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2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)最新文献

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Research on quality factor of the coils in wireless power transfer system based on magnetic coupling resonance 基于磁耦合共振的无线电力传输系统线圈品质因数研究
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959378
Liu Jinliang, Deng Qijun, Hu Wenshan, Zhou Hong
{"title":"Research on quality factor of the coils in wireless power transfer system based on magnetic coupling resonance","authors":"Liu Jinliang, Deng Qijun, Hu Wenshan, Zhou Hong","doi":"10.1109/WOW.2017.7959378","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959378","url":null,"abstract":"The improvement of the coil quality factor results to a higher efficiency for wireless power transfer(WPT) system[1–3]. Additionally, adding a suitable magnetic core into the coil can effectively enhance the mutual inductance and improve the efficiency of WPT system[4–7]. The high frequency current is un-uniform in the wire due to the external magnetic field. As a result, the conductive area of the wire is much smaller than its cross-section, and the excess resistance, namely the frequency-dependent resistance, is induced. The frequency-dependent resistance is proportional to the squared field the wire exposed to[8–13]. Two simple models are built up for 3D Maxwell simulation to calculate the magnetic field. Maximum quality factor of coils and corresponding optimal operation frequency is derivate based on the analyzing of the field and resistance. Quality factor optimization by using the analytic method has been carried out and experiment for verification is done and the conclusions have been got.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114955015","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
Overview of coil designs for wireless charging of electric vehicle 电动汽车无线充电线圈设计综述
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959389
Chunhua Liu, C. Jiang, C. Qiu
{"title":"Overview of coil designs for wireless charging of electric vehicle","authors":"Chunhua Liu, C. Jiang, C. Qiu","doi":"10.1109/WOW.2017.7959389","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959389","url":null,"abstract":"With the electric vehicle (EV) market growing fast, the emerging wireless EV charging technology has attracted more and more attention in recent years. As a key part of wireless charging system for EVs, the coil design is indispensable for improving the system performance. This paper presents an overview of coil designs for wireless charging of EVs, which addresses their basic structures, operating principles, and distinct features. The basic topologies including the circular rectangular pad (CRP), circular pad (CP), homogeneous pad (HP), double-D pad (DDP), double-D quadrature pad (DdQp), and bipolar pad (BP), are introduced and discussed. Also, the corresponding advantages and limitations of each topology are analyzed and discussed. Besides, some key issues of practical design problems are compared in the coil topologies. Finally, the human exposure issues are revealed.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121124284","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: 63
A single-wire capacitive power transfer system with large coupling alignment tolerance 具有大耦合对中公差的单线电容式功率传输系统
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959372
L. Zou, A. Hu, Yugang Su
{"title":"A single-wire capacitive power transfer system with large coupling alignment tolerance","authors":"L. Zou, A. Hu, Yugang Su","doi":"10.1109/WOW.2017.7959372","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959372","url":null,"abstract":"This paper introduces a new Wireless Power Transfer (WPT) system based on single pair of electric field coupling without a current return path. Such a single-contact Capacitive Power Transfer (CPT) system helps to enhance the coupling tolerance between the coupled plates. A class E converter is designed to drive an LCLC resonant circuit to boost the voltage at the primary side of the coupling plate, while a CLCL resonant circuit is used to boost the output current to the load. A practical prototype is built, and it has demonstrated that 3.8 W of power can be transferred across a single pair of copper coupling plates (100mm ×100mm) at full alignment. And it has found that the single-wire CPT system has a large coupling tolerance against both lateral and angular misalignments between the coupled plates.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128703799","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: 23
A novel control strategy for wireless charging in electric vehicle based on class E amplifier 一种基于E类放大器的电动汽车无线充电控制策略
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959365
L. Ji, Yuyu Song, Lifang Wang, Chenglin Liao
{"title":"A novel control strategy for wireless charging in electric vehicle based on class E amplifier","authors":"L. Ji, Yuyu Song, Lifang Wang, Chenglin Liao","doi":"10.1109/WOW.2017.7959365","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959365","url":null,"abstract":"Class E amplifier is a high frequency power supply for the magnetic resonance wireless power transmission (WPT) system for electric vehicles, and its efficiency is an important index to evaluate the performance of the system. In view of the efficiency and voltage stress in the switch device of class E amplifier are verified dramatically with the load change, this paper proposed an active control strategy to realize ZVS condition of class E amplifier by capacitor and inductor arrays, load estimation in primary side, and an optimization algorithm together. A set of experiment of 1000W and efficiency of inverter part is over 95% in an air gap of 20 centimeter was carried out to verify the effectiveness of the proposed strategy.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117200289","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: 0
Efficiency optimization and power distribution design of a megahertz multi-receiver wireless power transfer system 一种兆赫多接收机无线电力传输系统的效率优化与功率分配设计
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959364
Jibin Song, Ming Liu, Chengbin Ma
{"title":"Efficiency optimization and power distribution design of a megahertz multi-receiver wireless power transfer system","authors":"Jibin Song, Ming Liu, Chengbin Ma","doi":"10.1109/WOW.2017.7959364","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959364","url":null,"abstract":"It is attractive to achieve multi-receiver wireless power transfer (WPT) through a megahertz operating frequency. However, the power distribution among receivers can be a difficult task due to the different load characteristics, i.e., power requirement, receiver size, and coupling coefficient. This paper proposes a general design methodology of efficiency optimization and power distribution of a MHz multi-receiver WPT System. A Class E rectifier is introduced in the MHz multi-receiver WPT system to provide the design freedom for the power distribution and efficiency optimization. Based on the fundamental analysis and analytical derivations of the Class E rectifier and coupling coils, a numerical optimization problem is formulated to achieve the power distribution and maximized efficiency simultaneously. Finally, an example 6.78-MHz three-receiver WPT system is built to verify the proposed design methodology. The experimental results show that the proposed design can meet the power requirement of loads within 5% error and achieve system efficiency of 90% at a power level of 25W.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126794095","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
Parameter optimization method for the wireless charging system of mowing robot 割草机器人无线充电系统的参数优化方法
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959375
Tang Chunsen, Deng Pengqi, W. Zhihui, Huang Yongcan, Dai Lin
{"title":"Parameter optimization method for the wireless charging system of mowing robot","authors":"Tang Chunsen, Deng Pengqi, W. Zhihui, Huang Yongcan, Dai Lin","doi":"10.1109/WOW.2017.7959375","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959375","url":null,"abstract":"This paper proposed a parameter optimization design method for the wireless charging system of mowing robot. The circuit topology for wireless charging is given according to the demand analysis of charging device. The boundary constraints of the system parameters are obtained by analyzing the characteristics of the wireless charging system and its performance requirements. Then the main parameters of the system are designed by seeking the optimal solution of the boundary constraints using a genetic algorithm. The feasibility of this design method is verified by simulation results.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125712206","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: 4
A hybrid wireless charging system with DDQ pads for dynamic charging of EVs 一种用于电动汽车动态充电的DDQ板混合无线充电系统
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959397
Lei Zhao, S. Ruddell, D. Thrimawithana, U. Madawala, P. Hu
{"title":"A hybrid wireless charging system with DDQ pads for dynamic charging of EVs","authors":"Lei Zhao, S. Ruddell, D. Thrimawithana, U. Madawala, P. Hu","doi":"10.1109/WOW.2017.7959397","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959397","url":null,"abstract":"Wireless power transfer (WPT) systems are suitable for applications such as integration of Electric Vehicles (EV) with the utility grids. However, physical misalignments between the magnetic couplers are unavoidable and can introduce variations in self-, leakage- and mutual-inductances, which invariably detune the compensation networks employed by the transmitter and receiver of a wireless power transfer system. A hybrid BD-IPT system, which combines a parallel tuned LCL and a series tuned CL networks to provide a constant power transfer over a wide range of spatial displacements is proposed. A pair of DDQ pads with hybrid tuning is utilized to improve the power transfer to EVs' in a dynamic charging application. Mathematical and simulation models are developed to investigate the behavior of the proposed system under practical operating conditions. Both mathematical and simulation results are presented to illustrate that the proposed system can maintain a relatively constant power to an EV in a dynamic charging system.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124859109","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: 20
Primary-side control method in two-transmitter inductive wireless power transfer systems for dynamic wireless charging applications 动态无线充电用双发射机感应无线电力传输系统的主侧控制方法
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959366
Chao Wang, Chunbo Zhu, Kai Song, Guo Wei, Shuai Dong, Ren-gui Lu
{"title":"Primary-side control method in two-transmitter inductive wireless power transfer systems for dynamic wireless charging applications","authors":"Chao Wang, Chunbo Zhu, Kai Song, Guo Wei, Shuai Dong, Ren-gui Lu","doi":"10.1109/WOW.2017.7959366","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959366","url":null,"abstract":"This paper present a method to estimate the output current or voltage in the primary-side of a two-transmitter inductive wireless power transfer system, which has been introduced to achieve the continuity of power transfer, without any direct measurement on the receiver coil and load conditions. The proposal can ensure the continuity and stability of charging in dynamic wireless power transfer system while receiver moving or stopping on track within lateral offset tolerance. Both cross coupling analysis and Primary-side estimation of parameters for the serial and parallel compensated receiver are presented. Simulated results are presented to validate the viability of the proposed method.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"50 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114586015","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: 25
LQG control of capacitive power transfer system 电容式电力传输系统的LQG控制
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959379
Kai Lu, S. Nguang
{"title":"LQG control of capacitive power transfer system","authors":"Kai Lu, S. Nguang","doi":"10.1109/WOW.2017.7959379","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959379","url":null,"abstract":"This paper presents the design and simulation of an auto-tuning capacitive power transfer (CPT) system based on Class-E converter approach. The reason of selecting Class-E converter is due to the remarkably high efficiency that it can achieve. However, the load's variation affects the output voltage of Class-E converter significantly and increases the switching loss of the system. To regulate the output voltage, we first obtain a state space model of the system by the first harmonic analysis. Then, based on the model, a linear quadratic Gaussian (LQG) controller is designed. Simulation is presented at the end to verify the effectiveness of the controller design.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115501743","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
Data transmission through energy coil of wireless power transfer system 通过无线电力传输系统的能量线圈传输数据
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI: 10.1109/WOW.2017.7959373
Hongchang Zheng, Zhihui Wang, Yachao Li, Pengqi Deng
{"title":"Data transmission through energy coil of wireless power transfer system","authors":"Hongchang Zheng, Zhihui Wang, Yachao Li, Pengqi Deng","doi":"10.1109/WOW.2017.7959373","DOIUrl":"https://doi.org/10.1109/WOW.2017.7959373","url":null,"abstract":"The data communication always needs to be implemented in application of the Wireless Power Transfer (WPT) technology. However, there are also some problems need to be dealt with in practical applications. For example, the interference between power transfer and communication is serious, when the power and data are transmitted through the same coupling coil. A simple design is presented to implement bidirectional communication through the power transmission channel in this paper. The main idea is that the high-frequency signal can be sent via a single antenna. The power is transferred in the frequency range of 20 KHz to 100 KHz, the data is transferred by employing carrier at around 10MHz. The interference between the two function is analyzed. In order to demonstrate the effectiveness of the proposal, a hardware experiment prototype platform is built up in the project. In the experiment, the transmission gap distance is 10mm, the power transfer is reached 30W, and the data transmission rate is capable of up to 80 Kbps.","PeriodicalId":242505,"journal":{"name":"2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125682348","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: 10
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