Design Methodology of Free-Positioning Nonoverlapping Wireless Charging for Consumer Electronics Based on Antiparallel Windings

Zhang, Yiming; Chen, Shuxin; Li, Xin; Tang, Yi

doi:10.1109/tie.2020.3048322

Cited by 82 publications

(8 citation statements)

References 22 publications

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“…), and the application scenarios are more varied. Therefore, it is widely studied for many applications, such as biomedicine [1], underwater devices [2], smart homes [3], and electric vehicles [4], [5]. Double-sided LCC compensation topology is widely used in WPT systems in various fields because of its advantages of better tolerance to mutual inductance, frequency, load and other parameter changes, and higher design freedom [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Robust optimization of double-sided LCC compensation topology based on NSGAⅡ algorithm

Cui,

Du,

Zhao

et al. 2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

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In this paper, a compensation network parameter design method based on multi-objective optimization algorithm has been proposed to meet the robust requirements of the output characteristics of wireless power transfer (WPT) system under non-resonant conditions. The equivalent circuit mathematical model of WPT system under non-resonant condition is established, and the sensitivity of system output characteristics to different component parameters is analyzed. A compensatory topology parameter optimization method of double-sided LCC based on NSGAII algorithm is proposed, which effectively reduces the system output power fluctuation when multiple parameters fluctuate together, improves the output characteristics of the double-sided LCC WPT system, and enhances the robustness of the system output. Finally, the proposed method is validated by comparing the power variation before and after the system parameter optimization under the condition of multi-parameter combined fluctuation and the condition of sensitive parameter random fluctuation. It has lower power variation when component parameter fluctuates randomly and it improves the controllability of the system to a certain extent.

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Section: Introductionmentioning

confidence: 99%

Robust optimization of double-sided LCC compensation topology based on NSGAⅡ algorithm

Cui,

Du,

Zhao

et al. 2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

View full text Add to dashboard Cite

show abstract

“…WPT has unique advantages when applied in electric vehicle, consumer electronics, and implantable medical devices. [1][2][3] From the development trend of the research field, the omnidirectional WPT is used to overcome the limitations of unidirectional WPT. [4][5][6][7][8][9] In practice, most WPT systems require Rx to be placed in a reception area.…”

Section: Introductionmentioning

confidence: 99%

C2DD—An omnidirectional receiver based on single‐coil transmitter

Tian,

Guo,

Chen

et al. 2023

Circuit Theory & Apps

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In this paper, the omnidirectional receiver (Rx) of wireless power transfer (WPT) system is proposed, making any transmitter (Tx) into omnidirectional Tx. The omnidirectional Rx is composed of the quadrature double‐D (DD) coils and circular coil in series (C2DD). The C2DD Rx can utilize the toroidal magnetic field (TMF) and the linear magnetic field (LMF). The paper presents the circuit diagram model of WPT system. Based on the analysis of circuit model, the smooth mutual inductance of system is responsible for stable transmission performance during C2DD Rx movement. The result of numerical calculation and magnetic field simulation verifies the omnidirectional capability of the C2DD Rx with circular Tx as an example. Experiment shows that the C2DD Rx receives power in any direction. The C2DD Rx can receive maximum transmission power of 7.1 W with maximum transmission efficiency of 59%.

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“…Magnetic couplers can be specially designed to improve misalignment tolerance, such as multiple transmitting coils 10 or multiple receiving coils, 11 solenoidal coil, 12 antiparallel windings, and 13 additional windings. 14 Compensations are added in WPT systems to improve volt-ampere (VA) rating and efficiency.…”

Section: Introductionmentioning

confidence: 99%

Combination of three‐coil and LCC‐S structures for misalignment tolerance in wireless charging system with load‐independent output

Zhang,

Wu,

Liu

et al. 2023

Circuit Theory & Apps

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SummaryMisalignment tolerance is an important issue for the electric vehicle wireless charging system. This letter proposes a hybrid topology of the inductor–capacitor–capacitor‐series (LCC‐S) and three‐coil structures with load‐independent output to achieve misalignment tolerance, which is suitable for anti‐offset in the door‐to‐door direction of electric vehicles. The unipolar coil is divided into two windings to form the two coils in the three‐coil structure. The bipolar coil is employed as the transmitting coil of the LCC‐S topology, realizing decoupling from the two unipolar windings of three‐coil structure. The receiving coil only consists of a unipolar coil. From the central to the boundary positions, the output power of the three‐coil structure decreases while that of the LCC‐S topology increases. In this way, the output power can be stabilized against misalignment. Compared with existing hybrid topologies with two sets of coils, the receiver side adopts only one receiving coil and one compensation, which is compact, low‐profile, and cost effective. Besides, the output voltage is independent of the load, and the system can achieve constant voltage output characteristic. The experimental results validate the proposed system.

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Design Methodology of Free-Positioning Nonoverlapping Wireless Charging for Consumer Electronics Based on Antiparallel Windings

Cited by 82 publications

References 22 publications

Robust optimization of double-sided LCC compensation topology based on NSGAⅡ algorithm

Robust optimization of double-sided LCC compensation topology based on NSGAⅡ algorithm

C2DD—An omnidirectional receiver based on single‐coil transmitter

Combination of three‐coil and LCC‐S structures for misalignment tolerance in wireless charging system with load‐independent output

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