KR20090039080A - 병렬로 연결된 복수의 초전도 선재에 흐르는 전류의비접촉식 측정방법 - Google Patents
병렬로 연결된 복수의 초전도 선재에 흐르는 전류의비접촉식 측정방법 Download PDFInfo
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- KR20090039080A KR20090039080A KR1020070104504A KR20070104504A KR20090039080A KR 20090039080 A KR20090039080 A KR 20090039080A KR 1020070104504 A KR1020070104504 A KR 1020070104504A KR 20070104504 A KR20070104504 A KR 20070104504A KR 20090039080 A KR20090039080 A KR 20090039080A
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- Prior art keywords
- superconducting wires
- current
- superconducting
- hall sensors
- parallel
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- 238000000691 measurement method Methods 0.000 title claims abstract description 6
- 239000002887 superconductor Substances 0.000 title abstract description 3
- 239000011159 matrix material Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 13
- 238000012790 confirmation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
- G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
Claims (4)
- 병렬로 연결된 복수의 초전도 선재에 흐르는 전류의 비접촉식 측정방법에 있어서,(a) 상기 각 초전도 선재 주변에 형성되는 자기장에 기초하여 전압값을 측정하기 위한 복수의 홀 센서를 배치시키는 단계와;(b) 상기 각 홀 센서에 의해 측정되는 상기 전압값들과, 상기 각 초전도 선재에 흐르는 전류값과, 상기 전압값과 상기 전류값 간의 관계를 정의하기 위한 복수의 변수로 구성된 변수행렬 간의 행렬관계식을 설정하는 단계와;(c) 상기 복수의 초전도 선재에 기 설정된 설정 전류값들을 복수 회 인가하여 상기 복수의 홀 센서를 통해 상기 측정 전압값들을 측정하는 단계와;(d) 상기 설정 전류값들 및 상기 측정 전압값들을 상기 행렬관계식에 대입하여 상기 변수행렬의 각 변수의 값을 산출하는 단계와;(e) 상기 각 초전도 선재에 미지의 전류가 흐르는 상태에서 상기 복수의 홀 센서에 의해 측정된 복수의 미지 전압값과, 상기 (d) 단계에서 산출된 상기 변수행렬을 행렬관계식에 대입하여 상기 각 초전도 선재에 흐르는 상기 미지의 전류의 세기를 산출하는 단계를 포함하는 것을 특징으로 하는 비접촉식 측정방법.
- 제2항에 있어서,상기 복수의 초전도 선재는 4 가닥의 초전도 선재가 진행 방향에 대한 단면 방향으로 상, 하, 좌, 우 배치되며;상기 (a) 단계에서는 4개의 상기 홀 센서가 상, 하, 좌, 우로 배치된 상기 4 가닥의 초전도 선재에 각각 하나씩 인접하게 배치되는 것을 특징으로 하는 비접촉식 측정방법.
- 제2항에 있어서,상기 복수의 초전도 선재는 상호 꼬여 형성된 뢰벨바(Roebel bar) 형태로 마련되며;상기 (a) 단계에서는 상기 복수의 홀 센서는 상기 뢰벨바(Roebel bar) 형태의 상기 복수의 초전도 선재의 외측에 상기 각 초전도 선재에 인접하게 배치되는 것을 특징으로 하는 비접촉식 측정방법.
Priority Applications (2)
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KR1020070104504A KR100934448B1 (ko) | 2007-10-17 | 2007-10-17 | 병렬로 연결된 복수의 초전도 선재에 흐르는 전류의비접촉식 측정방법 |
US12/043,802 US7920977B2 (en) | 2007-10-17 | 2008-03-06 | Noncontact measurement method of currents on superconductive wires connected in parallel |
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KR1020070104504A KR100934448B1 (ko) | 2007-10-17 | 2007-10-17 | 병렬로 연결된 복수의 초전도 선재에 흐르는 전류의비접촉식 측정방법 |
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Publication Number | Publication Date |
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KR20090039080A true KR20090039080A (ko) | 2009-04-22 |
KR100934448B1 KR100934448B1 (ko) | 2009-12-29 |
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KR1020070104504A KR100934448B1 (ko) | 2007-10-17 | 2007-10-17 | 병렬로 연결된 복수의 초전도 선재에 흐르는 전류의비접촉식 측정방법 |
Country Status (2)
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US (1) | US7920977B2 (ko) |
KR (1) | KR100934448B1 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8680845B2 (en) | 2011-02-09 | 2014-03-25 | International Business Machines Corporation | Non-contact current and voltage sensor |
US9063184B2 (en) | 2011-02-09 | 2015-06-23 | International Business Machines Corporation | Non-contact current-sensing and voltage-sensing clamp |
US9588160B2 (en) | 2011-02-09 | 2017-03-07 | International Business Machines Corporation | Wire manager with current and voltage sensing |
US8508212B2 (en) | 2011-06-14 | 2013-08-13 | International Business Machines Corporation | Calibration of non-contact current sensors |
US9000752B2 (en) | 2011-06-14 | 2015-04-07 | International Business Machines Corporation | Multi-conductor cable current and voltage sensors |
US8493054B2 (en) | 2011-06-14 | 2013-07-23 | International Business Machines Corporation | Calibration of non-contact voltage sensors |
US9007077B2 (en) | 2012-08-28 | 2015-04-14 | International Business Machines Corporation | Flexible current and voltage sensor |
US9310397B2 (en) | 2013-01-29 | 2016-04-12 | International Business Machines Corporation | Multi-branch current/voltage sensor array |
GB2513866A (en) * | 2013-05-07 | 2014-11-12 | Sevcon Ltd | Current transducer |
CN106872759B (zh) * | 2017-02-24 | 2019-04-05 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | 电流路径检测装置以及电流路径检测方法 |
CN108254622B (zh) * | 2017-12-06 | 2020-07-28 | 上海超导科技股份有限公司 | 高温超导带材测试装置及测试方法 |
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US6731083B2 (en) * | 1998-06-02 | 2004-05-04 | Switched Reluctance Drives, Ltd. | Flux feedback control system |
JP2002526781A (ja) * | 1998-10-05 | 2002-08-20 | ユニヴァーシティ オブ メリーランド | 空間周波数フィルタリング及びマスキングを使用する映像化方法及び装置 |
JP3841248B2 (ja) | 1999-03-09 | 2006-11-01 | 関西電力株式会社 | 地絡抑制システムおよび地絡抑制方法 |
KR100473798B1 (ko) * | 2002-02-20 | 2005-03-08 | 명지대학교 | 전력 계통의 1선 지락 고장 지점 검출 방법 |
KR20050098136A (ko) * | 2004-04-06 | 2005-10-11 | 엘지전자 주식회사 | 자기 센서를 이용한 전류 분포 측정 장치 및 그 측정 방법 |
FR2872580B1 (fr) * | 2004-06-30 | 2006-09-01 | Valeo Equip Electr Moteur | Procede de mesure du courant electrique dans une pluralite de conducteurs |
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2008
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Publication number | Publication date |
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US20090105973A1 (en) | 2009-04-23 |
KR100934448B1 (ko) | 2009-12-29 |
US7920977B2 (en) | 2011-04-05 |
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