EMI Reduction Method for Wireless Power Transfer Systems With High Power Transfer Efficiency Using Frequency Split Phenomena

Lee, Changmin; Woo, Seongho; Shin, Yujun; Rhee, Jaewon; Moon, Jung‐Ick; Ahn, Seungyoung

doi:10.1109/temc.2022.3198753

Cited by 17 publications

(2 citation statements)

References 25 publications

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“…There are also approaches in the coupling part, e.g. a suppression method of an undesirable leakage of a magnetic field by adding a shielding coil [35]. The proposed system does not preclude these techniques since the proposal has no restriction on the configuration of the inverter or the coupling coils.…”

Section: A Wireless Transmitter Of the Power Packetmentioning

confidence: 99%

Router for Wireless Power Packet Transmission: Design and Application to Intersystem Power Management

Mamiya,

Mochiyama,

Hikihara

2024

IEEE J. Emerg. Sel. Top. Ind. Electron.

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Power supply for small-scale battery-powered systems such as electric vehicles (EVs and mobile robots) is being actively researched. The authors are particularly interested in energy management, which considers the interconnection of such systems close to each other. This allows for overall redundancy to be maintained without assuming excessive redundancy with individual power sources. Its implementation necessitates a high level of integration between power management and information and communication technology. As one of these methods, this study investigates energy management based on power packetization. When the individual systems to be connected have moving parts or are mobile, wireless power transmission is a promising method for power sharing. However, power packetization has so far only been considered for wired transmission. In this paper, the authors address the integration of power and information in wireless channels using power packetization. A power packet router circuit is proposed for the wireless transmission of power over multiple channels selectively. Furthermore, the authors demonstrate that the developed system can handle both wired intrasystem power management and wireless intersystem power sharing in a unified manner.

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Section: A Wireless Transmitter Of the Power Packetmentioning

confidence: 99%

Router for Wireless Power Packet Transmission: Design and Application to Intersystem Power Management

Mamiya,

Mochiyama,

Hikihara

2024

IEEE J. Emerg. Sel. Top. Ind. Electron.

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“…OWPT proves particularly useful in scenarios where traditional wired connections are impractical, such as in space, underwater se ings, moving vehicles, and environments populated with numerous small devices [6]. This technology harnesses directed light beams, such as lasers or LEDs, to wirelessly transmit power with high output and conversion efficiency [7,8], offering benefits like extended transmission ranges, precise directional pa erns, and absence of Electromagnetic Interference (EMI) [9]. However, the use of lasers in OWPT introduces safety concerns due to the potential hazards posed by concentrated beams of light, necessitating adherence to stringent safety standards, such as those outlined in IEC60825-2021 [10,11].…”

Section: Introductionmentioning

confidence: 99%

Camera-Based Safety System for Optical Wireless Power Transmission Using Dynamic Safety-Distance

Zuo,

Miyamoto

2024

Photonics

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This paper introduces a new safety approach for Optical Wireless Power Transmission (OWPT), a technology that is integral to the new kinds of Wireless Power Transmission technology (WPT). It starts from the fundamental configuration of the current OWPT system, addressing the safety concerns related to lasers by involving laser irradiation hazards, laser exposure regulation and guidelines, and a comparison with other safety methods. A camera-based OWPT safety system focused on the emission control of the light source is proposed, and it utilizes a depth camera and finely tuned computer vision-based control program. Through meticulous system design and experiments, the proposed system can detect moving objects in a limited indoor environment and control the laser/LED light transmission according to the object’s velocity dynamically. Various functions and exclusive improvements towards OWPT operation are mentioned, and Dynamic Safety-Distance is proposed as the core mechanism of the safety system. Through on-site experiments, indoor safety control and system operation’s evaluation are discussed, acknowledging both the advantages and limitations of the proposed safety system. This paper concludes with suggestions for further developments in camera-based OWPT safety incorporating the concept of Automatic Emission Control.

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Novel Inverter Topology for Electric Vehicle Inductive Wireless Power Transfer Charging

Hosseinzadeh,

Sarebanzadeh,

Kennel

et al. 2023

2023 IEEE Energy Conversion Congress and Exposition (ECCE)

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EMI Reduction Method for Wireless Power Transfer Systems With High Power Transfer Efficiency Using Frequency Split Phenomena

Cited by 17 publications

References 25 publications

Router for Wireless Power Packet Transmission: Design and Application to Intersystem Power Management

Router for Wireless Power Packet Transmission: Design and Application to Intersystem Power Management

Camera-Based Safety System for Optical Wireless Power Transmission Using Dynamic Safety-Distance

Novel Inverter Topology for Electric Vehicle Inductive Wireless Power Transfer Charging

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