JP7483579B2 - グリッドベースのアセットのための光ファイバ感知システム - Google Patents
グリッドベースのアセットのための光ファイバ感知システム Download PDFInfo
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- JP7483579B2 JP7483579B2 JP2020169286A JP2020169286A JP7483579B2 JP 7483579 B2 JP7483579 B2 JP 7483579B2 JP 2020169286 A JP2020169286 A JP 2020169286A JP 2020169286 A JP2020169286 A JP 2020169286A JP 7483579 B2 JP7483579 B2 JP 7483579B2
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- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35306—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement
- G01D5/35309—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer
- G01D5/35316—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer using a Bragg gratings
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- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
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- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
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- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
- G01D5/35374—Particular layout of the fiber
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
- G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
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- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
- G01L1/246—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using integrated gratings, e.g. Bragg gratings
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
- G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
- G01M3/047—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means with photo-electrical detection means, e.g. using optical fibres
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection
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- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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- H01F27/10—Liquid cooling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Housings And Mounting Of Transformers (AREA)
Description
Claims (25)
- 少なくとも1つの振動センサを含む1つ又は複数の光センサを有する少なくとも1つの光ファイバを含むセンサネットワークであって、前記少なくとも1つの振動センサが、電力グリッド電気デバイス内に配設され、前記電力グリッド電気デバイスの振動を感知するように構成されている、センサネットワークと、
前記少なくとも1つの振動センサからの光出力の時間変動に応答して電気的な時間領域信号を生成するように構成された少なくとも1つの検出器と、
分析器であって、
所定の連続時間の時間窓にわたって取得された前記電気的な時間領域信号を、前記時間窓のそれぞれについて複数の周波数領域信号に変換することと、
前記複数の周波数領域信号のそれぞれから前記時間領域信号の周波数成分を抽出することと、
抽出された前記周波数成分から1つ又は複数のスナップショット周波数成分信号を取得することであって、各スナップショット周波数成分信号が、データ取得期間にわたる前記時間領域信号の抽出された前記周波数成分の時間変動信号を含む、ことと、
前記スナップショット周波数成分信号に基づいて前記電力グリッド電気デバイスの状態の存在又は量を検出することと、を行うように構成されている、分析器と、を備える、センサシステム。 - 前記少なくとも1つの振動センサ又は前記光ファイバが、前記電力グリッド電気デバイスの構成要素に堅固に取り付けられている、請求項1に記載のシステム。
- 前記電力グリッド電気デバイスが、油入変圧器であり、
前記油入変圧器の前記構成要素が、前記油入変圧器のコア、油タンク壁、油タンク蓋、低電圧プレート、及びフレームの1つを含む、請求項2に記載のシステム。 - 前記少なくとも1つの振動センサが、前記電力グリッド電気デバイスの2つの構成要素に取り付けられ、前記2つの構成要素の相対運動を感知するように構成されている、請求項2に記載のシステム。
- 前記少なくとも1つの振動センサが前記電力グリッド電気デバイスの前記2つの構成要素の間に配設されるように、前記光ファイバが、前記電力グリッド電気デバイスの2つの構成要素に取り付けられている、請求項2に記載のシステム。
- 前記電力グリッド電気デバイスが変圧器であり、前記2つの構成要素が、前記変圧器の第1のコア及び第2のコアである、請求項5に記載のシステム。
- 前記電力グリッド電気デバイスが変圧器であり、前記2つの構成要素が、前記変圧器のコア及びフレームである、請求項5に記載のシステム。
- 前記電力グリッド電気デバイスが変圧器であり、前記少なくとも1つの振動センサが、前記変圧器内の油中にあり、変圧器構成要素に堅固に取り付けられていない、請求項1に記載のシステム。
- 前記センサネットワークが温度センサも含む、請求項1に記載のシステム。
- 前記電力グリッド電気デバイスが油入変圧器であり、前記センサネットワークが、前記油入変圧器の油タンク壁に近接して位置付けられた少なくとも1つの温度センサを含む、請求項1に記載のシステム。
- 前記電力グリッド電気デバイスが油入変圧器であり、前記センサネットワークが、前記油入変圧器内の油の上方のヘッドスペースに位置付けられた少なくとも1つの温度センサを含む、請求項1に記載のシステム。
- 前記電力グリッド電気デバイスが油入変圧器であり、前記センサネットワークが、前記油入変圧器内の油の表面に近接して位置付けられた少なくとも1つの温度センサを含む、請求項1に記載のシステム。
- 前記電力グリッド電気デバイスが油入変圧器であり、前記センサネットワークが、前記変圧器の油タンクの底部に近接して位置付けられた少なくとも1つの温度センサを含む、請求項1に記載のシステム。
- 前記電力グリッド電気デバイスが変圧器であり、前記センサネットワークが、前記変圧器のコイルの頂部に近接して、前記コイルの中央部に近接して、及び/又は前記コイルの底部に近接して位置付けられた少なくとも1つの温度センサを含む、請求項1に記載のシステム。
- 前記電力グリッド電気デバイスが油入変圧器であり、前記センサネットワークが油面センサを含む、請求項1に記載のシステム。
- 前記センサネットワークが、前記電力グリッド電気デバイスの外部に配設された1つ又は複数の外部センサを含む、請求項1に記載のシステム。
- 前記1つ又は複数の外部センサが環境センサを含む、請求項16に記載のシステム。
- 前記光ファイバが、前記電力グリッド電気デバイスのケースの開口部を通って挿入されたロッドの上に又はその中に配設されている、請求項1に記載のシステム。
- 前記光ファイバが、少なくとも1つの光温度センサ及び少なくとも1つの油面センサを含む、請求項18に記載のシステム。
- 前記ロッドがポリカーボネートを含む、請求項18に記載のシステム。
- 前記電力グリッド電気デバイスが変圧器であり、
前記ロッドが、前記変圧器の内部構成要素に取り付けられ、
前記光ファイバが、プラグ嵌合部を通って前記変圧器から出る、請求項18に記載のシステム。 - プラグが前記開口部内に配設され、
前記光ファイバが、プラグの孔を通って配設される、請求項21に記載のシステム。 - 前記開口部が、アメリカ管用テーパねじ(NPT)開口部であり、前記プラグがNPTプラグである、請求項22に記載のシステム。
- 前記プラグの前記孔を密封するように構成された密封部を更に備える、請求項22に記載のシステム。
- 前記電力グリッド電気デバイスが油入変圧器を含み、前記油入変圧器が、
油を収容するように構成された変圧器ケースと、
前記変圧器ケース内に配設された1つ又は複数の油ダクトを含む絶縁材と、を含み、
前記少なくとも1つの光ファイバが、前記油ダクトのうちの少なくとも1つを少なくとも部分的に通って延在する、請求項1に記載のシステム。
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