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DYNAMIC CAPACITIVE WIRELESS POWER TRANSFER SYSTEMS
2020202 pages ; Dynamic wireless power transfer (WPT) systems that effectively charge electric vehicles (EVs) while in motion can reduce EV costs, eliminate charging time, and enable unlimited range. This thesis introduces innovative architectures, circuit topologies, design techniques, and control methodologies for large air-gap kW-scale high power ...
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High-frequency capacitive wireless power transfer technologies
Journal of Power Electronics, 2021The technical maturity of high-frequency capacitive wireless power transfer (CWPT) technologies has reached a point where they can be industrially introduced on a large scale. This paper will present the trends and the chronological efforts to improve and enhance CWPT technologies that are currently gaining interest and spotlight.
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Inductive & Capacitive Wireless Power Transfer System
2018 7th International Conference on Computer and Communication Engineering (ICCCE), 2018This paper studied the implementation of wireless power transfer through using a mix of inductive and capacitive coupling techniqbes to overcome the disadvantages of wired power transfer. The topology for the prototype of the combined system is based on LC-compensated topology, the combination of LCC-compensated topology of inductive power transfer ...
Mohamad Syafiq Mazli +8 more
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Hybrid control of capacitive power transfer system for coupling capacitance variation
Electrical Engineering, 2020Focusing on the output voltage reduction caused by variation of the equivalent coupling capacitance in capacitive power transfer (CPT) system, this paper proposes a hybrid control strategy to achieve constant output voltage with the variation. The hybrid automata model is introduced for the cascaded CPT system considering the characteristics of higher ...
Yugang Su +5 more
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LQG control of capacitive power transfer system
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), 2017This paper presents the design and simulation of an auto-tuning capacitive power transfer (CPT) system based on Class-E converter approach. The reason of selecting Class-E converter is due to the remarkably high efficiency that it can achieve. However, the load's variation affects the output voltage of Class-E converter significantly and increases the ...
Kai Lu, Sing Kiong Nguang
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2010
Abstract : The simplicity and low cost of capacitive interfaces makes them very attractive for wireless charging stations and galvanically isolated power supplies. Major benefits include low electromagnetic radiation and the amenability of combined power and data transfer over the same interface.
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Abstract : The simplicity and low cost of capacitive interfaces makes them very attractive for wireless charging stations and galvanically isolated power supplies. Major benefits include low electromagnetic radiation and the amenability of combined power and data transfer over the same interface.
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High-power-transfer-density capacitive wireless power transfer system for electric vehicle charging
2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017This paper introduces a large air-gap capacitive wireless power transfer (WPT) system for electric vehicle charging that achieves a power transfer density exceeding the state-of-the-art by more than a factor of four. This high power transfer density is achieved by operating at a high switching frequency (6.78 MHz), combined with an innovative approach ...
Sreyam Sinha +5 more
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A very-high-power-transfer-density GaN-based capacitive wireless power transfer system
2017 IEEE 5th Workshop on Wide Bandgap Power Devices and Applications (WiPDA), 2017This paper introduces a very-high-power-transfer-density GaN-based capacitive wireless power transfer (WPT) system, suitable as one module of a multi-modular WPT system for charging of electric forklifts. This capacitive WPT system achieves very high power transfer density by operating at a high switching frequency (6.78 MHz) using a GaN-based inverter,
Sreyam Sinha +3 more
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High Power Capacitive Power Transfer for Electric Aircraft Charging Application
2019 IEEE National Aerospace and Electronics Conference (NAECON), 2019This paper proposes to use the capacitive power transfer (CPT) technology to achieve high power charging of the electric aircraft. The total charging system structure is presented, including the power electronics converter, the capacitive coupler structure, and the compensation circuit.
Hua Zhang +4 more
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A dynamic capacitive power transfer system with reduced power pulsation
2016 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), 2016This paper proposes a dynamic capacitive power transfer (CPT) system which utilizes electric fields to transfer power to a moving receiver. The transmitter is a long track, consisting of a pair of aluminum plates. One important property of this transmitter structure is reducing the power pulsations at the receiver.
Fei Lu +4 more
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