Wireless Fleet Charging System for Electric Bicycles

Beh, Hui Zhi Zak; Covic, Grant A.; Boys, J.T.

doi:10.1109/jestpe.2014.2319104

Cited by 52 publications

(14 citation statements)

References 30 publications

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“…14d shows a double coupled configuration rail that transfers power from the power supply through a magnetic coupler to each charging section rather than via direct connection. A simple switch (such as a bidirectional ac switch) is then used to control the turn ON and OFF of each individual section [106,107]. The drawback of this design is a high requirement of capacitors because they need to carry full track current at the frequency of operation.…”

Section: Power Supply Rail Designmentioning

confidence: 99%

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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Section: Power Supply Rail Designmentioning

confidence: 99%

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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“…In [53], with an optimised WPT system, an efficiency of 95% achieved for a 20 cm separation. A bicycle charging system is proposed in [56,57]. Even though proximity sensors are included for energy conservation, reduced air gap makes the system vulnerable to the requirements.…”

Section: Basic Conceptmentioning

confidence: 99%

Overview of wireless charging and vehicle‐to‐grid integration of electric vehicles using renewable energy for sustainable transportation

Joseph

Elangovan

Arunkumar

2019

IET Power Electronics

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The quest for energy conservation is a thought-provoking conundrum to researchers. Time to time they contributed towards this pursuit. In the 19th century, it was a fascinating idea about electric vehicles (EVs). As most of the developing countries depend on conventional energy sources, integration of EVs with renewable energy sources justified the cause. The parking slots became transformed into unlimited sources of clean energy. For the comfort of charging and better energy management, wireless power transfer technology was introduced to the charging station. As a fulfilment of the technology, the vehicle-to-grid (V2G) integration was implemented. It helped the bi-directional power flow between the vehicle and the grid with renewable energy. This study presents an extensive review of the renewable energy powered wireless charging and V2G integration of EVs. Various topologies are discussed with mathematical explanations and block diagrams. Concepts are validated with PSIM simulations.

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“…The other variables Vm1 and Vm2 are, (5) where <P I and <P z describes the phase difference in each leg between upper and lower switches. In order to reveal the transfer function of the system, the circuit steady state analysis is explained by subsequent equations.…”

Section: A Nalysis Of T He P Roposed I Nvertermentioning

confidence: 99%

A novel multi-level phase-controlled resonant inverter with common mode capacitor for wireless EV chargers

Asa

Colak

Bojarski

et al. 2015

2015 IEEE Transportation Electrification Conference and Expo (ITEC)

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A novel multi-level phase-controlled resonant inverter is presented in this paper. The inverter is intended for wireless energy transfer systems. The proposed converter topology is obtained with two identical multi-level dc-ac inverters, connected in parallel through two common-mode capacitors. To overcome high voltage and current stresses across the switches, the proposed topology splits the voltage and current in each phase so that high power applications are possible with the proposed converter. An asymmetrical phase-shift modulation with a constant frequency regulates the output voltage in order to overcome the drawback of a wide range of operating frequency that occurs in conventional wireless power topologies. Theoretical and simulation results of the proposed circuit show that the converter performance is suitable for high power contactless electric vehicle (EV) chargers. The performance of the proposed converter is confirmed with experimental results using 8 inch air gap coreless transformer, which has dimension 2.5 by 2.5 feet.The converter is tested at 120 V input with the output of 120 V at a full power of 1 kW with a maximum efficiency of 93.7%.

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Wireless Fleet Charging System for Electric Bicycles

Cited by 52 publications

References 30 publications

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

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

Overview of wireless charging and vehicle‐to‐grid integration of electric vehicles using renewable energy for sustainable transportation

A novel multi-level phase-controlled resonant inverter with common mode capacitor for wireless EV chargers

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