Multiple receivers wireless power transfer systems using decoupling coils to eliminate cross-coupling and achieve selective target power distribution

Zhuo, Kang; Luo, Bin; Zhang, Yanling; Zuo, Yuefei

doi:10.1587/elex.16.20190491

Cited by 6 publications

(1 citation statement)

References 30 publications

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“…In recent years, among the studies about multi-coil wireless power transfer systems, several types of eliminating the cross-coupling effect have been proposed [20]- [30]. Different coil structures were designed for specific numbers of RX coils, which cannot easily extend to more coils [21]- [23]. Another type of method is adopting multiple operating frequencies for the coils [24]- [26].…”

Section: Introductionmentioning

confidence: 99%

Performance enhancement of wireless battery charger by a two-phase parallel inductive power transfer topology

Chen

Lai

Juan

et al. 2023

IEICE Electron. Express

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In this study, a wireless battery charger based on a two-phase parallel inductive power transfer (IPT) topology is developed. The charging power is shared by the two-phase parallel IPT circuits to improve efficiency. The power transferring distance can also be increased by adding the coils of the second phase. A hybrid resonant compensation of LCC-LCC/LCC-S is adopted to provide stable current or voltage output for charging the battery pack. The wireless closedloop controller is implemented via RF communication. The coils of two-phase IPT circuits share the same magnetic field space to avoid increasing system volume. Decoupling capacitors are added to the RXs to eliminate the cross-coupling effect. The proposed two-phase parallel IPT-based wireless battery charger and a single-phase IPT-based charger are both constructed. The rated output voltage and current are 86.4V and 6A for charging a common 72V/36Ah battery pack. Compared with the single-phase topology, the topology of a two-phase parallel can extend the air gap distance for providing the same output power. The efficiency is also increased by about 3% in CC mode and 2% in CV mode.

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Section: Introductionmentioning

confidence: 99%

Performance enhancement of wireless battery charger by a two-phase parallel inductive power transfer topology

Chen

Lai

Juan

et al. 2023

IEICE Electron. Express

View full text Add to dashboard Cite

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Research on the optimal power allocation method of MIMO-MCRWPT system

Gao,

Liu,

Jia

et al. 2024

Electr Eng

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An Empirical Survey on Wireless Inductive Power Pad and Resonant Magnetic Field Coupling for In-Motion EV Charging System

et al. 2023

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EVs are the recent emerging automotive technology in the transportation sector to reduce the CO2 emission from the internal combustion engine. The issues in EVs technology development are battery tube capacity, heavy-size batteries, fast charging, and safe charging infrastructure. The dynamic wireless charging technology shows a suitable alternative to address the charging system-related issues in EV. However, a limited number of review studies are conducted to specifically address the wireless charging pad design challenges. The wireless inductive power pad and magnetic coupling circuit design are the main factors to decide the performance of the DWPT system. This review analyzes the current developments and challenges associated with wireless charging pad design. Further, this study investigates the potential parameters which improve the performance of a DWPT system to increase the distance traveled (mileage). First, this paper discusses WRIPT technology for DWPT EV charging application, and several parameters affecting the PTE are examined. Also, the aids factors considered for designing the DWPT power pad and different magnetic resonance coupling topologies are presented. In addition, the performance evaluation of the WRIPT power pad, with in-motion testing from the major findings in earlier studies is discussed. Finally, the challenges and opportunities of the WRIPT power pad for in-motion EV charging applications are also addressed. The current state of the art of DWPT and its future directions to make DWPT EV charging systems a fullfledged method are highlighted.

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Multiple receivers wireless power transfer systems using decoupling coils to eliminate cross-coupling and achieve selective target power distribution

Cited by 6 publications

References 30 publications

Performance enhancement of wireless battery charger by a two-phase parallel inductive power transfer topology

Performance enhancement of wireless battery charger by a two-phase parallel inductive power transfer topology

Research on the optimal power allocation method of MIMO-MCRWPT system

An Empirical Survey on Wireless Inductive Power Pad and Resonant Magnetic Field Coupling for In-Motion EV Charging System

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