JP4471628B2 - 発電機界磁巻線の速度感知界磁地絡検出モード - Google Patents
発電機界磁巻線の速度感知界磁地絡検出モード Download PDFInfo
- Publication number
- JP4471628B2 JP4471628B2 JP2003377686A JP2003377686A JP4471628B2 JP 4471628 B2 JP4471628 B2 JP 4471628B2 JP 2003377686 A JP2003377686 A JP 2003377686A JP 2003377686 A JP2003377686 A JP 2003377686A JP 4471628 B2 JP4471628 B2 JP 4471628B2
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- JP
- Japan
- Prior art keywords
- rotor
- ground fault
- speed
- magnetic flux
- location
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 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
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
-
- 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
- G01R31/34—Testing dynamo-electric machines
- G01R31/346—Testing of armature or field windings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Synchronous Machinery (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Control Of Eletrric Generators (AREA)
Description
Claims (11)
- 回転子(12)及び励磁回路(48)を有する電磁同期機械(10)の界磁巻線(16)における速度感知地絡状態(38)を場所特定する方法において、
a.前記回転子を加速し(43)且つ前記励磁回路を動作させている間に、前記界磁巻線により発生される磁束を感知すること(30)と、
b.前記回転子の加速中に起こる磁束の周期的収差を検出すること(46)と、
c.前記加速中に検出された磁束の収差に基づいて、周期的収差に対応する前記界磁巻線における位置を判定し、その位置を速度感知地絡状態の場所として識別すること(50)
から成る方法。 - 周期的収差が現れ始める閾値速度まで前記回転子が加速される前に、常規コイルスロット漏れ電圧に起因する磁束変化を識別すること(44)を更に含む請求項1記載の方法。
- 磁束の周期的収差を検出する前に前記回転子が静止している間に前記界磁巻線における地絡状態の有無を判定する過程(38)を更に含む請求項1記載の方法。
- 地絡状態の場所の識別は、速度感知地絡状態に対応するコイルスロット及び磁極の場所(74)の識別を含む請求項1記載の方法。
- コイル巻線(16)を含む回転子(12)と、電機子巻線(18)を含む固定子(14)とを有する電磁同期機械(10)における速度感知地絡状態(38)の場所を特定する方法において、
a.回転歯車で前記回転子を加速し(43)、前記回転子のコイル巻線に励磁を加えること(42)と、
b.スロット磁束漏れを感知する磁束プローブ計器からの信号を監視すること(44)と、
c.前記磁束プローブ計器からの信号における、前記回転子の1回転ごとに一度現れる収差であって該回転子の加速中に前記信号から収差が検出されなかった回転速度よりも早い回転速度において検出される収差を検出すること(46)と、
d.前記磁束プローブ計器からの信号の収差を前記回転子の場所と相関させること(50)と、
e.収差と相関された前記回転子の場所を速度感知地絡状態の発生源として識別すること(52)
から成る方法。 - 前記回転子の場所は回転子のコイル及び磁極の位置(74)により識別される請求項5記載の方法。
- 信号の収差は前記回転子が加速された後に起こり、前記回転子が停止されるか又は遅い回転速度であるときには存在しない(38)請求項5記載の方法。
- 速度感知地絡状態を検出するために前記回転子を加速する前に、静止状態で非速度感知地絡状態に関して前記回転子を試験すること(36)を更に含む請求項5記載の方法。
- 過程(a)から(e)を実行する前に、前記電磁同期機械が動作している間に地絡状態を感知すること(32)と、前記回転子を停止させること(34)と、地絡状態に関して前記電機子巻線を検査すること(36)と、前記回転子が静止しているときに地絡状態が存在しないことを判定すること(38)とを更に含む請求項5記載の方法。
- 過程(a)から(e)を実行する前に、地絡状態に関して前記回転子の励磁システムを試験すること(48)を更に含む請求項5記載の方法。
- 前記回転子は定格速度を有し、該回転子が該定格速度まで加速する間に速度誘起地絡が起こらない場合には、励磁システムで地絡が起こっていると判断し、試験手続きを励磁システムに集中させる(48)ことを特徴とする、請求項1乃至10のいずれか1項に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/289,399 US6798210B2 (en) | 2002-11-07 | 2002-11-07 | Speed sensitive field ground detection mode for a generator field winding |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004159496A JP2004159496A (ja) | 2004-06-03 |
JP4471628B2 true JP4471628B2 (ja) | 2010-06-02 |
Family
ID=32107635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003377686A Expired - Lifetime JP4471628B2 (ja) | 2002-11-07 | 2003-11-07 | 発電機界磁巻線の速度感知界磁地絡検出モード |
Country Status (7)
Country | Link |
---|---|
US (1) | US6798210B2 (ja) |
EP (1) | EP1418655A2 (ja) |
JP (1) | JP4471628B2 (ja) |
KR (1) | KR100847931B1 (ja) |
CN (1) | CN100449323C (ja) |
MX (1) | MXPA03010012A (ja) |
RU (1) | RU2003132650A (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6798112B1 (en) * | 2003-04-25 | 2004-09-28 | General Motors Corporation | Armature ground locating test process and equipment |
US7042229B2 (en) * | 2004-03-31 | 2006-05-09 | General Electric Company | System and method for on line monitoring of insulation condition for DC machines |
US7098560B2 (en) * | 2004-05-27 | 2006-08-29 | Siemens Power Generation, Inc. | Flux probe for electric generator |
US7344202B2 (en) * | 2005-05-11 | 2008-03-18 | General Electric Company | System and method for dealing with ground fault conditions that can arise in an electrical propulsion system |
US7282923B2 (en) * | 2005-09-20 | 2007-10-16 | General Electric Company | Systems and methods for triggering a partial discharge acquisition |
US7411404B2 (en) * | 2006-12-08 | 2008-08-12 | General Electric Company | Apparatus, system, and method for detecting an electrical short condition in a dynamoelectric machine |
US7936542B2 (en) * | 2007-03-27 | 2011-05-03 | Siemens Energy, Inc. | Electronic ground detection apparatus for use on ground detector ring of power generating system |
ZA200903757B (en) * | 2008-07-29 | 2010-04-28 | Eskom Holdings Pty Ltd | Stray-flux detection and analysis system |
TWI412724B (zh) * | 2009-09-21 | 2013-10-21 | Univ Nat Changhua Education | A rotation sensing device and a generator unit with rotational sensing |
CN101799509B (zh) * | 2010-03-24 | 2012-11-14 | 上海奥波电子有限公司 | 一种用于电机电枢绕组的检测***和方法 |
US8781765B2 (en) * | 2011-04-11 | 2014-07-15 | General Electric Company | Online monitoring system and method to identify shorted turns in a field winding of a rotor |
US8903664B2 (en) | 2011-06-22 | 2014-12-02 | General Electric Company | System and method for use in monitoring synchronous machines |
US8978239B2 (en) | 2013-01-09 | 2015-03-17 | General Electric Company | Field coil winding assembly |
EP2851698B1 (en) * | 2013-09-18 | 2021-07-21 | ABB Schweiz AG | A method for detecting a fault in an electrical machine |
GB201404226D0 (en) * | 2014-03-11 | 2014-04-23 | Rolls Royce Plc | Fault detection in induction machines |
EP3045924A1 (de) | 2015-01-14 | 2016-07-20 | Siemens Aktiengesellschaft | Verfahren zum Detektieren von Windungsschlüssen |
US10739405B2 (en) * | 2016-04-11 | 2020-08-11 | General Electric Company | Dynamoelectric machine fault monitoring system, computer program product and related methods |
WO2019217634A1 (en) | 2018-05-09 | 2019-11-14 | Abb Schweiz Ag | Valve position control |
CN109212374B (zh) * | 2018-09-14 | 2021-03-26 | 中国科学院电工研究所 | 一种整数槽绕组永磁电机的绕组匝间短路故障检测装置及方法 |
CN113678007B (zh) * | 2019-04-12 | 2024-06-04 | 三菱电机株式会社 | 短路检测装置以及短路检测方法 |
KR102425497B1 (ko) * | 2020-10-28 | 2022-07-27 | 주식회사 위드피에스 | 동기 발전기, 동기 발전기 모니터링 장치 및 방법, 컴퓨터 판독 가능한 기록 매체 및 컴퓨터 프로그램 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3506914A (en) * | 1968-07-01 | 1970-04-14 | Gen Electric | Method and apparatus for detecting rotor flux variations in the air gap of a dynamoelectric machine |
US3727123A (en) * | 1972-02-22 | 1973-04-10 | Electric Machinery Mfg Co | Brushless generator field ground detection system |
US4658213A (en) * | 1984-11-16 | 1987-04-14 | Finley Stanton M | Method and apparatus for testing direct current motors and generators, electromagnetic devices, and the like |
US4667148A (en) | 1985-06-26 | 1987-05-19 | General Electric Company | Generator air-gap flux probe for detecting shorted rotor turns |
US4808932A (en) * | 1987-05-15 | 1989-02-28 | Electric Power Research Institute, Inc. | Rotor fault and location detector for induction motors |
US4864242A (en) * | 1988-09-06 | 1989-09-05 | Westinghouse Electric Corp. | Automatic field winding ground detector and locator |
JP3297159B2 (ja) * | 1993-09-14 | 2002-07-02 | 東芝キヤリア株式会社 | 直流ブラシレスモータの駆動装置およびその良否識別方法 |
JP2001289923A (ja) * | 2000-04-05 | 2001-10-19 | Seiko Instruments Inc | 小型スピンドルモータの検査装置 |
US6466009B1 (en) * | 2001-06-06 | 2002-10-15 | The United States Of America As Represented By The Secretary Of The Interior | Flexible printed circuit magnetic flux probe |
-
2002
- 2002-11-07 US US10/289,399 patent/US6798210B2/en not_active Expired - Lifetime
-
2003
- 2003-10-31 MX MXPA03010012A patent/MXPA03010012A/es unknown
- 2003-11-05 EP EP03257004A patent/EP1418655A2/en not_active Withdrawn
- 2003-11-06 RU RU2003132650/09A patent/RU2003132650A/ru not_active Application Discontinuation
- 2003-11-06 KR KR1020030078306A patent/KR100847931B1/ko not_active IP Right Cessation
- 2003-11-07 JP JP2003377686A patent/JP4471628B2/ja not_active Expired - Lifetime
- 2003-11-07 CN CNB2003101148205A patent/CN100449323C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2004159496A (ja) | 2004-06-03 |
EP1418655A2 (en) | 2004-05-12 |
MXPA03010012A (es) | 2005-04-19 |
CN100449323C (zh) | 2009-01-07 |
US6798210B2 (en) | 2004-09-28 |
KR100847931B1 (ko) | 2008-07-22 |
CN1532556A (zh) | 2004-09-29 |
US20040090228A1 (en) | 2004-05-13 |
KR20040041035A (ko) | 2004-05-13 |
RU2003132650A (ru) | 2005-04-20 |
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