A hybrid wireless charging system with DDQ pads for dynamic charging of EVs

Zhao, Lei; Ruddell, Steven; Thrimawithana, Duleepa J.; Madawala, Udaya K.; Hu, Patrick

doi:10.1109/wow.2017.7959397

Cited by 28 publications

(11 citation statements)

References 22 publications

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“…High efficiency and steady power transfer is the first and uppermost objectives for all IPT power applications. There are many studies to solve these problems, such as novel compensation topologies and parameters optimization [7], [8], magnetic couplers design for larger coupling coefficient [9]- [11], control techniques for obtaining desired output characteristics [12] and so on. Among these fields, compensation topology is essential for its determination of resonant frequency, power factor, output characteristics to achieve higher system efficiency, power density, and reliability.…”

Section: Introductionmentioning

confidence: 99%

An LCC-SP Compensated Inductive Power Transfer System and Design Considerations for Enhancing Misalignment Tolerance

Zhang

Cui

et al. 2020

IEEE Access

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This paper proposes a novel LCC-SP compensation topology for inductive power transfer (IPT) system and its tuning methods to enhance misalignment tolerance. The impedance condition and the constant current output characteristic of the newly proposed topology are analyzed, followed by a detailed derivation of compensation parameters based on the discussion about resonant tank. The realization of zero voltage switching (ZVS) and reactive power demand are discussed by theoretical deduction and numerical simulation. Then, the parameters detuning method to enhance misalignment tolerance is presented and it is found that a stable output current is maintained over a wide misalignment. Compared to traditional compensation topologies, the newly proposed compensation topology provides the advantages of easy achievement of ZVS, high design freedom and high misalignment tolerance. Finally, the IPT prototype with the LCC-SP compensation network is built and tested. The experimental results match well with the calculations, validating the correctness of theoretical analysis.

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Section: Introductionmentioning

confidence: 99%

An LCC-SP Compensated Inductive Power Transfer System and Design Considerations for Enhancing Misalignment Tolerance

Zhang

Cui

et al. 2020

IEEE Access

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“…• Resultantly, the addition of the quadrature coil improves the system's robustness to horizontal misalignment [11].…”

Section: Dd Pad Transmitter and Ddq Pad Receivermentioning

confidence: 99%

“…It was also recommended that a segmentation system should be implemented which uses an optical sensing technique, as opposed to magnetic sensing. [11] . .…”

Section: Executive Summarymentioning

confidence: 99%

“…• The addition of the quadrature coil assists in the removal of the dead zones present in the previous DD to DD topology [11].…”

Section: Dd Pad Transmitter and Ddq Pad Receivermentioning

confidence: 99%

“…receiver pad moving along multiple transmitter pads[11] graph of the output power as the electric vehicle moves -two different TX-RX topologies investigated: DD to DD and "crossed DD" to DD[12] displays the Online Electric Vehicle (OLEV), which was developed by KAIST (Korea Advanced Institute of Science and Technology). It is an electric bus which receives wireless power from electrical cables embedded in the surface of the road[24].…”

mentioning

confidence: 99%

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