Flexible Combination and Switching Control for Robust Wireless Power Transfer System With Hexagonal Array Coil

Tan, Pingan; Peng, Tao; Gao, Xieping; Zhang, Bo

doi:10.1109/tpel.2020.3018908

Cited by 42 publications

(12 citation statements)

References 32 publications

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“…A 1 kW design with a flat spiral square coil design was proposed for mid-power EV charging [28]. Hexagonal coil was proposed to have a high coupling coefficient, more tolerance to misalignment and effective structure for multi-array coils such as honeycomb designs [29][30][31][32]. A circular coil structure is the most common, but it is particularly sensitive to misalignment.…”

Section: Coil Designmentioning

confidence: 99%

Inductive Power Transfer for Electric Vehicle Charging Applications: A Comprehensive Review

et al. 2022

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Nowadays, Wireless Power Transfer (WPT) technology is receiving more attention in the automotive sector, introducing a safe, flexible and promising alternative to the standard battery chargers. Considering these advantages, charging electric vehicle (EV) batteries using the WPT method can be an important alternative to plug-in charging systems. This paper focuses on the Inductive Power Transfer (IPT) method, which is based on the magnetic coupling of coils exchanging power from a stationary primary unit to a secondary system onboard the EV. A comprehensive review has been performed on the history of the evolution, working principles and phenomena, design considerations, control methods and health issues of IPT systems, especially those based on EV charging. In particular, the coil design, operating frequency selection, efficiency values and the preferred compensation topologies in the literature have been discussed. The published guidelines and reports that have studied the effects of WPT systems on human health are also given. In addition, suggested methods in the literature for protection from exposure are discussed. The control section gives the common charging control techniques and focuses on the constant current-constant voltage (CC-CV) approach, which is usually used for EV battery chargers.

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Section: Coil Designmentioning

confidence: 99%

Inductive Power Transfer for Electric Vehicle Charging Applications: A Comprehensive Review

et al. 2022

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“…The coupling coefficient is 0.012 and the calculated accordant transmission efficiency is only 31.8%. Therefore, the transmitter matrix is designed with single-layer adjacent circular coils rather than overlapped [21,[23][24] or polygonal coils [25][26][27] to limit the coil number and reduce the system complexity. On one hand, compared to polygonal coils, circular coils can avoid the extra AC losses that may occur at the vertex positions.…”

Section: ( )mentioning

confidence: 99%

Design and Analysis of Demand-Customized Selective Wireless Power Transfer System

Tian

Chau

Hua

et al. 2022

IEEE Trans. Ind. Electron.

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A demand-customized selective wireless power transfer (WPT) system is proposed in this paper. Multiple receivers can be recognized based on their positions and the magnetic field in the powering area can be controlled and regulated accordingly. For authorized receivers, the system can simultaneously deliver power to satisfy different output requirements for different electrical appliances, while for unauthorized ones, they can be shut down independently for energy security, even when they are also in the powering area. Compared to the traditional calculation models for multi-input multi-output (MIMO) systems, the proposed current control algorithm uses a piecewise optimization procedure to simplify the iteration and improve control flexibility. Hybrid-frequency pacing (HFP) is adopted as the control strategy to further reduce the output fluctuation and raise the system efficiency. An experimental prototype with a 3 × 3 transmitter matrix is established. The system can successfully power two receivers with the same sizes for four different power requirement scenarios, which validates the selectivity and the controllability of the proposed system.

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“…In recent years, wireless power transfer (WPT) has been the focus of researches. WPT systems have become widespread in a variety of applications such as electric vehicles (EVs), 1,2 automation systems, 3 medical devices, 4 wearable or portable electronics 5,6 since they enable both low and high power transfer. 7 This technology makes it possible to eliminate the requirement of physical conductors for power transfer.…”

Section: Introductionmentioning

confidence: 99%

Analysis and modeling of wireless power transfer supported by quadratic boost converter interfaced fuel cell power source

Büyük

Savrun

İnci

2022

Int J Numerical Modelling

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This study presents a novel wireless power transfer (WPT) system structure that transmits electrical energy from a fuel cell (FC) stack integrated with a quadratic boost converter (QBC). The main objective of the proposed study is to provide a high voltage conversion QBC based WPT system to transfer power from a low voltage FC energy unit. To adjust the power flow from the FC unit with nonlinear production behavior, a pre-regulating WPT system is developed with QBC located on the transmitting side. Besides, the design procedure of the system with analytical equations is expressed in detail. To validate the viability and effectiveness of the proposed WPT system, a 100 W proof-of-concept model is developed with Horizon H-100, and analyzed for different case studies, including dynamic operating and loading conditions. The constructed WPT system is performed for 80%, 90%, and 100% loading situations. At full loading, the performance results show that the load-side consumes power in the rating of 77.8 W while the FC power source generates approximately 93.1 W. In this case, the efficiency of the system corresponds to 83.6%. Besides, the efficiency of the complete system is analyzed under various operating conditions.

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Flexible Combination and Switching Control for Robust Wireless Power Transfer System With Hexagonal Array Coil

Cited by 42 publications

References 32 publications

Inductive Power Transfer for Electric Vehicle Charging Applications: A Comprehensive Review

Inductive Power Transfer for Electric Vehicle Charging Applications: A Comprehensive Review

Design and Analysis of Demand-Customized Selective Wireless Power Transfer System

Analysis and modeling of wireless power transfer supported by quadratic boost converter interfaced fuel cell power source

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