles. Stochastic systems modeling for wireless charging electric. Olev technology consists of inverters that convert 3phase 380v power to 20khz 200a, power supply lines installed under the road, pickup device that converts magnetic fields to electric energy, motors that drive vehicles, and a battery that stores energy. Kaists wireless online electric vehicle, olev, runs inner. In the gen 2 olev, the current in the primary coil was doubled to create a stronger magnetic field. The olev system on these routes is able to supply 100 kw power with 85% of transfer efficiency. The online electric vehicle olev, developed by kaist, is an electric vehicle that can be charged while stationary or driving, thus removing. Kaist is the first in the world to introduce shaped magnetic field in resonance smfir technology that safely delivers energy to an electric vehicle wirelessly while the vehicle is in motion. Boost your productivity with the best pdf to word converter. Kaist has installed an olev system in the seoul grand park, which has been operational since march 2010.
Suh organizing committee chair of ifev2011 vice president, kaist, korea opening remark professor dongho cho. The output leads from the phase converter are connected across the three motor terminals. This type of charger is the most extended in europe and is a single phase an ac charger. Kaist,1g olev 1 3 80 kaist 2g ole 17 6 72 kaist 3g olev. Kaists wireless online electric vehicle, olev, runs inner city roads. Dcdc converter efficiency data the fraunhofer iisb developed in cooperation with the audi ag this high efficient and compact dcdc converter for automotive and industrial applications with harsh environmental conditions. It functions by using a segmented recharging road that induces a current in pickup modules on the vehicle. Yearly number of trips per bus is equal for olev, bev, and ice. An example for this technology was tested by korea advanced institute of science and technology kaist. Iec international standards central to the adoption of ev wpt. Feb 14, 20 kaist online electric vehicle olev jaegue shin.
Electric buses provide public transportation services and. Number of buses olev bev purchased is the same as the number. Kaist rolling out dynamic wireless charging in buses in. Two olev buses will run an inner city route between gumi train station and. We are looking forward to welcoming you at the 2010 international forum on electric vehicle on june 17. The buck converters main purpose is to lower the dc link voltage. A pickup device installed under the vehicle works to collect the magnetic field efficiently from underroad power cables and convert it into electric energy for. Online electric vehicle olev was developed to overcome the limitations of the current generation of evs. Presets use the presets to convert your videos into a format suitable for your multimedia devices such as iphone, ipod, ipad, android, ps3, psp. Olev buses will greatly contribute to decreasing the. Free video converter is the most powerful and the fastest conversion software.
Select multiple pdf files and merge them in seconds. Korea debuts worlds first wirelessly charged vehicle. The korea advanced institute of science and technology kaist has developed and deployed a prototype implementation of its online electric vehicle olev technology that picks up electricity from power cables buried underground through a noncontact magnetic charging method. Kaist was established by the korean government in 1971 as the nations first researchoriented science and engineering institution. The korea advanced institute of science and technology kaist and the korea railroad research institute krri have developed a wireless power transfer technology that can be applied to high. Initial energy logistics cost analysis for stationary. Kaist olev dynamic charging ev roadway charging ev move. The second model is the open environment model in which the olev based system operates in normal traf. For example, a rotary converter designed for a 5 kw load might use a 7 kw motor frame.
Free online luminance converter converts between 19 units of luminance, including candelasquare meter, candelasquare centimeter, candelasquare foot, candelasquare inch, etc. Satellite up and downconverter indoor outdoor single dual triple band single dual channel s, c, x, ku, k dbs, ka, and qband work microwaves satellite upand downconverters are designed to support the demanding requirements of analog and digital satellite transmissions, such as tv uplinks and highspeed data networks. Technologys kaist s online electric vehicle olev system, in which electric. Kaist rolling out dynamic wireless charging in buses in south. Your email address will never be sold or distributed to a third party for any reason. The olev was recently selected as one of the worlds. Opening ceremony for the pilot olev bus service 14. Result total cost olev outperforms bev and ice in operational costs.
Seungyoung ahn, taigon song, heejae lee, junggun byun, deogsoo kang, yangbae chun, jaeha yim, junso pak, chun taek rim, dongho cho, and joungho kim, active shield to minimize magnetic flux density for online electric vehicle olev application, electromagnetic compatibility europe conference, pp. Wireless power transfer systems for roadwaypowered. Each day buses log thousands of kilometers following routes on the streets of cities and towns around the globe. Kaist wireless online electrical city buses in south korea 1 of 3. Optimal design of wireless charging electric bus system. It may seem unremarkable, then, for a fleet of buses to have provided a total of 500 000 kilometers of service this january. The kaist olev uses a resonant coupling technique that. Kaist introduces online electric vehicle with inductive. An online electric vehicle olev is an electric vehicle that charges wirelessly while moving using electromagnetic induction the wireless transfer of power through magnetic fields. Line electric vehicle olev at kaist olev is the official name for the kaist wireless. System optimization of the online electric vehicle operating. The buses are deployed in gumi city for public transportation, running on two fixed routes covering a total distance of 24 km as shown in figure 2. Licensed to youtube by adrev for rights holder on behalf of posthaste sourceaudio. Charging on the go wireless charging advances with iec international standards.
Established in 2009, the awards are presented to korean scientists whose publications have contributed to the international science community. Wireless power transfer technology for high capacity transit. The on line electric vehicle system from kaist wirelessly charges. Kaist launches first roadcharged olev electric buses in south. Dcdc converters are considered to be of great economical importance in todays society, and are perhaps one of the few electronic circuits that are commonly used in switching power supplies, generally are widely used at home solar systems to produce the desired output power6. Licensed to youtube by adrev for rights holder on behalf of posthaste.
A significant body of literature has been published specifically on the technical. According to the inventors at kaist, the smfir technology provides a solution to the. The buck converter, in addition to the boost converter, makes up the part of the bidirectional converter. Wireless online electric vehicle, olev, runs inner city roads. South korea rolled out the rechargeable carpet for tuesdays debut of the worlds first wirelessly charged online electric vehicle olev. Michael coe olev how the uk became the country with the biggest number of rapid chargers in the eu. Cho chun shik graduate school of green transportation. Operation of dcdc converter for hybrid electric vehicle. Kaist formally the korea advanced institute of science and technology is a national research university located in daedeok innopolis, daejeon, south korea. By lowering the voltage, the dc battery can be charged safely. From a few years ago, kaist also has developed and commercialized online electric vehicle olev system using wireless magnetic resonance technologies to reduce weight, volume and cost of battery in conventional battery powered electric vehicles. Koreas online electric vehicle gathers power from the road. Signal conditioners, signal conditioning signal converters. If the buck converter were to not be implemented, high voltage could potentially cause harm to the battery.
The kaist olev shuttle bus and olev trolleys in seoul grand park are examples of an olev based transportation system operating in a closed environment. The olev was recognized as one of the 50 best innovations of 2010 by time magazine the 50 best innovations, 2010, and is now considered a potential solution for the next generation of electricpowered public bus systems in a several metropolitan cities in south korea korean electric buses go wireless, 20, south koreas innovative solution, 2011, the 50 best innovations, 2010. Seungyoung ahn associate professor cho chun shik graduate school of green transportation kaist hev tcp task 26 workshop, versailles, france. For scientific, educational and general purposes to convert from one unit to another. Kaist says that if the olev charging method is applied to the public bus system in south korea, the underground power lines need to be installed on only 20 percent of. Detailed avionics part information page for bendixking 071104101 ka39 voltage converter with price, availability, stock, inventory, features, specifications, and description. This work describes the innovative smfir technology used in the kaist online electric vehicle olev project as well as its impact on the future of urban transportation. Wireless power transfer systems for roadwaypowered electric. Yes of course it is better to think in terms of power loss. On line electric vehicle olev project and vehicular wireless power transfer technology 2017. The purpose of this paper is to describe the basic design process and concept of smfir. Overview of wireless charging technologies for electric vehicles.
Review and evaluation of wireless power transfer wpt for. Apr 01, 20 the olev system doesnt need charging stations because the vehicle is charged wirelessly in real time while running on the road. The korea advanced institute of science and technology kaist is trialing a bus application for its online electric vehicle olev technology, a dynamic wireless charging technology that recharges a vehicles battery while the vehicle is in motion. Suvs 17 20 83 waseda advanced electric bus 10 30 92 witricity with mit 18 3. The online electric vehicle olev, developed by the korea advanced institute of science and technology kaist, is an electric vehicle that can be charged while stationary or driving, thus removing the need to stop at a charging station. The olev system on these routes is able to supply 100 kw power with 85% of transfer efficiency 2. Back to news overview 10 years of electric buses with ipt charge. Korea olev concept vehicle sees the future, and its magnets. Kaist s wireless online electric vehicle, olev, runs inner city roads for the first time anywhere, electric buses provide public transportation services and are recharged right from the road.