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2016 IEEE Wireless Power Transfer Conference (WPTC)最新文献

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One-kilowatt capacitive Power Transfer via wheels of a compact Electric Vehicle 紧凑型电动车车轮的一千瓦电容功率传输
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498795
N. Sakai, Daiki Itokazu, Yoshiki Suzuki, S. Sakihara, T. Ohira
{"title":"One-kilowatt capacitive Power Transfer via wheels of a compact Electric Vehicle","authors":"N. Sakai, Daiki Itokazu, Yoshiki Suzuki, S. Sakihara, T. Ohira","doi":"10.1109/WPT.2016.7498795","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498795","url":null,"abstract":"This paper demonstrates 1 kW power transfer to an Electric Vehicle on Electrified Roadway prototype. To gain a sufficient efficiency to drive the motor onboard, we create a high-kQ capacitive coupling scheme of Via-Wheel Power Transfer. To enhance kQ, newly developed wheel uprights play the pivotal role in effective electrical insulation of the wheels from the vehicle frame. We also develop 1 kW impedance matching circuits based on the simultaneous two-port conjugate matching theory. As a result, the measured power transfer efficiency exceeds 80 %. The driving wheels successfully ran at a speed of up to 10 km/h on roller stands.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128666869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 29
Measurement accuracy verification for real-time power and impedance sensor for wireless power transfer systems 无线电力传输系统实时功率和阻抗传感器的测量精度验证
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498859
Toshi Minami, Ryohei Tanaka
{"title":"Measurement accuracy verification for real-time power and impedance sensor for wireless power transfer systems","authors":"Toshi Minami, Ryohei Tanaka","doi":"10.1109/WPT.2016.7498859","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498859","url":null,"abstract":"We, DAIHEN Corporation, have developed a real-time power and impedance sensor that enables real-time measurement of transmitted power and coil impedance in a kW class wireless power transfer during practical power transfer. Normally, accurate power measurement is assured only for characteristic impedance in which the reflected power is zero. However, the sensor we developed enables highly accurate measurement of power and load impedance at low impedance in practical applications besides characteristic impedance. This paper describes the calibration reference device and calibration method for highly accurate measurement, and measurement accuracy verification results.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129002541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Increasing wireless powered systems efficiency by combining WPT and Electromagnetic Energy Harvesting 通过结合WPT和电磁能量收集来提高无线供电系统的效率
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498836
D. Belo, A. Georgiadis, N. Carvalho
{"title":"Increasing wireless powered systems efficiency by combining WPT and Electromagnetic Energy Harvesting","authors":"D. Belo, A. Georgiadis, N. Carvalho","doi":"10.1109/WPT.2016.7498836","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498836","url":null,"abstract":"This paper proposes and discusses a multiband RF-to-DC converter approach that is simultaneous fed from electromagnetic energy that is available in the ambient, at different frequencies bands, and a dedicated wireless power transmission link. The work uses narrow band matching allowing easy high efficiency conversion on its main power source, which is the WPT link. Its performance is evaluated showing an experimental peak efficiency over 40% for all frequency bands with central frequencies at 791, 1570 and 2340 MHz (with 35% efficiency bandwidth of 30, 60 and 40 MHz, respectively), when fed with a -10 dBm CW signal. Moreover, it is shown that the additional electromagnetic energy harvested will boost the efficiency of the wireless power transmission link alone from 41% up to 48%, when a collectable ambient energy of 10 μWatts is available.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130353138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
High frequency capacitive coupling wireless power transfer using glass dielectric layers 利用玻璃介电层的高频电容耦合无线电力传输
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498857
K. Yi
{"title":"High frequency capacitive coupling wireless power transfer using glass dielectric layers","authors":"K. Yi","doi":"10.1109/WPT.2016.7498857","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498857","url":null,"abstract":"Wireless power transfer (WPT) technologies are magnetic and capacitive coupling methods, typically. The capacitive coupling WPT has many advantages such as simple structure, low electromagnetic interference and transferring with metal barrier. However, it is hard to reduce the impedance of coupling capacitor for sufficient received output voltage in the capacitive coupling WPT. Therefore, in this paper, 6.78MHz high frequency operation and glass dielectric layers can make an impedance of the coupling capacitance small and it is possible to transfer power easily. In addition, less switching loss can be obtained for high efficiency and low electromagnetic interference (EMI) noise with the LLC resonant tank. It results in high efficiency and sufficient output power. Features of the proposed converter are verified with a 4.2W prototype for charging a mobile device.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122574290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Evaluation of a fractal loop for wireless power transmission 无线电力传输分形环路的评估
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498810
Hiroki Ishikawa, Y. Kuwahara
{"title":"Evaluation of a fractal loop for wireless power transmission","authors":"Hiroki Ishikawa, Y. Kuwahara","doi":"10.1109/WPT.2016.7498810","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498810","url":null,"abstract":"Magnetic resonance based wireless power transmission using a fractal loop with a three-dimensional structure is evaluated by simulation and experiment. Using a fractal shape optimized with a genetic algorithm, we develop a wireless power transmitting system that can tolerate lateral positioning deviation with a fixed matching circuit.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124056364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Wireless power transmission for a traveling mobility scooter 一种移动滑板车的无线电力传输
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498811
Yuuji Sakayanagi, S. Togawa, Kenta Konagaya, Y. Kuwahara
{"title":"Wireless power transmission for a traveling mobility scooter","authors":"Yuuji Sakayanagi, S. Togawa, Kenta Konagaya, Y. Kuwahara","doi":"10.1109/WPT.2016.7498811","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498811","url":null,"abstract":"A wireless power transmitting system for a traveling mobility scooter based on magnetic resonance has been developed. In this paper, an overview of the system will be presented. Large square coils are set up on the road surface where a mobility scooter with a small coil and no battery is traveling. The power source is a Class E amplifier operating at 13.56MHz with an output power of 150W. Power is selectively supplied to the coil upon which the vehicle is passing at the moment; vehicle position is detected by ultrasonic sensors. A system to automatically control the transmitting output power was developed, because it is necessary to supply a constant voltage to the scooter. The overall power efficiency when the power receiving coil is inside the area delimited by the transmitting coil is 47%.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"181 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115824465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Technologies for wireless charging in microwave cavity box using GaN Schottky barrier diode GaN肖特基势垒二极管微波腔箱无线充电技术
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498845
Y. Ohno, H. Itoh, Ryota Fujihara, J. Ao
{"title":"Technologies for wireless charging in microwave cavity box using GaN Schottky barrier diode","authors":"Y. Ohno, H. Itoh, Ryota Fujihara, J. Ao","doi":"10.1109/WPT.2016.7498845","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498845","url":null,"abstract":"Technologies for microwave power transmission to small mobile equipment at 5.8 GHz are presented, including GaN Schottky barrier diode (SBD) for efficient and high power RF/DC conversion, rectenna circuits with voltage doubler pair to reduce signal reflection, and frequency modulation to control efficient charging condition in a microwave cavity box.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126815043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Short-range 4×4 MIMO Wireless Communication and Power Transfer system 短距离4×4 MIMO无线通信和电力传输系统
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498863
Tatsuro Kuwahara, K. Hamano, R. Tanaka, S. Yoshida, K. Nishikawa, T. Seki, A. Kawasaki
{"title":"Short-range 4×4 MIMO Wireless Communication and Power Transfer system","authors":"Tatsuro Kuwahara, K. Hamano, R. Tanaka, S. Yoshida, K. Nishikawa, T. Seki, A. Kawasaki","doi":"10.1109/WPT.2016.7498863","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498863","url":null,"abstract":"This paper investigated coexistence possibility of high efficiency Wireless Power Transfer (WPT) system and high-speed communication system in Short-range Wireless Communication and Power Transfer (WiCoPT) system. To realize both high power transfer efficiency and high data rate, this paper proposes the WiCoPT system, which is supported by the Short-Range Multiple Input and Multiple Output (SR-MIMO) transfer technique. Relationship between the antenna element spacing and the transmission performance was analyzed to clarify the maximum performances of the power transfer efficiency and the data rate. The paper analyzed and demonstrated a 4×4 MIMO WiCoPT system. The numerical analysis indicates that the antenna element spacing to maximize the power transfer efficiency is different from that to realize the highest channel capacity. In addition, the analysis clarifies there are two suitable antenna element spacing for high power transfer operation. Therefore, our proposing system chose the antenna element spacing to realize the second peak for the high-level power transfer efficiency simultaneously. The 4×4 MIMO WiCoPT system achieved a channel capacity of 45 bit/s/Hz and a power transfer efficiency of 64.8 %.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130833609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Design and optimization of air core spiral resonators for magnetic coupling wireless power transfer on seawater 海水磁耦合无线输电空芯螺旋谐振器的设计与优化
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498849
H. M. Santos, M. R. Pereira, Luís M. Pessoa, Henrique M. Salgado
{"title":"Design and optimization of air core spiral resonators for magnetic coupling wireless power transfer on seawater","authors":"H. M. Santos, M. R. Pereira, Luís M. Pessoa, Henrique M. Salgado","doi":"10.1109/WPT.2016.7498849","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498849","url":null,"abstract":"This paper focuses on the design of high quality spiral resonators for maximising wireless power transfer efficiency between an AUV and an underwater docking station. By using 3D electromagnetic simulations and numerical analysis, the relevant parameters for quality factor computation are extracted. The impact of different variables on a spiral resonator's quality factor is assessed, allowing to conclude on the optimum design parameters to achieve optimum efficiency on the power transmission through magnetic coupling. This work will contribute to enable the development future AUV wireless charging systems, which will allow for an improvement of AUV's range and endurance while ensuring lower operational costs.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134094678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Comparative strategies of exploiting the 3rd harmonic signal energy in passive RFID tags 无源RFID标签中三次谐波信号能量开发的比较策略
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498839
D. Allane, G. A. Vera, Y. Duroc, R. Touhami, S. Tedjini
{"title":"Comparative strategies of exploiting the 3rd harmonic signal energy in passive RFID tags","authors":"D. Allane, G. A. Vera, Y. Duroc, R. Touhami, S. Tedjini","doi":"10.1109/WPT.2016.7498839","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498839","url":null,"abstract":"In this paper, the harmonic signals coming from the UHF RFID chips are exploited in two different ways. In the first application, the 3rd harmonic signal is combined with an external signal from a Wi-Fi source (at 2.45 GHz) in order to improve the power conversion efficiency of the energy harvester associated to the tag. In the second method, the 3rd harmonic signal is used alone as an energy source to supply a commercial temperature sensor associated with the tag.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"35 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133425777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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