Hybrid loop-array design for high efficiency and low EMF level in wireless high power transfer = 대전력 무선충전 시스템에서 높은 효율과 낮은 전자계를 위한 하이브리드 루프 코일 설계

Current wireless power transfer(WPT) technology is widely used for various applications because of convenience and safety. One of those emerging application is high power charging system such as electric vehicle, bus, and train. However, unlike previous WPT system, transferring high power wirelessly causes efficiency and EMF issues. The fundamental cause of these issues is switching frequency limitation of power transistor in inverter, so several solutions including using magnetic field forming, are proposed for settling the problem. The previous solutions have fragmentarily resolved the weakness of high power charging system, but they did not make high power charging system have high efficiency and low EMF level simultaneously. Our research has proposed the solution, which is hybrid loop-array, for high power charging system with high efficiency and low EMF level simultaneously, and we analytically propose the design procedure for maximum efficiency and minimum EMF level. Moreover, for the validity of the proposed hybrid loop-array, we have proved the same tendency with simulation result and measurement result. With the proposed design process and equations, hybrid loop-array can be designed for other WPT system with high efficiency and low EMF.
Advisors
Kim, Jounghoresearcher김정호researcher
Publisher
한국과학기술원
Issue Date
2016
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 미래자동차학제전공, 2016.8 ,[iv, 44 p. :]

Keywords

Wireless high power transfer; hybrid loop-array; electromagnetic field; wireless power transfer; electromagnetic compatibility; 무선 충전 시스템; 하이브리드 루프 코일; 대전력 무선 충전; 전자계; 전자기 적합성

URI
http://hdl.handle.net/10203/221382
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=663339&flag=t
Appears in Collection
PD-Theses_Master(석사논문)
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