박노아
(No-A Park)
1
최효상
(Hyo-Sang Choi)
3†
정인성
(In-Sung Jeong)
2
최혜원
(Hye-Won Choi)
2
-
(Dept. of Electrical and Electronical Engineering, Chosun University, Korea)
-
(Dept. of Electrical and Electronical Engineering, Chosun University, Korea)
Copyright © The Korean Institute of Electrical Engineers(KIEE)
Key words
Renosnace, Superconductor, S-paramter, S11
1. Introduction
The wireless power transmission (WPT) technology is the most desired technology these
days, when convenience and practicality are actively pursued. The need for the WPT
technology has been boosted by the advancement and distribution of various electronic
devices, such as smartphones, tablet PCs, and laptops, in particular. The WPT technology
has been researched on more actively ever since the research team led by Professor
Marine Soljacic at MIT in the United States proposed the magnetic-resonance WPT technology
in 2007. This technology transmits power using the resonance of the transmitter and
receiver coils. The technology is not harmful to the human body and enables multiple
charging, long-distance transmission, and high positional freedom between the transmitter
and receiver coils. Depending on the coil design, however, the inductance (L) and
capacitance (C) vary significantly, which may cause the efficiency to change sharply.
To address this problem, studies on the coil design are necessary.
The purpose of this study was to analyze the reactance of a WPT system by measuring
its inductance and capacitance according to the number of turns of the coil, and to
design coils with high efficiency by analyzing the correlation between the reactance
value and the S-parameter characteristics.
2. 본론
2.1 나나나
내용
(2)
표 1. 테이블
Table 1. 테이블
|
|
Standard*
|
Sunny Subjects
(N = 5)
|
Cloudy Subjects
(N = 5)
|
Subjects
|
|
Age
|
Twenty
|
26.0
±2.55
|
25.4
±3.05
|
25.56
±2.79
|
|
Height
|
175.8
±5.38
|
173.6
±2.30
|
173.6
±5.86
|
174.0
±4.24
|
|
Weight
|
75.6
±10.78
|
67.4
±5.55
|
69.2
±6.10
|
69.0
±5.43
|
|
BMI
|
18.5
~22.9
|
17.54
±2.42
|
20.04
±4.31
|
19.04
±3.66
|
|
Pulse
|
50
~100
|
68.0
±7.35
|
73.4
±8.32
|
69.67
±7.66
|
|
Blood
pressure
|
120/80
|
119.4
/75.0
(±7.23
/8.06)
|
126.2
/73.4
(±10.06
/7.67)
|
123
/74.22
(±9.53
/7.92)
|
N(person)：Number of subject.
* KOSIS(국가 통계 포털), 2013.
표 3식(1)그림. 5(8)
2.2 나나나
내용
(2)
표 1. 테이블
Table 1. 테이블
|
|
Standard*
|
Sunny Subjects
(N = 5)
|
Cloudy Subjects
(N = 5)
|
Subjects
|
|
Age
|
Twenty
|
26.0
±2.55
|
25.4
±3.05
|
25.56
±2.79
|
|
Height
|
175.8
±5.38
|
173.6
±2.30
|
173.6
±5.86
|
174.0
±4.24
|
|
Weight
|
75.6
±10.78
|
67.4
±5.55
|
69.2
±6.10
|
69.0
±5.43
|
|
BMI
|
18.5
~22.9
|
17.54
±2.42
|
20.04
±4.31
|
19.04
±3.66
|
|
Pulse
|
50
~100
|
68.0
±7.35
|
73.4
±8.32
|
69.67
±7.66
|
|
Blood
pressure
|
120/80
|
119.4
/75.0
(±7.23
/8.06)
|
126.2
/73.4
(±10.06
/7.67)
|
123
/74.22
(±9.53
/7.92)
|
N(person)：Number of subject.
* KOSIS(국가 통계 포털), 2013.
표 3식(1)그림. 5(8)
3. 본론
3.1 나나나
내용
(2)
표 1. 테이블
Table 1. 테이블
|
|
Standard*
|
Sunny Subjects
(N = 5)
|
Cloudy Subjects
(N = 5)
|
Subjects
|
|
Age
|
Twenty
|
26.0
±2.55
|
25.4
±3.05
|
25.56
±2.79
|
|
Height
|
175.8
±5.38
|
173.6
±2.30
|
173.6
±5.86
|
174.0
±4.24
|
|
Weight
|
75.6
±10.78
|
67.4
±5.55
|
69.2
±6.10
|
69.0
±5.43
|
|
BMI
|
18.5
~22.9
|
17.54
±2.42
|
20.04
±4.31
|
19.04
±3.66
|
|
Pulse
|
50
~100
|
68.0
±7.35
|
73.4
±8.32
|
69.67
±7.66
|
|
Blood
pressure
|
120/80
|
119.4
/75.0
(±7.23
/8.06)
|
126.2
/73.4
(±10.06
/7.67)
|
123
/74.22
(±9.53
/7.92)
|
N(person)：Number of subject.
* KOSIS(국가 통계 포털), 2013.
표 3식(1)그림. 5(8)
3.2 나나나
내용
(2)
표 1. 테이블
Table 1. 테이블
|
|
Standard*
|
Sunny Subjects
(N = 5)
|
Cloudy Subjects
(N = 5)
|
Subjects
|
|
Age
|
Twenty
|
26.0
±2.55
|
25.4
±3.05
|
25.56
±2.79
|
|
Height
|
175.8
±5.38
|
173.6
±2.30
|
173.6
±5.86
|
174.0
±4.24
|
|
Weight
|
75.6
±10.78
|
67.4
±5.55
|
69.2
±6.10
|
69.0
±5.43
|
|
BMI
|
18.5
~22.9
|
17.54
±2.42
|
20.04
±4.31
|
19.04
±3.66
|
|
Pulse
|
50
~100
|
68.0
±7.35
|
73.4
±8.32
|
69.67
±7.66
|
|
Blood
pressure
|
120/80
|
119.4
/75.0
(±7.23
/8.06)
|
126.2
/73.4
(±10.06
/7.67)
|
123
/74.22
(±9.53
/7.92)
|
N(person)：Number of subject.
* KOSIS(국가 통계 포털), 2013.
표 3식(1)그림. 5(8)
감사의 글
The preceding are the results of a study on the “Leaders in Industry-University Cooperation
+” Project supported by the Ministry of Education and the National Research Foundation
of Korea.
References
Ju-yeop Jang, “Design of Helical Coil for the Magnetic Resonance Wirless Power Transmission
System,” master's thesis, 2012. 이름, Oh PK, 년도, 제목, 출처, Vol. 권, No. 호, pp. 시작페이지-끝페이지
Ju-Yeop Jang, Jung Hur, Yong-Nam Kim, “Novel Mutual Inductance Formula for the Magnetic
Resonance Wireless Power Transmission System Using Helical,” The Journal of Korean
Institute of Electromagnetic Engineering and Science 23(6), 669-681 (13 pages), 2012.6
이름, Oh PK, 년도, 제목, 출처, Vol. 권, No. 호, pp. 시작페이지-끝페이지
Yohan Jang, Jaesoon Kwon, Jaesu Park, Jaehoon Choi, “Design of a High Efficiency Resonator
for Wireless Power Transfer,” The Journal of Korean Institute of Electromagnetic Engineering
and Science 22(9), 820-826 (7 pages) 2011.9 이름, Oh PK, 년도, 제목, 출처, Vol. 권, No. 호,
pp. 시작페이지-끝페이지
In-Sung Jeong, Byung-Ik Jung, Don-Sang You, and Hyo-Sang Choi, “Analysis of S -Parameters
in Magnetic Resonance WPT Using Superconducting Coils,” IEEE Transaction on Applied
Superconductivity, vol. 26, Issue. 3, April 2016. 이름, Oh PK, 년도, 제목, 출처, Vol. 권, No.
호, pp. 시작페이지-끝페이지
Andre Kurs, Aristeidis Karalis, Robert Moffatt, J. D. Joannopoulos, Peter Fisher,
and Marin Soljacic, “Wireless power transfer via strongly coupled magnetic resonances,”
Science, vol. 317, 2007 이름, Oh PK, 년도, 제목, 출처, Vol. 권, No. 호, pp. 시작페이지-끝페이지
저자소개
1991년 2월 14일 생
2016년 조선대 전기공학과 졸업(학사)
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1966년 2월 21일 생
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1994년 동 대학원 전기공학과 졸업(공학석사)
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1989년 10월 04일 생
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