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

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Three-phase resonant inverter for wireless power transfer 用于无线电力传输的三相谐振逆变器
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140144
Mariusz Bojarski, Erdem Asa, D. Czarkowski
{"title":"Three-phase resonant inverter for wireless power transfer","authors":"Mariusz Bojarski, Erdem Asa, D. Czarkowski","doi":"10.1109/WPT.2015.7140144","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140144","url":null,"abstract":"A three-phase resonant inverter for wireless power transfer applications is presented in this paper. A phase-frequency hybrid control strategy is proposed as an alternative to the traditional frequency and phase control methods. An experimental prototype of the three-phase resonant inverter was built and connected with wireless power link and rectifier. The hybrid phase-frequency control strategy was implemented and compared with frequency control at the output power up to 10 kW. The experimental results show that the proposed inverter can operate within the desired frequency range with high efficiency while regulating output from zero to maximum.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"127 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":"134159149","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
Magnetic near-field focusing and optimal wireless power transfer 磁场近场聚焦和最佳无线电力传输
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140128
Hans-Dieter Lang, A. Ludwig, C. Sarris
{"title":"Magnetic near-field focusing and optimal wireless power transfer","authors":"Hans-Dieter Lang, A. Ludwig, C. Sarris","doi":"10.1109/WPT.2015.7140128","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140128","url":null,"abstract":"The relation between subwavelength focusing near-field arrays and arrays designed to maximize power transfer efficiency is investigated. The intuitive expectation that magnetic field focusing around the receiver may maximize power transfer efficiency is not confirmed, when the fields of capacitively loaded loop arrays, designed for optimal power transfer efficiency, are analyzed. The significant role of loss is outlined and interesting aspects of the underlying physics are illustrated.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"20 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":"130962037","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
Experimental characterization methods for the electromagnetic emission of inductive wireless power circuits 感应无线电源电路电磁发射的实验表征方法
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140127
B. Minnaert, N. Stevens, D. Pissoort
{"title":"Experimental characterization methods for the electromagnetic emission of inductive wireless power circuits","authors":"B. Minnaert, N. Stevens, D. Pissoort","doi":"10.1109/WPT.2015.7140127","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140127","url":null,"abstract":"Manufacturing electronic devices requires accordance to the electromagnetic compatibility requirements. Taking into account the growing importance of inductive wireless power transfer at higher frequencies, it is important that one can already early in the design process characterize the emissions. In this work, we describe the experimental methods which could be used for the characterization of as well conducted as radiated electromagnetic emissions of inductive wireless power circuits. We discuss the advantages and drawbacks of these methods and compare them with each other.","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":"123152609","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
Construction of a secure wireless power transfer system for robot fish 机器鱼安全无线电力传输系统的构建
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7139143
R. Ito, Y. Sawahara, T. Ishizaki, I. Awai
{"title":"Construction of a secure wireless power transfer system for robot fish","authors":"R. Ito, Y. Sawahara, T. Ishizaki, I. Awai","doi":"10.1109/WPT.2015.7139143","DOIUrl":"https://doi.org/10.1109/WPT.2015.7139143","url":null,"abstract":"We have designed a prototype wireless power feeding system to the ornamental robot fish, considering it also as a preliminary experiment for application to the capsule endoscope. We insert a solenoidal resonator instead of the button battery in a robot fish, and send power wirelessly from the resonators which are placed above and below the aquarium. In order to mitigate the high voltage induced in the power transmitting coil due to the low coupling coefficient to the receiving resonator, the effect of operation frequency is studied, resulting in the choice of lower frequency. So as to comply with the EMC problems, electric/magnetic field distributions are measured being compared with ICNIRP recommendation. In addition, we have the real goldfish swim at the same time as the robot fish in the demo experiment for qualitative safety evidence.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"29 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":"121402828","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: 6
Efficient artificial magnetic conductor shield for wireless power 用于无线电源的高效人工磁导体屏蔽
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140124
James Lawson, D. Yates, P. Mitcheson
{"title":"Efficient artificial magnetic conductor shield for wireless power","authors":"James Lawson, D. Yates, P. Mitcheson","doi":"10.1109/WPT.2015.7140124","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140124","url":null,"abstract":"Artificial magnetic conductors (AMC) offer a solution to increasing link efficiency in inductive power transfer (IPT) while reducing magnetic fields outside the air gap. A practical design for an artificial magnetic conductor, suitable for use as a shield for inductive power transfer, is presented. The AMC makes use of a ferrite substrate and lumped capacitor loading. A model of the plane wave behaviour of the structure is compared to simulation and the performance of the AMC compared to other shielding solutions, in an IPT scenario. The plane wave behaviour is found not to provide a good prediction of the AMC behaviour in the IPT scenario. The AMC shield is found to offer the greatest link efficiency, in the IPT scenario.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"79 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120894637","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
Wireless power transfer for mobile devices with consideration of ground effect 考虑地效应的移动设备无线电力传输
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140113
V. Nguyen, Seok Hyon Kang, C. Jung
{"title":"Wireless power transfer for mobile devices with consideration of ground effect","authors":"V. Nguyen, Seok Hyon Kang, C. Jung","doi":"10.1109/WPT.2015.7140113","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140113","url":null,"abstract":"In this study, a wireless power transfer (WPT) system including three coils and working at 6.78 MHz is investigated. By employing a 2 × 3 metamaterial (MTM) array, the efficiency of the proposed WPT system is significantly enhanced. Experiments show that with the MTM array, a maximum efficiency improvement of 27 % is achieved at transfer distance of 35 cm. The impact of ground plane on the transfer efficiency is also studied. Several methods to reduce this impact are discussed and measured.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"5 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":"115122720","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
Design and simulation of printed winding inductors for inductive wireless power charging applications 用于感应无线充电的印刷绕组电感器的设计与仿真
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140119
D. Jugieu, Guillaume Vigneau, M. Cheikh, S. Kessler, R. Benbouhout, A. Takacs
{"title":"Design and simulation of printed winding inductors for inductive wireless power charging applications","authors":"D. Jugieu, Guillaume Vigneau, M. Cheikh, S. Kessler, R. Benbouhout, A. Takacs","doi":"10.1109/WPT.2015.7140119","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140119","url":null,"abstract":"Winding coils are key elements in the design and the implementation of an effective wireless power charging platform for wireless devices such as mobile phones, smart phones and tablet computers. Planar winding inductors are low-cost, ready to integrate with the electronics and fully compatible with a general printed circuit board (PCB) manufacturing process. This paper addresses the design and the simulation of the planar winding inductors in order to overcome some drawbacks of such structures concerning mainly the quality factor and the resistive/thermal losses.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"70 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":"131726071","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 novel parallel double-layer spiral coil for coupled magnetic resonance wireless power transfer 一种用于耦合磁共振无线电力传输的新型平行双层螺旋线圈
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140115
Cheng Yang, K. Tsunekawa
{"title":"A novel parallel double-layer spiral coil for coupled magnetic resonance wireless power transfer","authors":"Cheng Yang, K. Tsunekawa","doi":"10.1109/WPT.2015.7140115","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140115","url":null,"abstract":"A novel parallel double-layer spiral coil for coupled magnetic resonance wireless power transfer (WPT) is proposed in this paper. The various characteristics are investigated by using simulation and experiment. Compare to a conventional double-layer spiral coil of the same geometric size, the parallel double-layer spiral coil could improve the quality factor by about 59%, due to the lower resistance. Moreover, the power transfer efficiency characteristics are also analyzed according to the transfer distance. Experimental results demonstrate that the transfer efficiency by using parallel double-layer spiral coil could be greatly improved; these results are in good agreement with the simulation results.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"58 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":"124637506","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
Spurious electromagnetic emissions from a Magnetic Field Wireless Power Transfer system 磁场无线电力传输系统的伪电磁发射
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140123
J. Mclean, R. Sutton, K. Takizawa, Akihiro Sato, Masataka Midori, Yuki Naito
{"title":"Spurious electromagnetic emissions from a Magnetic Field Wireless Power Transfer system","authors":"J. Mclean, R. Sutton, K. Takizawa, Akihiro Sato, Masataka Midori, Yuki Naito","doi":"10.1109/WPT.2015.7140123","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140123","url":null,"abstract":"Magnetic Field Wireless Power Transfer (MF-WPT) is appropriate for high-power applications such as the charging of electric vehicle batteries. Most systems operate essentially as resonant converters with the couplers (primary and secondary windings) and matching networks absorbed into the tank circuit of a resonant converter topology. As in a well-designed resonant converter, the currents in the couplers are quasi-sinusoidal. The extraneous electromagnetic field of such a system viewed in the frequency domain naturally includes a strong contribution at the fundamental frequency. However, it also necessarily includes components due to rectifier harmonics and short-time-scale ringing both in the inverter and rectifier circuits. We examine the relationship between the primary and secondary coupler currents and the extraneous electromagnetic field. It is seen that the electromagnetic field at some distance from the system has a spectral character markedly different from that of the primary and secondary currents. This is due to the fact that the induction and radiation fields of magnetic multipoles (predominantly dipole and quadrupole) depend not only on the associated magnetic moments but also on frequency. While the static fields depend directly on moment which, in turn, depends on current magnitude, the quasi-static induction and the radiation fields depend on the product of moment and a non-zero power of frequency.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"473 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":"124768326","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
Maximum efficiency point tracking by input control for a wireless power transfer system with a switching voltage regulator 带开关电压调节器的无线电力传输系统的输入控制最大效率点跟踪
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140139
Yoshiaki Narusue, Y. Kawahara, T. Asami
{"title":"Maximum efficiency point tracking by input control for a wireless power transfer system with a switching voltage regulator","authors":"Yoshiaki Narusue, Y. Kawahara, T. Asami","doi":"10.1109/WPT.2015.7140139","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140139","url":null,"abstract":"In wireless power transfer (WPT) systems, changes in the receiver position and load resistance affect the output voltage and power efficiency. A receiver-side switching voltage regulator is useful for output voltage regulation, but it cannot be utilized with a DC-DC converter dedicated to conventional maximum efficiency point tracking (MEPT). As an MEPT method compatible with a switching voltage regulator and basically without feedback information, we propose MEPT by input control to make the switching voltage regulator undertake the role of the DC-DC converter of a conventional MEPT. To enable the proposed MEPT, we propose two additional essential technologies. One is a system design to remove the instability caused by a switching voltage regulator at the maximum efficiency point. The other is the activation timing of a switching voltage regulator to reach a stable point. Measurements using a 0-Ω power source and a K-inverter validate the proposed methods.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"24 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":"121812995","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: 15
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