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2015 IEEE Wireless Power Transfer Conference (WPTC)最新文献

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The application of electromagnetic surface waves to wireless energy transfer 电磁表面波在无线能量传输中的应用
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7139133
G. Peterson
{"title":"The application of electromagnetic surface waves to wireless energy transfer","authors":"G. Peterson","doi":"10.1109/WPT.2015.7139133","DOIUrl":"https://doi.org/10.1109/WPT.2015.7139133","url":null,"abstract":"The use of guided electromagnetic waves for the wireless transmission of electrical energy has long been the subject of scientific investigation. While attention is presently focused on the near-field inductive and far-field radiative techniques there is ongoing interest, as well, in the possibility of using a terrestrial transmission line mode for wireless power transfer. A history of surface wave theory development is provided, along with comments about the basic functionality of Tesla's original designs.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122487222","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: 5
Experiments on driving a low-power DC motor by microwave power transfer 微波功率传输驱动小功率直流电机的实验研究
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140155
Yong Huang, T. Mitani, T. Ishikawa, N. Shinohara
{"title":"Experiments on driving a low-power DC motor by microwave power transfer","authors":"Yong Huang, T. Mitani, T. Ishikawa, N. Shinohara","doi":"10.1109/WPT.2015.7140155","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140155","url":null,"abstract":"The input load characteristics of a DC motor vary with input powers. The conversion efficiency of a rectifying circuit is strongly affected by the connected load. Therefore, to efficiently drive a DC motor using microwave power transfer (MPT), it needs to improve the efficiency-load characteristics of the rectifying circuit. We design a compact power-receiving device which mounts antennas, rectifiers and a buck-boost converter on a multilayer substrate. The buck-boost converter exhibits constant input resistance characteristics independent of the load resistance. Experiments are carried out on driving a low-power DC motor using MPT. High transfer efficiency is achieved between the receiving antenna array and the input of the DC motor. In particular, the measured overall efficiency of the power-receiving device is over 62 % as the power density is changing from 0.25 to 1 mW/cm2.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120966391","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
Underwater wireless power transfer for maritime applications 用于海上应用的水下无线电力传输
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7139142
V. Bana, M. Kerber, G. Anderson, J. Rockway, A. Phipps
{"title":"Underwater wireless power transfer for maritime applications","authors":"V. Bana, M. Kerber, G. Anderson, J. Rockway, A. Phipps","doi":"10.1109/WPT.2015.7139142","DOIUrl":"https://doi.org/10.1109/WPT.2015.7139142","url":null,"abstract":"This paper presents the development and implementation of an inductive, underwater wireless power transfer system for use with unmanned underwater vehicles (UUVs). Specifically, the design and fabrication of power transfer coils and power electronics is provided for a system capable of providing 75W to a load. At small standoff distances (<;2 inches) and frequencies below 300kHz, it is shown that there is little difference between inductive power transfer in air and seawater. Measured data shows that at power levels of 75W, the system efficiency from the transmitter to a rectifier and resistive load is above 85%.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126736200","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: 38
Capacitive coupling through a hydrodynamic journal bearing to power rotating electrical loads without contact 通过流体动力滑动轴承的电容耦合，为旋转的无接触电负载提供动力
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140181
S. Hagen, Ryan Knippel, J. Dai, D. Ludois
{"title":"Capacitive coupling through a hydrodynamic journal bearing to power rotating electrical loads without contact","authors":"S. Hagen, Ryan Knippel, J. Dai, D. Ludois","doi":"10.1109/WPT.2015.7140181","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140181","url":null,"abstract":"A capacitive power coupler has been devised using a hydrodynamic journal bearing assembly that facilitates sufficient coupling for kilowatt-scale non-contact power transfer to a rotating load. The capacitive coupler, combined with associated driving circuitry, is an efficient low maintenance solution for powering a variety of rotating or pivoting electrical loads in machines and automation. A hydrodynamic journal bearing capacitor assembly utilizing an ultra-thin cushion of lubricant as dielectric between concentric capacitor electrodes is presented. Hydrodynamic operation ensures high coupling capacitance, ease of manufacturability and eliminates brush and slip ring maintenance. The system's small size, weight, and simplicity are competitive with contemporary inductive wireless power transfer methods in this small gap application. Experimental results for a ~5nF prototype coupler operating at 840 kHz are presented.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128942722","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: 18
Leakage emulator intended for electromagnetic field leaked from wireless power transfer system 用于无线电力传输系统电磁场泄漏的泄漏仿真器
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140126
Yoshihiro Kanasaki, Tatsunori Yui, H. Uno, Kazuhiko Ikeda, Y. Saito
{"title":"Leakage emulator intended for electromagnetic field leaked from wireless power transfer system","authors":"Yoshihiro Kanasaki, Tatsunori Yui, H. Uno, Kazuhiko Ikeda, Y. Saito","doi":"10.1109/WPT.2015.7140126","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140126","url":null,"abstract":"The wireless power transfer (WPT) system has been actively developed in recent years, and the interference to the other devices that is caused by the electromagnetic field leaked from the WPT system has also been discussed. In this paper, we propose the WPT leakage emulator that is extremely usable to quantitatively evaluate the interference and the leaked electromagnetic field distribution. The WPT leakage emulator that is composed of only a primary coil can easily reproduce the electromagnetic field leaked from the various types of WPT system by adjusting the coil configuration, input power, and the operating frequency appropriately. The WPT leakage emulator that operates at 85 kHz and 6.78 MHz is fabricated, and the fundamental operation and its operating mechanism are demonstrated in both the measurement and the simulation.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115283112","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
Misalignment-compensated resonant power transfer system 失调补偿谐振功率传输系统
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7139135
M. Suma, A. Bohori, R. Somakumar, A. Raghunathan
{"title":"Misalignment-compensated resonant power transfer system","authors":"M. Suma, A. Bohori, R. Somakumar, A. Raghunathan","doi":"10.1109/WPT.2015.7139135","DOIUrl":"https://doi.org/10.1109/WPT.2015.7139135","url":null,"abstract":"Electric Vehicle (EV) technology is an ideal candidate for environment-friendly and pollution-free transportation. Wireless chargers, where EV batteries can simply be charged by parking the vehicle on a charging pad, provide customers with convenience and electrical safety. In addition, cordless chargers also bring new charging strategies such as “opportunistic” and “charge-on-the-go”. Cordless EV charging technology, based on the principle of resonance (inductive or coupled magnetic) is a variant of air core transformer. In this work, we propose a novel system based on magnetic resonance principle that would passively compensate for any misalignment between transmitter and receiver coil assemblies thereby maintaining high efficiency. The proposed system is prototyped and the performance is validated against an equivalent circuit model.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126947310","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
A coil misalignment compensation concept for wireless power transfer links in biomedical implants 生物医学植入物无线电力传输链路线圈错位补偿概念
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140152
Fanpeng Kong, Yi Huang, L. Najafizadeh
{"title":"A coil misalignment compensation concept for wireless power transfer links in biomedical implants","authors":"Fanpeng Kong, Yi Huang, L. Najafizadeh","doi":"10.1109/WPT.2015.7140152","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140152","url":null,"abstract":"Inductively coupled wireless links are attractive solutions for wireless powering of biomedical implants. One of the issues that negatively impacts the performance of wireless power transfer (WPT) links in implants, is the misalignment between the primary and secondary coils, which could naturally occur as a result of body movement or changes in the biological environment. An immediate effect of coil misalignment is the reduction in the power delivered to the load. In this paper, we present a design concept that could be implemented on the transmitter side, to mitigate this effect while keeping the driver to work at its optimum operating condition. Specifically, we will demonstrate, analytically and through simulations, that tuning the shunt capacitor and the supply voltage at the transmitter side could be a promising approach for compensating the performance degradation induced by coil misalignment in WPT links.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132951516","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: 13
A high-efficiency Class-E power amplifier with wide-range load in WPT systems WPT系统中一种高效、宽负载的e类功率放大器
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140140
Shuangke Liu, Ming Liu, Minfan Fu, Chengbin Ma, Xinen Zhu
{"title":"A high-efficiency Class-E power amplifier with wide-range load in WPT systems","authors":"Shuangke Liu, Ming Liu, Minfan Fu, Chengbin Ma, Xinen Zhu","doi":"10.1109/WPT.2015.7140140","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140140","url":null,"abstract":"A high-efficiency power amplifier (PA) is important in a Megahertz wireless power transfer (WPT) system. It is attractive to apply the Class-E PA for its simple structure and high efficiency. However, the conventional design for Class-E PA can only ensure a high efficiency for a fixed load. It is necessary to develop a high-efficiency Class-E PA for a wide-range load in WPT systems. A novel design method for Class-E PA is proposed to achieve this objective in this paper. The PA achieves high efficiency, above 80%, for a load ranging from 10 to 100 Ω at 6.78 MHz in the experiment.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133211530","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: 21
A novel cubic transmitter for multi-directional wireless power transfer 一种用于多向无线电力传输的新型立方发射机
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140178
N. Ha-Van, C. Seo
{"title":"A novel cubic transmitter for multi-directional wireless power transfer","authors":"N. Ha-Van, C. Seo","doi":"10.1109/WPT.2015.7140178","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140178","url":null,"abstract":"An effectively designed multi-directional wireless charging system is a highly attractive and economic strategy for simultaneously charging a multiple of devices. An open-ended coupling system with a novel cubic transmitter is presented to arise in receiver applications and achieve a relative high efficiency. The cubic transmitter is driven by a single power source with the same ac current. The energy delivery is transmitted to the receivers through the magnetic resonant coupling in the medium range wireless power transfer mode. The efficiency of the proposed multi-directional wireless power transfer system is almost higher than 50%.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"58 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133391289","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: 8
Practical applications of radiative wireless power transfer 辐射无线电力传输的实际应用
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140131
H. Pflug, H. Visser, S. Keyrouz
{"title":"Practical applications of radiative wireless power transfer","authors":"H. Pflug, H. Visser, S. Keyrouz","doi":"10.1109/WPT.2015.7140131","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140131","url":null,"abstract":"For practical use of radiative wireless power transfer (WPT), it is necessary to design a system which is able to supply circuits with a dynamic loading characteristic. In this paper we present a practical way to obtain efficiency and dc output power characteristics of a WPT system. An Avago HSMS-2852 Schottky diode pair is used to rectify the RF power. The diode pair is matched to a 50 Ω input impedance and loaded with an Texas Instruments TI BQ22570 Power Management Circuit. The system is able to deliver 20 mW dc output power during 10 ms with a period of 8.7 s at an RF input power level of -10 dBm. This corresponds to a distance in excess of 9 m having a 6 dBi receiving antenna and using a 3 W EIRP transmitter at 868 MHz.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130240790","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
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