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2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)最新文献

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A Systematic Design Flow for Wireless Power Transfer System 无线电力传输系统的系统设计流程
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291289
Xuanchang Zhang
{"title":"A Systematic Design Flow for Wireless Power Transfer System","authors":"Xuanchang Zhang","doi":"10.1109/WoW47795.2020.9291289","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291289","url":null,"abstract":"The design process of a wireless power transfer system can be complicated, with the considerations of the physical constraints, efficiency change over the operating coupling range, the switching frequency and the thermal reliability. This manuscript shows a systematic design flow of an inductive power transfer system based on a real-world application. A design process of a 100 W wireless charger for laptop is demonstrated, with both electromagnetic and spice circuit simulation. In order for the system to work reliably, a thermal analysis is also included to determine the dimension of a typical heat sink for this system to operate under reasonable temperature.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125791567","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
Coil Comparison and Downscaling Principles of Inductive Wireless Power Transfer Systems 感应无线电力传输系统的线圈比较与降阶原理
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291295
Yiming Zhang, Shuxin Chen, Xin Li, Zihao She, Fan Zhang, Yi Tang
{"title":"Coil Comparison and Downscaling Principles of Inductive Wireless Power Transfer Systems","authors":"Yiming Zhang, Shuxin Chen, Xin Li, Zihao She, Fan Zhang, Yi Tang","doi":"10.1109/WoW47795.2020.9291295","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291295","url":null,"abstract":"High-power wireless charging for electric vehicles (EVs) is an essential technology for the development of EVs. This paper compares four coil types: square, circular, rectangular, and bipolar, in terms of coupling coefficients, single-turn self-inductances, and maximum power capability varying with the coil width, airgap and misalignment. The coupling coefficients are only determined by the ratio of coil width and airgap over coil length and the coil type. The single-turn inductance increases linearly with the increasing coil length. For a small coil width and airgap, the bipolar coil has the largest coupling coefficient; for a large coil width and airgap, the square coil has the largest coupling coefficient. The maximum power capability of each coil is studied. High-power capability is normally unavailable in research laboratories of universities, so downscaled prototypes are implemented to verify the design. The downscaling principles for high-power wireless charging systems are investigated and discussed.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128398622","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
13.56 MHz Scalable Shielded-Capacitive Power Transfer for Electric Vehicle Wireless Charging 用于电动汽车无线充电的13.56 MHz可扩展屏蔽电容功率传输
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291299
A. Muharam, Suziana Ahmad, R. Hattori, A. Hapid
{"title":"13.56 MHz Scalable Shielded-Capacitive Power Transfer for Electric Vehicle Wireless Charging","authors":"A. Muharam, Suziana Ahmad, R. Hattori, A. Hapid","doi":"10.1109/WoW47795.2020.9291299","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291299","url":null,"abstract":"This paper proposes a scalable shielded capacitive power transfer (shielded-CPT) for mini electric vehicle (EV) wireless charging application. The design and analytical studies of the proposed shielded-CPT are introduced by using LTSpice™ simulation software. In order to obtain an accurate calculation of the impedance matching network, the capacitances appeared in the system are observed with finite element analysis (FEA) tools using ElecNet™ software from Infolytica™. With a 3-cm shield-shield gap, 3.46 pF of coupling capacitance and 10.9 pF of shield coupling capacitance are acquired by FEA. A Spice simulation result shows as high as 97% efficiency provided by the proposed shielded-CPT. With misalignment conditions from 1 cm to 3 cm, the system could have managed the efficiency from 85% to 74% in the Y-misalignment direction, and drop to 48% when the coupler is in the X-misalignment direction.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132220084","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
A New Receiver-Side Integrated Regulator With Phase Shift Control Strategy For Wireless Power Transfer System 一种新的无线电力传输系统接收机侧集成相移控制策略
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291306
Young-Dal Lee, Dongmin Kim, Chong-Eun Kim, G. Moon
{"title":"A New Receiver-Side Integrated Regulator With Phase Shift Control Strategy For Wireless Power Transfer System","authors":"Young-Dal Lee, Dongmin Kim, Chong-Eun Kim, G. Moon","doi":"10.1109/WoW47795.2020.9291306","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291306","url":null,"abstract":"In the receiver-side of wireless power transfer (WPT) system, the two power stages such as rectifier and battery control converter have been widely used due to its easy implementation. However, since the two power stages cause many number of components on the conduction path, it degrades the efficiency and power density of WPT system. Also, in the WPT system, because the communication control between transmitter and receiver side have to be used due to its physical contactless structure, the transmitter-side cannot effectively control receiver-side rectifier outputs. To relieve these drawbacks, this paper proposes a new receiver-side integrated regulator. The proposed structure is based on the general full-wave rectifier diode structure, and a single-switch is integrated for output voltage regulation with phase-shift control strategy. The proposed structure can reduce the number of components on the conduction path, resulting in high power density. Moreover, the proposed method can remove communication control with stable receiver-side outputs. Theoretical analysis and simulation results verify that the proposed structure and control method enables stable output voltage regulation without communication control between transmitter and receiver side. The effectiveness of the proposed structure and control method is verified by a prototype with input 380VDC and 150W output.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133364419","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
An Electrodynamic Wireless Power Receiver ‘Chip’ for Wearables and Bio-implants 一种用于可穿戴设备和生物植入物的电动无线电源接收器芯片
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291290
M. A. Halim, Adrian A. Rendon-Hernandez, D. Arnold
{"title":"An Electrodynamic Wireless Power Receiver ‘Chip’ for Wearables and Bio-implants","authors":"M. A. Halim, Adrian A. Rendon-Hernandez, D. Arnold","doi":"10.1109/WoW47795.2020.9291290","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291290","url":null,"abstract":"This paper presents the design, fabrication and experimental characterization of a chip-sized wireless power receiver for low-frequency electrodynamic wireless power transmission (EWPT). Utilizing a laser micro-machined meandering suspension, one NdFeB magnet, and two PZT-SA piezoelectric patches, this 0.08 cm3 micro-receiver operates at its torsion mode mechanical resonance of 724 Hz. The device generates 360 µW average power (4.2 mWcm−3 power density) at 1 cm distance from a transmitter coil operating at 724 Hz and safely within allowable human exposure limits of 2 mTrms field. Compared to a previously reported macro-scale prototype, this volume-efficient micro-receiver is 31x smaller and offers 3.2x higher power density within a low-profile, compact footprint for wirelessly charging wearable and bio-implantable devices.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114869054","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
Analysis of the Losses in Contactless Energy Transfer Systems Based on Different Distances Between Shielding, Ferrite and Coil 基于屏蔽、铁氧体和线圈之间不同距离的非接触式能量传递系统损耗分析
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291294
Philipp Präg, David Maier, N. Parspour
{"title":"Analysis of the Losses in Contactless Energy Transfer Systems Based on Different Distances Between Shielding, Ferrite and Coil","authors":"Philipp Präg, David Maier, N. Parspour","doi":"10.1109/WoW47795.2020.9291294","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291294","url":null,"abstract":"In this paper, the investigation of the losses caused by ferrites in contactless energy transmission systems is presented. The focus is to find the dependence of the distance between coil and ferrite on efficiency. Three different test setups are shown to prove this. First of all, there is a single-coil structure with ferrite and shielding. The quality factor $Q$ of the coil increases with distance. The second and third structures are systems with two coils but without shielding. In addition to the $Q$ factors, the product of the coupling factors $k$ and $Q$ are also examined here. In the last setup, the kQ product increases in addition to the $Q$ factor. The additional distance between the ferrites and the coil thus leads to a higher efficiency of the system.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132597482","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
A Parameter Design Methodology Based on Voltage/Current Stress Optimization for LCCL-LC Compensated MCR WPT Systems 基于电压/电流应力优化的lcl - lc补偿MCR WPT系统参数设计方法
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291330
Minghua Zhou, Shuaiqi Li, Xuling Chen, Fuxin Liu
{"title":"A Parameter Design Methodology Based on Voltage/Current Stress Optimization for LCCL-LC Compensated MCR WPT Systems","authors":"Minghua Zhou, Shuaiqi Li, Xuling Chen, Fuxin Liu","doi":"10.1109/WoW47795.2020.9291330","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291330","url":null,"abstract":"In medium-to-high power magnetically coupling resonant wireless power transfer (MCR WPT) systems, either voltage stress or current stress on resonant components tends to be an important issue, depending on the input and output specifications. High current stress will increase the conduction loss on coils and reduce the efficiency, while high voltage stress will bring the difficulty to the design of resonant components and also will deteriorate the system reliability. In this paper, a parameter design methodology based on voltage/current stress optimization is proposed for LCCL-LC compensated MCR WPT systems. By designing the resonant frequency and the self-inductance of two coils properly, the voltage/current stress of the components are effectively controlled. A 1kW LCCL-LC compensated MCR WPT system is built, the trade-off of voltage/current stress among all the resonant components was obtained, and the high efficiency up to 92.2% is also achieved.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127301906","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
Optimization of Super Capacitor Buffered Dynamic Wireless Power Transfer System 超级电容缓冲动态无线电力传输系统的优化
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291282
Yipin Wu, Huan Zhang, Ming Liu, Ning Kang, Chengbin Ma
{"title":"Optimization of Super Capacitor Buffered Dynamic Wireless Power Transfer System","authors":"Yipin Wu, Huan Zhang, Ming Liu, Ning Kang, Chengbin Ma","doi":"10.1109/WoW47795.2020.9291282","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291282","url":null,"abstract":"Wireless power transfer (WPT) systems operating in megahertz (MHz) have advantages of small size and high tolerance for coil misalignment. Existing MHz WPT systems mostly focus on static scenarios. But in real applications, many systems require dynamic charging and it is desirable to achieve longest charging distance with fewer number of transmitting coils. In this paper, super capacitor (SC) is added to the receiving side as an energy buffer. SC stores energy when the coupling is strong, and releases energy when the coupling is weak. In a certain range, a larger capacitance lead to a higher distance between transmitting coil which can significantly reduce the construction cost. However, excessive capacitance of the SC will increase the weight and volume of the system which will reduce the receiver power density. Therefore, this paper uses genetic algorithm (GA) to optimize the pole spacing between two adjacent transmitting coils and capacitance of SC. A set of optimized parameters was selected for simulation verification. Simulation results match well with the theoretical analysis, which implies that compared to the dynamic WPT system without SC, the SC buffered WPT system can effectively increase power density and decrease construction cost.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127374319","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
A Reliability Improvement Method for Three-Level Inverters with Modified VSVPWM 基于改进VSVPWM的三电平逆变器可靠性改进方法
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291329
Sang-Won An, Kyo-Beum Lee
{"title":"A Reliability Improvement Method for Three-Level Inverters with Modified VSVPWM","authors":"Sang-Won An, Kyo-Beum Lee","doi":"10.1109/WoW47795.2020.9291329","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291329","url":null,"abstract":"This paper proposes a novel virtual space vector pulse width modulation (VSVPWM) method for reliability improvement of the three-level inverters. In the three-level inverters, the DC-link is divided into two capacitors to create the neutral-point (NP). The split DC-link capacitors induce a drawback which is AC unbalance between each DC-link voltage of capacitors. To mitigate this drawback, VSVPWM was widely researched. The VSVPWM controls AC ripple component of the NP voltage to zero within one switching period. However, VSVPWM does not consider the NP ripple current and CMV. The NP current equals to the sum of each capacitor currents. Its large ripple component increases the core temperature in capacitor, which reduces the lifespan of the DC-link capacitors. Additionally, CMV with a large peak-to-peak value generates the electro-magnetic interference issues and leakage current. In this paper, an optimized VSVPWM for suppressing the capacitor ripple current and the variation of CMV is proposed. The effectiveness and validity of the modified VSVPWM are verified with various simulation results.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"20 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113979077","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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