Analysis of impedance matched circuit for wireless power transfer

Ong, Alex; Sampath, J.P.K.; Beng, Gilbert Foo Hock; Tan, Yen-Kheng; Vilathgamuwa, D.M.; Bac, Nguyen Xuan

doi:10.1109/iecon.2014.7048931

Cited by 10 publications

(14 citation statements)

References 15 publications

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“…Note to that LC characteristic impedance, = � , should approximate the equivalent load resistance, r Leq . What we find in our analysis and simulation is that the operating frequency shifts according to (39) rather than (38) when the filter and coupler elements are equal. Previous work [38] puts ω LCC~0 .618ω 0 whereas (39) at 0.636 to 0.72ω 0 which closely approximates the value for peak power found by simulation.…”

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 60%

“…What we find in our analysis and simulation is that the operating frequency shifts according to (39) rather than (38) when the filter and coupler elements are equal. Previous work [38] puts ω LCC~0 .618ω 0 whereas (39) at 0.636 to 0.72ω 0 which closely approximates the value for peak power found by simulation. In (40) and (41) the operating frequency, f 0~2 3 kHz to coincide with the S-P compensated case, which according to (39) requires that the compensating parameters be tuned to approx.…”

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 60%

“…Parameters of the LCC compensator network are taken as C f1 =C f1 =C 1 =C 2 and L f1 =L 1 =L 2 =L f2 . It is also known that for LCC the peak operating frequency shifts well above the resonant point (37) as given by (38) as developed by Ong et.al. [38].…”

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 96%

“…It is also known that for LCC the peak operating frequency shifts well above the resonant point (37) as given by (38) as developed by Ong et.al. [38]. Note to that LC characteristic impedance, = � , should approximate the equivalent load resistance, r Leq .…”

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 96%

“…15 kHz. The authors [38] provide a more detailed analysis of the LCC compensation method for WPT. LCC compensation has somewhat lower input impedance than S-P tuning due to the presence of cascaded parallel LC and series LC stages.…”

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 99%

See 4 more Smart Citations

Elements of Wireless Power Transfer Essential to High Power Charging of Heavy Duty Vehicles

Miller¹,

Daga

2015

IEEE Trans. Transp. Electrific.

120

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Scaling wireless charging to power levels suitable for heavy duty passenger vehicles and mass transit bus requires in-depth assessment of WPT architectures, component sizing and stress, package size, electrical insulation requirements, parasitic loss elements, and cost minimization. It is demonstrated through an architecture comparison that the voltage rating of the power inverter semiconductors will be higher for LCC than for a more conventional S-P tuning. Higher voltage at the source inverter dc bus facilitates better utilization of the silicon, hence lower cost. Electrical and thermal stress factors of the passive components are explored, in particular the compensating capacitors and coupling coils. Experimental results are presented for a prototype, pre-commercial, 10 kW wireless charger designed for HD vehicle application. Results are in good agreement with theory and validate a design that minimizes component stress.

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Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 60%

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 60%

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 96%

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 96%

Section: Fig 10 Lcc Reduced Schematic For Analysismentioning

confidence: 99%

See 3 more Smart Citations

Elements of Wireless Power Transfer Essential to High Power Charging of Heavy Duty Vehicles

Miller¹,

Daga

2015

IEEE Trans. Transp. Electrific.

120

View full text Add to dashboard Cite

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A critical review on inductive wireless power transfer charging system in electric vehicle

Geetha

Usha

2022

Energy Storage

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Considering a prospect where a driverless electric vehicle (EV) requires an automatic charging system that does not need a person to do anything. In this case, there is a need for a fully automated, fast, safe, cost‐effective, and reliable charging infrastructure that can be used for EVs and other EVs. This infrastructure must also be profitable and allow for quick adoption in electric transportation systems. Wireless charging methods may allow you to understand these characteristics. Wireless power transfer (WPT) is a future technology that offers flexibility, convenience, safety, and the capacity to be automated. Due to its high efficiency and ease of maintenance, resonant inductive wireless charging should get more attention in WPT techniques than other WPT methods. This literature provides an overview of the status of Resonant Inductive Wireless Power Transfer Charging technology, as well as a look at the current and prospects of the wireless EV industry. First, the article provides a brief history of wireless charging technologies, outlining the benefits and drawbacks. Then, the research assists in a comparative analysis of various types of WPT methodologies, control strategies, and compensation networks that have been done so far. The static and dynamic charging procedures, as well as their features, are shown. To increase charging power, a novel approach to the usage of superconducting materials in coil designs is examined, and their potential influence on wireless charging is highlighted. The detailed role and importance of power electronics, as well as the many types of converters utilized in diverse applications, are highlighted. The batteries and their management systems, as well as numerous WPT difficulties, are also discussed. Different trades are investigated, including cyber security economic consequences, health and safety, foreign object identification, and the effect and influence on the distribution grid. This article also highlights the opportunities and challenges associated with wireless charging systems. We anticipate that our effort will contribute to the advancement of WPT system research and development.

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Survey on magnetic resonant coupling wireless power transfer technology for electric vehicle charging

Mou

Gladwin

Zhao

et al. 2019

IET Power Electronics

107

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2019) 'Survey on magnetic resonant coupling wireless power transfer technology for electric vehicle charging. ', IET power electronics.,12 (12). pp. 3005-3020.The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.Abstract: Wireless Power Transfer technology (WPT) makes it possible to supply power through an air-gap, without the need for current-carrying wires. One important technique of WPT technology is magnetic resonant coupling (MRC) WPT. Based on the advantages of MRC WPT, such as safety and high power transfer efficiency over a long transmit distance, there are many possible applications of MRC WPT. This paper provides a comprehensive, state-of-the-art review of the MRC WPT technology and wireless charging for electric vehicle (EV). A comparative overview of MRC WPT system design which includes a detailed description of the prototypes, schematics, compensation circuit topologies (impedance matching), and international charging standards. In addition, this paper provides an overview of wireless EV charging including the static wireless EV charging and the dynamic wireless EV charging, which focuses on the coil design, power transfer efficiency, and current research achievement in literature.

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Analysis of impedance matched circuit for wireless power transfer

Cited by 10 publications

References 15 publications

Elements of Wireless Power Transfer Essential to High Power Charging of Heavy Duty Vehicles

Elements of Wireless Power Transfer Essential to High Power Charging of Heavy Duty Vehicles

A critical review on inductive wireless power transfer charging system in electric vehicle

Survey on magnetic resonant coupling wireless power transfer technology for electric vehicle charging

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