Wireless power transfer systems for roadwaypowered electric vehicles. On line electric vehicle olev project and vehicular. Korea olev concept vehicle sees the future, and its magnets. Using wireless charging, an electric vehicle can be charged by power cables embedded in the road. Licensed to youtube by adrev for rights holder on behalf of posthaste sourceaudio. Koreas online electric vehicle gathers power from the road. 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. 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. The kaist olev uses a resonant coupling technique that. 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 rolling out dynamic wireless charging in buses in south.
Licensed to youtube by adrev for rights holder on behalf of posthaste. Andrew brownsae, usa, kayano fukudajst, japan, steve shiadoverpath, usa. Review and evaluation of wireless power transfer wpt for. Survey of the operation and system study on wireless charging.
Number of buses olev bev purchased is the same as the number. Kaist rolling out dynamic wireless charging in buses in. Kaist has installed an olev system in the seoul grand park, which has been operational since march 2010. Korea olev concept vehicle sees the future, and its. Boost your productivity with the best pdf to word converter. Two olev buses will run an inner city route between gumi train station and. The olev system on these routes is able to supply 100 kw power with 85% of transfer efficiency 2. 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. Optimal design of wireless charging electric bus system. Technologys kaist s online electric vehicle olev system, in which electric. According to the inventors at kaist, the smfir technology provides a solution to the. For scientific, educational and general purposes to convert from one unit to another. The ministry of science, ict and future planning misp of the republic of korea announced the 2015 knowledge awards on october 20, 2015. Free video converter is the most powerful and the fastest conversion software.
The output leads from the phase converter are connected across the three motor terminals. Iec international standards central to the adoption of ev wpt. Kaist wireless online electrical city buses in south korea 1 of 3. Yearly number of trips per bus is equal for olev, bev, and ice. Signal conditioners, signal conditioning signal converters.
Michael coe olev how the uk became the country with the biggest number of rapid chargers in the eu. Also, explore many other unit converters or learn more about luminance unit conversions. Kaist launches first roadcharged olev electric buses in south. 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. System optimization of the online electric vehicle operating. Wireless power transfer systems for roadwaypowered electric. 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.
Operation of dcdc converter for hybrid electric vehicle. Olev buses will greatly contribute to decreasing the. Overview of wireless charging technologies for electric vehicles. 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.
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. This type of charger is the most extended in europe and is a single phase an ac charger. 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. The online electric vehicle olev, developed by kaist, is an electric vehicle that can be charged while stationary or driving, thus removing. Kaist,1g olev 1 3 80 kaist 2g ole 17 6 72 kaist 3g olev. Pdf design of online electric vehicle olev researchgate. 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. 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. 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.
How the uk became the country with the biggest number of. For example, a rotary converter designed for a 5 kw load might use a 7 kw motor frame. Wireless online electric vehicle, olev, runs inner city roads. Kaists wireless online electric vehicle, olev, runs inner. Feb 14, 20 kaist online electric vehicle olev jaegue shin. Wireless power transfer systems for roadwaypowered.
It may seem unremarkable, then, for a fleet of buses to have provided a total of 500 000 kilometers of service this january. The olev system on these routes is able to supply 100 kw power with 85% of transfer efficiency. Apr 01, 20 the olev system doesnt need charging stations because the vehicle is charged wirelessly in real time while running on the road. 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. 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. Detailed avionics part information page for bendixking 071104101 ka39 voltage converter with price, availability, stock, inventory, features, specifications, and description. For the demonstration, researchers integrated the single converter system into an electric toyota rav4 equipped with an additional 10 kwh battery. Kaist has filed over 180 patents on this and related technologies. It functions by using a segmented recharging road that induces a current in pickup modules on the vehicle. Sujins work on capacitancetodigital converter with sensors using standard cmos and bondwires has been accepted to ieee journal of solidstate circuits. Wireless power transfer technology for high capacity transit. To fix these issues, kaist came up with the generation 2 olev.
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. 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. Olev selected as 1 of 10 emerging technologies in 20 by world economic forum. Olev selected as 1 of 10 emerging technologies in 20 by.
On line electric vehicle olev project and vehicular wireless power transfer technology 2017. Several years ago the korean advanced institute of technology kaist unveiled their on line electric vehicle olev charging. If the buck converter were to not be implemented, high voltage could potentially cause harm to the battery. By lowering the voltage, the dc battery can be charged safely. The purpose of this paper is to describe the basic design process and concept of smfir. 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. In this paper, a model and algorithm for the optimal design. Your email address will never be sold or distributed to a third party for any reason. 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. Here at, we are committed to protecting your privacy. Wireless power transfer wpt technology for semiconductor wafer fab young jae jang, phd min seok lee jin hyeok park industrial and systems engineering kaist. The advantage to the kaistolev system is that the rechargeable bus battery is smaller than. 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. 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.
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. It is designed with focus on industrial feasibility and cost reduction. 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. 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. Process transmitters isolate, filter amplify, and convert sensor signals to 420ma current or 010v voltage signals for interfacing with controllers and other instrumentation. Kaist rolling out dynamic wireless charging in buses in south korea. Suvs 17 20 83 waseda advanced electric bus 10 30 92 witricity with mit 18 3. 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. How to design multikw converters for electric vehicles. 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.
Result total cost olev outperforms bev and ice in operational costs. In this paper, three case studies involving large, highly innovative systems are presented to demonstrate the power of rational design and system development. Studies for applying wireless inductive power technology to vehicle system have been being made. Free online luminance converter converts between 19 units of luminance, including candelasquare meter, candelasquare centimeter, candelasquare foot, candelasquare inch, etc. 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. The olev was recently selected as one of the worlds. Back to news overview 10 years of electric buses with ipt charge. We are looking forward to welcoming you at the 2010 international forum on electric vehicle on june 17. Kaist constructed electric buses powered by an online electric vehicle olev system.
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. Buck converter, mosfet, mobile charging system, mppt technique,pv system. Korea debuts worlds first wirelessly charged vehicle. Overview of wireless charging technologies for electric. Kaist formally the korea advanced institute of science and technology is a national research university located in daedeok innopolis, daejeon, south korea.
The second model is the open environment model in which the olev based system operates in normal traf. 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. 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. Select multiple pdf files and merge them in seconds. Each day buses log thousands of kilometers following routes on the streets of cities and towns around the globe. Two kaist professors received the award, respectively. Analysis and modeling of wireless battery charger using pcb.
Kaist introduces online electric vehicle with inductive. Introduction of a novel application in on line electric vehicle. Cho chun shik graduate school of green transportation. A significant body of literature has been published specifically on the technical. Presets use the presets to convert your videos into a format suitable for your multimedia devices such as iphone, ipod, ipad, android, ps3, psp. Kaist was established by the korean government in 1971 as the nations first researchoriented science and engineering institution.
The buck converters main purpose is to lower the dc link voltage. Suh organizing committee chair of ifev2011 vice president, kaist, korea opening remark professor dongho cho. Opening ceremony for the pilot olev bus service 14. The on line electric vehicle system from kaist wirelessly charges. In the gen 2 olev, the current in the primary coil was doubled to create a stronger magnetic field.
Initial energy logistics cost analysis for stationary. Line electric vehicle olev at kaist olev is the official name for the kaist wireless. Kaist olev dynamic charging ev roadway charging ev move. Yes of course it is better to think in terms of power loss. Typically the motor used in the phase converter is larger than the loads it is supplying.
Slide 4 p1 standard charging for evs use a charging power of 3. The buck converter, in addition to the boost converter, makes up the part of the bidirectional converter. 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. Seungyoung ahn associate professor cho chun shik graduate school of green transportation kaist hev tcp task 26 workshop, versailles, france. An example for this technology was tested by korea advanced institute of science and technology kaist. Kaists wireless online electric vehicle, olev, runs inner city roads. The power converter takes electricity from the grid with the typical. The korea advanced institute of science and technology kaist is trialing a.
Online electric vehicle olev was developed to overcome the limitations of the current generation of evs. Pdf to office conversion is fast and almost 100% accurate. South korea rolled out the rechargeable carpet for tuesdays debut of the worlds first wirelessly charged online electric vehicle olev. Kaist launches first roadcharged olev electric buses in. 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. Demonstration of wirelesscharging technology for 1mw rapidtransit railways. A unified pi voltage controller is used for controlling the switching pulses for each mosfet switches. Using roads as charging stations for electric vehicles. 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. The department of chemistry at kaist guarantees a competitive startup package appropriate for the needs of the subdiscipline. Stochastic systems modeling for wireless charging electric.