JP2011030416A - ステータ巻線終端部品監視システム - Google Patents
ステータ巻線終端部品監視システム Download PDFInfo
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- JP2011030416A JP2011030416A JP2010161185A JP2010161185A JP2011030416A JP 2011030416 A JP2011030416 A JP 2011030416A JP 2010161185 A JP2010161185 A JP 2010161185A JP 2010161185 A JP2010161185 A JP 2010161185A JP 2011030416 A JP2011030416 A JP 2011030416A
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0805—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for synchronous motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/22—Optical devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
- H02K3/505—Fastening of winding heads, equalising connectors, or connections thereto for large machine windings, e.g. bar windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
Abstract
【解決手段】検知ケーブルは、巻線終端部品のうちの2つに固定された2つの固定点(63)と、ステータ巻線終端部品のうちの2つ又はそれ以上の間の相対変位を測定するためのセンサとを含む。別の実施形態において提供されるステータ巻線終端及び接続リング監視システムは、光ファイバー検知ケーブルを含む。光ファイバー検知ケーブルは、各々が接続リングのうちの2つの間の固定点によって固定されるセンサを含む。ステータ巻線終端及び接続リング監視システムは更に、ステータ巻線終端及び接続リング監視システムは更に、センサに光を供給する光源と、センサから通過又は反射した光を受け取る光検出器と、光検出器から検出された光を示す信号を受け取り、該信号を用いて接続リングの何れか間の相対変位が許容範囲外にあるか否かを判断するためのプロセッサとを備える。
【選択図】 図6
Description
検知システム48は更に、光ファイバーに光を伝送するための光源56と、光ファイバー(図4)から伝送又は反射される光を検出し、且つ検出された光の波長変化を監視するための検出器モジュール58とを備える。1つの実施形態において、検知システムは更に、検出器モジュール58から波長変化を受け取り、状態監視、機械保護、メンテナンススケジュール、又は回転機械10の制御に使用される計算を実施するためのプロセッサ60を備える。
2つの隣接する固定点63間のセンサの波長変化は、2つの平行接続リング40の相対変位を示す。1つの実施形態において、測定部62は、1つの相互接続導体44(図3)に隣接するよう配列される。
λB(i)= 2neff Λ(i) 式(1)
ここで、「neff」は、ファイバーコアの有効屈折率であり、「Λ(i)」は、対応する数(i)のグレーティング変調構造の周期性である。特定の実施形態において、異なるブラッグ格子54は異なる変調周期を有し、すなわち、ブラッグ格子54は、図7に示すように異なる中心波長を有する。従って、検出器モジュール44は、ブラッグ格子54からそれぞれ反射されるスペクトルを識別することができる。よって、追加の配線を必要とせずに同じ検知ケーブル50上のより多くの測定点(ブラッグ格子)を配列することは有利である。
ε(t) = d/L 式(3)
ここで、「d」は合計相対変位、「L」は巻線終端部品間の距離である。特定の実施形態において、
ファイバーブラッグ格子54により測定される最大歪み(εmax)は約5000uεである。50ミリメートル(L=50ミリメートル)で分離される巻線終端部品では、例えば、測定できる最大変位(dmax)は、式(3)により0.25mmである。図8から12に記載された実施形態は、最大変位測定範囲を増加している。
ε(t)≒cos(θ)d/L 式(4)
45度の角度、巻線終端部品間の50mm、及びファイバーブラッグ格子センサに作用する5000ue最大歪みでは、最大測定可能変位は、0.25mmから0.35mmまで増大する。従って、より大きな測定レンジ(L)を得ることができる。ファイバーへの歪みは、式(5)で表すことができるファイバー歪みセンサの中心波長シフト(Δλ)を引き起こす。
12 ロータ
14 ステータ
16 フレーム
18 ステータコア
20 ステータ巻線
24 ロータ端部ベル
25 スロット
26,28 前方及び後方端部ofステータコア
30 ギャップ
32 導電バー
34 ループ
36,38 上部及び下部バー
40 接続リング
41 コア端部フランジ
42 接続リングスペーサ
43 軸方向支持体
44 相互接続導体
45 拘束結合部
46 端子
47 タイ
48 FBG検知システム
49 孔
50 FBG検知ケーブル
52 ファイバー
54 ブラッグ格子
56 光源
58 検出器モジュール
60 プロセッサ
62 測定部分
63 固定点
64 シース管体
66 ポリマー材料
68 コーティング層
70 支持管体
72,74,76,78,80,82 測定部分
84 湾曲部分
86 ファイバーセンサ(ファイバーセクション)
90 光ファイバー
92 固定点
Claims (10)
- ステータ巻線終端部品と、
前記巻線終端部品のうちの2つに固定された2つの固定点(63)及び前記ステータ巻線終端部品のうちの2つの間の相対変位を測定するためのセンサ(54)を有する検知ケーブル(50)と、
を備えるステータ(14)。 - 前記ステータ巻線終端部品が、巻線終端バー(32)と、巻線終端ループ(34)と、相互接続導体(44)と、複数の接続リング(40)とを含む、
請求項1に記載のステータ。 - 前記2つの固定点は、前記相互接続導体の少なくとも1つに隣接して前記接続リングの2つに固定される、
請求項2に記載のステータ。 - 前記センサが機械的歪みに敏感なファイバー材料を含む、
請求項1に記載のステータ。 - 前記センサが、少なくとも1つの変調周期のファイバーブラッグ格子を含む、
請求項1に記載のステータ。 - 前記検知ケーブルが、ファイバーセンサ、シース管体、及びファイバーセンサとシース管体との間に接着剤を有する光ファイバーを含む、
請求項1に記載のステータ。 - 前記検知ケーブルが、支持管体と、ポリマー層でコーティングされた光ファイバーとを含み、前記光ファイバーが前記支持管体の外側表面に固定される、
請求項1に記載のステータ。 - 前記検知ケーブルが、2つの前記巻線終端部品に実質的に垂直であるか、又は2つの前記巻線終端部品に対して鋭角である、
請求項2に記載のステータ。 - 前記検知ケーブルが、前記2つの巻線終端部品間で湾曲形状を含む、
請求項2に記載のステータ。 - 前記センサの少なくとも一部が、隣接する接続リング間に固定される、
請求項3に記載のステータ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/506,287 US20110018483A1 (en) | 2009-07-21 | 2009-07-21 | Stator end-winding component monitoring system |
US12/506,287 | 2009-07-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011030416A true JP2011030416A (ja) | 2011-02-10 |
JP5727728B2 JP5727728B2 (ja) | 2015-06-03 |
Family
ID=42712114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010161185A Active JP5727728B2 (ja) | 2009-07-21 | 2010-07-16 | ステータ巻線終端部品監視システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110018483A1 (ja) |
JP (1) | JP5727728B2 (ja) |
KR (1) | KR101687023B1 (ja) |
DE (1) | DE102010036492B4 (ja) |
GB (1) | GB2473903B (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8379225B2 (en) | 2010-03-31 | 2013-02-19 | General Electric Company | System for monitoring a relative displacement of components |
US8514409B2 (en) | 2010-03-31 | 2013-08-20 | General Electric Company | System for monitoring a relative displacement of components |
US8520986B2 (en) * | 2010-04-05 | 2013-08-27 | George Franklin Dailey | Use of fiber optic sensor techniques for monitoring and diagnostics of large AC generators |
DE102011105427A1 (de) * | 2011-06-20 | 2012-12-20 | Voith Patent Gmbh | Elektrische Maschine mit einer Einrichtung zum Überwachen der Rotorgeometrie |
DE102012206935A1 (de) * | 2012-04-26 | 2013-10-31 | Siemens Aktiengesellschaft | Generator mit Abstandssensor |
US10031331B2 (en) | 2013-07-09 | 2018-07-24 | General Electric Company | Inspection apparatus guide system |
EP3065272A1 (de) * | 2015-03-06 | 2016-09-07 | Siemens Aktiengesellschaft | Zustandsorientierte Wickelkopfüberwachung |
US9939458B2 (en) | 2015-08-27 | 2018-04-10 | General Electric Company | Insulated accelerometer assembly for high voltage environment |
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2009
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-
2010
- 2010-07-09 GB GB1011537.6A patent/GB2473903B/en not_active Expired - Fee Related
- 2010-07-16 JP JP2010161185A patent/JP5727728B2/ja active Active
- 2010-07-19 DE DE102010036492.4A patent/DE102010036492B4/de active Active
- 2010-07-21 KR KR1020100070370A patent/KR101687023B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
US20110018483A1 (en) | 2011-01-27 |
DE102010036492A1 (de) | 2011-03-10 |
KR101687023B1 (ko) | 2016-12-15 |
JP5727728B2 (ja) | 2015-06-03 |
GB2473903A (en) | 2011-03-30 |
GB2473903B (en) | 2015-12-09 |
KR20110009061A (ko) | 2011-01-27 |
GB201011537D0 (en) | 2010-08-25 |
DE102010036492B4 (de) | 2021-05-06 |
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