KR100915712B1 - 전력기기의 부분방전위치 검출시스템 및 방전위치 검출방법 - Google Patents
전력기기의 부분방전위치 검출시스템 및 방전위치 검출방법Info
- Publication number
- KR100915712B1 KR100915712B1 KR1020070066068A KR20070066068A KR100915712B1 KR 100915712 B1 KR100915712 B1 KR 100915712B1 KR 1020070066068 A KR1020070066068 A KR 1020070066068A KR 20070066068 A KR20070066068 A KR 20070066068A KR 100915712 B1 KR100915712 B1 KR 100915712B1
- Authority
- KR
- South Korea
- Prior art keywords
- partial discharge
- transmission mode
- discharge position
- signal
- frequency
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 57
- 230000004907 flux Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 15
- 238000004364 calculation method Methods 0.000 description 7
- 230000000644 propagated effect Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/129—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of components or parts made of semiconducting materials; of LV components or parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
- Locating Faults (AREA)
Abstract
Description
Claims (9)
- 삭제
- 삭제
- 삭제
- 삭제
- 부분방전 신호의 파형을 측정하는 단계;상기 측정된 파형을 변환하여 전송모드별 신호를 분리하는 단계;주파수를 이용하여 전송모드별 군속도를 계산하는 단계;두 전송모드의 군속도 및 두 전송모드 간의 도착시간의 차를 이용하여 부분방전 위치를 계산하는 단계를 포함하는 부분방전위치 검출방법.
- 청구항 5에 있어서,상기 신호를 분리하는 단계는 시간 및 주파수를 동시에 분석하는 기법을 적용하여 상기 전송모드별 신호를 분리하는 것을 특징으로 하는 부분방전위치 검출방법.
- 청구항 6에서,상기 기법은 단구간 퓨리에 변환(Short Term Furier Transform; STFT) 또는 웨이브렛 변환(wavelet transform)인 것을 특징으로 하는 부분방전위치 검출방법.
- 청구항 5에 있어서,상기 군속도(vg)의 계산식은 다음 수학식 1인 것을 특징으로 하는 부분방전위치 검출방법.[수학식 1]여기서, C는 광속, fc는 전송모드의 차단주파수, f는 해당 전송모드의 도착 시점의 주파수이다.
- 청구항 8에 있어서,상기 부분 방전 위치를 계산하는 단계는:제 1 전송모드 및 제 2 전송모드를 선택하는 단계;제 1 전송모드 및 제 2 전송모드 간의 도착시간의 차를 계산하는 단계; 및상기 도착시간의 차와 상기 제 1 전송모드 및 상기 제 2 전송모드의 센서에 도착시 군속도를 다음 수학식 3에 대입하여 부분방전센서로부터 상기 부분방전위치의 거리를 계산하는 단계를 포함하는 것을 특징으로 하는 부분방전위치 검출방법.[수학식 3]여기서, L은 부분방전위치까지의 거리, vg1 및 vg2 는 각각 제 1 전송모드 및 제 2 전송모드의 군속도, △t는 상기 도착시간의 차이다.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070066068A KR100915712B1 (ko) | 2007-07-02 | 2007-07-02 | 전력기기의 부분방전위치 검출시스템 및 방전위치 검출방법 |
GB1000898.5A GB2463611B (en) | 2007-07-02 | 2008-06-10 | System and method for detecting partial discharge position |
JP2010514604A JP5165058B2 (ja) | 2007-07-02 | 2008-06-10 | 電力器機の部分放電位置検出システム及び放電位置検出方法 |
PCT/KR2008/003229 WO2009005223A1 (en) | 2007-07-02 | 2008-06-10 | System and method for detecting partial discharge position |
CN2008800230928A CN101743484B (zh) | 2007-07-02 | 2008-06-10 | 检测局部放电位置的系统和方法 |
DE112008001713.1T DE112008001713B4 (de) | 2007-07-02 | 2008-06-10 | System und Verfahren zum Ermitteln der Position einer Teilentladung in einer elektrischen Einrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070066068A KR100915712B1 (ko) | 2007-07-02 | 2007-07-02 | 전력기기의 부분방전위치 검출시스템 및 방전위치 검출방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090002588A KR20090002588A (ko) | 2009-01-09 |
KR100915712B1 true KR100915712B1 (ko) | 2009-09-04 |
Family
ID=40226228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070066068A KR100915712B1 (ko) | 2007-07-02 | 2007-07-02 | 전력기기의 부분방전위치 검출시스템 및 방전위치 검출방법 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP5165058B2 (ko) |
KR (1) | KR100915712B1 (ko) |
CN (1) | CN101743484B (ko) |
DE (1) | DE112008001713B4 (ko) |
GB (1) | GB2463611B (ko) |
WO (1) | WO2009005223A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101525329B1 (ko) * | 2013-12-30 | 2015-06-03 | 한국원자력연구원 | 모드분리기법을 이용한 매설배관의 누설위치 추정방법 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1394479B1 (it) | 2009-05-29 | 2012-07-05 | Techimp Technologies S A Ora Techimp Technologies S R L | Strumento e procedimento di rilevazione di scariche elettriche parziali in un apparato elettrico. |
CN102841294B (zh) * | 2011-12-23 | 2015-02-11 | 湖北省电力公司电力科学研究院 | 电气设备特高频局部放电检测中信号与干扰的鉴别方法 |
FR2992733B1 (fr) * | 2012-06-28 | 2014-08-08 | Labinal | Dispositif et procede de surveillance d'un reseau electrique |
CN103675610B (zh) * | 2013-09-29 | 2016-06-15 | 国家电网公司 | 局部放电在线检测中的特征因子提取方法 |
US20150142344A1 (en) * | 2013-10-18 | 2015-05-21 | Utilx Corporation | Method and apparatus for measuring partial discharge charge value in frequency domain |
WO2016079869A1 (ja) * | 2014-11-21 | 2016-05-26 | 三菱電機株式会社 | 部分放電位置標定装置 |
CN106249114A (zh) * | 2016-08-23 | 2016-12-21 | 上海华乘智能设备有限公司 | 基于wifi传输的多功能带电检测装置及方法 |
CN112595934B (zh) * | 2020-10-14 | 2024-05-17 | 浙江大有实业有限公司杭州科技发展分公司 | 一种高压电缆局部放电信号强度的测量方法及装置 |
CN113295933A (zh) * | 2021-05-25 | 2021-08-24 | 云南电网有限责任公司电力科学研究院 | 一种雷电电磁波传播的群速度提取方法 |
CN118130983B (zh) * | 2024-05-08 | 2024-07-09 | 山东信友电器有限公司 | 一种配电柜异常检测方法 |
Citations (4)
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KR0153253B1 (ko) * | 1989-06-14 | 1998-12-15 | 미다 가쓰시게 | 가스절연 전기 기기의 이상위치 기록장치 및 방법 |
JPH11271382A (ja) * | 1998-01-26 | 1999-10-08 | Mitsubishi Electric Corp | 導電装置の部分放電発生位置検出装置及び部分放電強度検出装置 |
JP2000102159A (ja) * | 1998-09-21 | 2000-04-07 | Chubu Electric Power Co Inc | ガス絶縁電気装置の異常診断方法及びその装置 |
KR100665879B1 (ko) * | 2004-12-23 | 2007-01-09 | 한국전기연구원 | 전력기기의 부분 방전 검출 및 처리 장치 |
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US6178386B1 (en) * | 1998-08-14 | 2001-01-23 | The University Of Hartford | Method and apparatus for fault detection |
US6161077A (en) * | 1999-01-05 | 2000-12-12 | Hubbell Incorporated | Partial discharge site location system for determining the position of faults in a high voltage cable |
CN1230684C (zh) * | 2003-12-18 | 2005-12-07 | 西安交通大学 | 气体绝缘变电站高频宽带局部放电在线监测方法 |
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-
2007
- 2007-07-02 KR KR1020070066068A patent/KR100915712B1/ko active IP Right Grant
-
2008
- 2008-06-10 WO PCT/KR2008/003229 patent/WO2009005223A1/en active Application Filing
- 2008-06-10 GB GB1000898.5A patent/GB2463611B/en not_active Expired - Fee Related
- 2008-06-10 JP JP2010514604A patent/JP5165058B2/ja not_active Expired - Fee Related
- 2008-06-10 CN CN2008800230928A patent/CN101743484B/zh not_active Expired - Fee Related
- 2008-06-10 DE DE112008001713.1T patent/DE112008001713B4/de not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR0153253B1 (ko) * | 1989-06-14 | 1998-12-15 | 미다 가쓰시게 | 가스절연 전기 기기의 이상위치 기록장치 및 방법 |
JPH11271382A (ja) * | 1998-01-26 | 1999-10-08 | Mitsubishi Electric Corp | 導電装置の部分放電発生位置検出装置及び部分放電強度検出装置 |
JP2000102159A (ja) * | 1998-09-21 | 2000-04-07 | Chubu Electric Power Co Inc | ガス絶縁電気装置の異常診断方法及びその装置 |
KR100665879B1 (ko) * | 2004-12-23 | 2007-01-09 | 한국전기연구원 | 전력기기의 부분 방전 검출 및 처리 장치 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101525329B1 (ko) * | 2013-12-30 | 2015-06-03 | 한국원자력연구원 | 모드분리기법을 이용한 매설배관의 누설위치 추정방법 |
Also Published As
Publication number | Publication date |
---|---|
WO2009005223A1 (en) | 2009-01-08 |
GB201000898D0 (en) | 2010-03-10 |
DE112008001713T5 (de) | 2010-06-10 |
GB2463611A (en) | 2010-03-24 |
JP2010531454A (ja) | 2010-09-24 |
CN101743484B (zh) | 2012-11-21 |
DE112008001713B4 (de) | 2017-02-16 |
JP5165058B2 (ja) | 2013-03-21 |
GB2463611B (en) | 2012-10-03 |
KR20090002588A (ko) | 2009-01-09 |
CN101743484A (zh) | 2010-06-16 |
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