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

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Active Impedance Control for Inductive Charging of Electric Vehicles 电动汽车感应充电有源阻抗控制
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291286
Cody Liu, D. Thrimawithana, G. Covic, M. Kesler
{"title":"Active Impedance Control for Inductive Charging of Electric Vehicles","authors":"Cody Liu, D. Thrimawithana, G. Covic, M. Kesler","doi":"10.1109/WoW47795.2020.9291286","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291286","url":null,"abstract":"Misalignment of pads and the charging and discharging of the electric vehicle (EV) battery makes delivering constant power with an inductive power transfer (IPT) system non-trivial. One solution is to add Tunable Matching Networks (TMNs), which are essentially variable reactances, in between the converters and compensation networks. However, TMNs are costly to implement. As an alternative, this paper proposes a method of tuning and controlling the system known as Active Impedance Control (AIC) that emulates the behaviour of a TMN. Mathematical modelling was used to design an AIC system that can transfer 7.7 kW of power with near unity power factor under a 2.35-fold change in induced voltage for a constant battery voltage. Additionally, rectifier input current varies by only 1.4 times across the operating range. Furthermore, simulation results show good agreement with the mathematical model.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"53 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":"129402257","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
Design Considerations for 50 kW Dynamic Wireless Charging with Concrete-Embedded Coils 50kw混凝土嵌入式线圈动态无线充电的设计考虑
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291275
Benny J. Varghese, Abhilash Kamineni, Nicholas A. Roberts, M. Halling, D. Thrimawithana, R. Zane
{"title":"Design Considerations for 50 kW Dynamic Wireless Charging with Concrete-Embedded Coils","authors":"Benny J. Varghese, Abhilash Kamineni, Nicholas A. Roberts, M. Halling, D. Thrimawithana, R. Zane","doi":"10.1109/WoW47795.2020.9291275","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291275","url":null,"abstract":"Practical implementation of dynamic inductive power transfer requires integrating coil design techniques with existing construction methods. This work explores the various design challenges associated with embedding inductive power transfer (IPT) coils in concrete pavements. The coil design process outlined in this paper takes into account the structural aspects of concrete pavements and ease of construction. This paper also explores the effects of ferrite spacing on losses generated in the pad. A phase change material is used for passive thermal management of ferrite bars inside the concrete. Concrete-embedded pad prototypes are constructed and evaluated.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"12 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":"132473537","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
Sensorless Vehicle Position Detection in Electric Vehicle by Logistic Estimation Function of Mutual Inductance 基于互感Logistic估计函数的电动汽车无传感器位置检测
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291315
Jirawat Sithinamsuwan, H. Fujimoto, Y. Hori
{"title":"Sensorless Vehicle Position Detection in Electric Vehicle by Logistic Estimation Function of Mutual Inductance","authors":"Jirawat Sithinamsuwan, H. Fujimoto, Y. Hori","doi":"10.1109/WoW47795.2020.9291315","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291315","url":null,"abstract":"Unlimited driving distance of electric vehicles (EVs) is expected to be achieved by dynamic wireless power transfer (DWPT) system. However, one of the major problems in DWPT system is to locate the position of the vehicle in order to control the power transmission timing. Several researchers have developed many vehicle detection methods. This paper presents sensorless vehicle detection system by using only the change of mutual inductance of the DWPT system. Normally, mutual inductance model is difficult to be described as a function. Estimation function of mutual inductance is presented in this paper. Moreover, this proposed method improves the robustness of the detection system to vehicle misalignment and safety issues due to the overcurrent. The feasibility of this sensorless vehicle position detection method is validated by simulation bench driving test.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"599 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":"123331307","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 Wireless Selective Frequency Hybrid Compensation Network with Constant Power Profile against Pad Misalignment 一种具有恒功率分布的无线选择频率混合补偿网络
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291312
Zixi Liu, Qi Zhu, M. Su, A. Hu
{"title":"A Wireless Selective Frequency Hybrid Compensation Network with Constant Power Profile against Pad Misalignment","authors":"Zixi Liu, Qi Zhu, M. Su, A. Hu","doi":"10.1109/WoW47795.2020.9291312","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291312","url":null,"abstract":"Wireless Power Transfer (WPT) becomes increasingly popular in both industrial and commercial applications due to its ability to deliver energy across a large airgap, providing physical isolation, freedom in spatial misalignment, etc. However, wirelessly movable objects can cause changes to system key parameters related to magnetic couplers, which will affect power losses and power throughput of WPT systems. This paper proposes a novel Selective-Frequency-hybrid (SF-Hybrid) WPT system that provides an approximately constant power profile under misaligned positions. Four series parallel LC sub-tuning branches are connected in a way that can exhibit inductive, capacitive, short circuiting, or open circuiting characteristics at different frequencies. Hence, the SF-Hybrid system can be designed to be equivalent to either series- or parallel-compensation networks when operating at different frequencies. If the input voltage is a combined two or multiple sinusoidal voltages at integer times of the frequencies, the system can provide a relatively constant power profile against pad misalignments. Theoretical analysis shows the feasibility of an example SF -Hybrid system operating at 20 kHz and 60 kHz, and it is further validated by a simulation study based on a 1.3 kW system.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"245 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":"131918103","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
Boundary of Soft-switching for Efficient Operation of Bi-directional IPT Systems 双向IPT系统有效运行的软开关边界
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291279
Ryosuke Ota, D. Thrimawithana, U. Madawala, G. Covic
{"title":"Boundary of Soft-switching for Efficient Operation of Bi-directional IPT Systems","authors":"Ryosuke Ota, D. Thrimawithana, U. Madawala, G. Covic","doi":"10.1109/WoW47795.2020.9291279","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291279","url":null,"abstract":"In inductive power transfer (IPT) systems, highspeed switching devices such as SiC MOSFETs are used, though, these devices generate electromagnetic noise at switching. Therefore, it is desirable to apply soft-switching technique to the converters in IPT systems to reduce the noise. However, in order to achieve soft-switching operation, it is necessary to utilize the reactive current from the resonant network, however this causes additional conduction loss. Therefore, in order to minimize conduction loss, this paper reconsiders the efficiency characteristics under soft-switching IPT systems. In addition, a guideline for improving system efficiency is shown, and its effectiveness is confirmed by experiment. In this experiment, the efficiency of the overall system is improved by 0.8 % at the maximum transmission power in comparison with conventional methods.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"62 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":"134398378","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
Eddy Current Loss Analysis of Wireless Power Transfer System for Autonomous Underwater Vehicles 自主水下航行器无线电力传输系统涡流损耗分析
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291281
Zhimeng Liu, Lifang Wang, Yanjie Guo, Chengxuan Tao
{"title":"Eddy Current Loss Analysis of Wireless Power Transfer System for Autonomous Underwater Vehicles","authors":"Zhimeng Liu, Lifang Wang, Yanjie Guo, Chengxuan Tao","doi":"10.1109/WoW47795.2020.9291281","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291281","url":null,"abstract":"This paper presents an eddy current loss analysis method in underwater wireless power transfer (UWPT). Firstly, this paper uses analytical solution method to analyze the eddy current loss in the seawater. Also, the influence of the current and working frequency on the eddy current loss is discussed to analyze the eddy current loss. Then, based the eddy current loss analysis and coil mutual inductance model, a coil mutual inductance model with the eddy current loss is built. Finally, a 1kW underwater WPT prototype is developed. Finite element simulation and experimental results have proved that the analysis of the eddy current loss and the coils mutual inductance model with the eddy current loss is effective.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"15 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":"126536214","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
Wireless Power Transfer for Autonomous Underwater Vehicle 自主水下航行器的无线电力传输
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291324
Chan Anyapo, P. Intani
{"title":"Wireless Power Transfer for Autonomous Underwater Vehicle","authors":"Chan Anyapo, P. Intani","doi":"10.1109/WoW47795.2020.9291324","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291324","url":null,"abstract":"In this work, we develop a wireless power transfer (WPT) system for Autonomous Underwater Vehicle (AUV). The objective of this work is to reduce the time of onsite AUV's battery disassembling and assembling process. To apply the wireless charging system can solve the conventional charging in term of flexibility and convenience. The effect of coupling factors at different distances between transmitter (TX) and receiver (RX) coil in seawater was investigated. It is confirm that TX and RX coil has higher coupling coefficient when it was operated in the seawater. To validate the proposed system, a laboratory hardware prototype was built and tested. Hence, the results were revealed that the proposed WPT system could work properly according to the proposed concept with the maximum receiving power of 51.48-W while the maximum power transfer efficiency was around 70-%.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"3 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":"129779720","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
Approximate Linearization of Rectifier Load in Wireless Power Transfer Systems 无线电力传输系统中整流负载的近似线性化
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291311
Yanjie Guo, Yuwang Zhang, Qiang Bo, Zhimeng Liu, Jinxue Meng, Lifang Wang
{"title":"Approximate Linearization of Rectifier Load in Wireless Power Transfer Systems","authors":"Yanjie Guo, Yuwang Zhang, Qiang Bo, Zhimeng Liu, Jinxue Meng, Lifang Wang","doi":"10.1109/WoW47795.2020.9291311","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291311","url":null,"abstract":"This article presents an approximate linearization method for the rectifier load used in wireless power transfer (WPT) systems. The related complex non-linear relationship between the WPT load and rectifier input impedance is transferred to simple linear expressions through the proposed method, which will be helpful for system design and control. First, the equivalent circuit model is established considering WPT system with the uncontrolled diode rectifier and LCC compensation. Then, the complete expressions of the rectifier load equivalent impedance are obtained based on the model. Moreover, the monotonicity of the parameter relationships is discussed in order to clarify the linearization prerequisite. Furthermore, the linearization process is presented and the analysis indicates that it will be affected by the selected linearized point and the related WPT parameters. Finally, a WPT prototype is developed. The experiments and simulations have proved the effectiveness of the presented rectifier load analysis and its linearization method on the conditions of mutual-inductance, compensation parameter, and battery voltage variations.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"79 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":"131145763","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 600W 6.78MHz Wireless Charger for an Electric Scooter 电动滑板车用600W 6.78MHz无线充电器
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291303
C. Kwan, J. Arteaga, S. Aldhaher, D. Yates, P. Mitcheson
{"title":"A 600W 6.78MHz Wireless Charger for an Electric Scooter","authors":"C. Kwan, J. Arteaga, S. Aldhaher, D. Yates, P. Mitcheson","doi":"10.1109/WoW47795.2020.9291303","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291303","url":null,"abstract":"This paper presents a 600 W electric scooter wireless charging solution operating at a frequency of 6.78 MHz. At the transmitter end, a load-independent Class EF push-pull (differential) inverter with GaN transistors was used to drive a 33 cm square-shaped copper pipe coil. A full-wave voltage-tripler Class D rectifier with silicon Schottky diodes was connected to a 24 cm-by-26 cm trapezoidal receiver coil (also made of copper pipe) mounted underneath the steel frame of the scooter. In order to reduce the eddy current and magnetic losses in the steel chassis, parts of the electric scooter frame were shielded with copper tape. With the battery recharging in situ at 600 W, the IPT system achieved a DC-to-DC efficiency of 84 %.","PeriodicalId":192132,"journal":{"name":"2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)","volume":"121 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":"131026124","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
Model Predictive Control for Contactless Energy Transfer Systems 非接触式能量传递系统的模型预测控制
2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI: 10.1109/WoW47795.2020.9291327
Jannis Noeren, N. Parspour
{"title":"Model Predictive Control for Contactless Energy Transfer Systems","authors":"Jannis Noeren, N. Parspour","doi":"10.1109/WoW47795.2020.9291327","DOIUrl":"https://doi.org/10.1109/WoW47795.2020.9291327","url":null,"abstract":"In this paper, a novel current and power control method for contactless energy transfer (CET) systems is presented. A variety of CET powered applications, such as charging systems, mandatorily require a changeable transfer power. Usually, the power flow of a fixed frequency CET system is adjusted with the aid of conventional pulse width modulation (PWM). This type of modulation leads to unavoidable hard switching cycles in the inverter and thus results in elevated dynamic MOSFET losses along with a decreased efficiency. In contrast, the here presented predictive control method avoids hard switching and hence allows an increased efficiency. Besides, the model based strategy enables very high control speeds.","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":"132018923","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
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