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4,000원
원문정보
초록
영어
As wireless power transfer (WPT) technology using strongly coupled electromagnetic resonators is a recently explored technique to realize the large power delivery and storage without any cable or wire, this technique is required for diffusion of electric vehicles (EVs) since it makes possible a convenient charging system. Typically, since the normal conducting coils are used as a transmitting coil in the CPT system, there is limited to deliver the large power promptly in the contactless EV charging system. From this reason, we proposed the combination CPT technology with HTS transmitting antenna, it is called as, superconducting contactless power transfer for EV (SUWPT4EV) system. As the HTS coil has an enough current density, it can deliver a mass amount of electric energy in spite of a small scale antenna. The SUCPT4EV system has been expected as a noble option to improve the transfer efficiency of large electric power. Such a system consists of two resonator coils; HTS transmitting antenna (Tx) coil and normal conducting receiver (Rx) coil. Especially, the impedance matching for each resonator is a sensitive and plays an important role to improve transfer efficiency as well as delivery distance. In this study, we examined the improvement of transmission efficiency and properties for HTS and copper antennas, respectively, within 45 cm distance. Thus, we obtained improved transfer efficiency with HTS antenna over 15% compared with copper antenna. In addition, we achieved effective impedance matching conditions between HTS antenna and copper receiver at radio frequency (RF) power of 370 kHz.
목차
Abstract 1. 서론 2. 시스템의 구성 및 동작 메커니즘 3. 실험구성 및 결과 3.1. 실험구조 및 설계사양 3.2. 실험결과 4. 결론 EFERENCES
키워드
Electric vehicleelectromagnetic resonance couplingHTS transmitting coilsuperconducting contactless power transfer technology
저자
Y. D. Chung [ Suwon Science College, Gyeonggi-do, Korea ]
Corresponding author
Seong Woo Yim [ Korea Electric Power Corporation Research Institute, Daejeon, Korea ]