JP6228553B2 - リアルタイムガスタービン性能通知のための方法およびシステム - Google Patents
リアルタイムガスタービン性能通知のための方法およびシステム Download PDFInfo
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
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- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
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- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
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- G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
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- G05B23/0272—Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
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-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
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- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
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- G05B2219/25—Pc structure of the system
- G05B2219/25315—Module, sequence from module to module, structure
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0243—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults model based detection method, e.g. first-principles knowledge model
- G05B23/0245—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults model based detection method, e.g. first-principles knowledge model based on a qualitative model, e.g. rule based; if-then decisions
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- G—PHYSICS
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- G05B23/02—Electric testing or monitoring
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- G05B23/0283—Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL]
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Turbines (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Description
1.軸流圧縮機効率および流量、これらはガスタービン内の軸流圧縮機の性能を特徴付けるための2つの重要なパラメータであり、低下指標として使用することが可能である。ポリトロープ効率は、スモールステージ効率と呼ばれ、エレメントステージの等エントロピー効率を表す。この効率を計算する際に、比熱の比率を、温度についての依存性を取り込むために経験的相関関係を使用して計算する。計算した効率を、次に実際の軸流圧縮機速度および注入口ガイド翼開口について補正する。補正係数を、熱力学シミュレーションソフトウェアを使用して求める。この効率は、モニタリングシステムの最初の配置において計算した初期効率に対する低下をモニタする。時間経過とともにこの値をモニタすることは、水洗の必要性または圧縮機ファウリングの存在を予測することを可能にする。流量は、吐出圧力に比例し、周囲温度および圧力に依存する。周囲条件をISO条件に補正した後で、流れ効率を、実際の速度および注入口ガイド翼開口に基づいてやはり補正する。
fT3(T2)は、周囲温度に基づく補正であり、
c0...c3は、定数であり、T3corrは、比熱γの比:
c0...c3は、上記とは異なる定数である。
Tambパラメータを:
Tambパラメータを:
IGVパラメータを:
流量係数Corrected=流量係数*K1*K2。
K(Pamb)*K(RH)*K*(ΔPinlet)*K(Tamb、TNL)
を使用して計算する610。
出力電力補正後=出力電力/補正係数
を使用して決定する614。
K(Pamb)*K(RH)*K*(ΔPinlet)*K(Tamb、TNL)
を使用して計算する710。
(燃料流量*LHV)/(出力電力)
を使用して決定する712。
発熱率補正後=発熱率/補正係数
を使用して決定する714。
abs(測定値−計算値)/計算値<10%
を使用して相互に計算した値の10%以内であるかを判断するステップ806を含む。
燃料消費量補正=燃料流量*LHV/補正係数
を使用して決定する。
K(Pamb)*K(RH)*K*(ΔPinlet)*K(Tamb、TNL、出力電力)
を使用して計算する816。
ISO電力での燃料消費量補正=燃料消費量補正/電力補正
を使用して決定する818。
ずれ=(実際のISO計量系燃料消費量828)−(期待されるISO計量系燃料消費量832)
を使用して決定する834。
102 遠隔モニタリングおよび診断センタ
104 第1のサイト
106 プロセス解析装置
108 装置モニタリングシステム
110 装置ローカル制御センタ
112 モニタリングおよびアラームパネル
114 インテリジェントモニタリングおよび診断(IMAD)システム
116 ネットワーク
118 専用ネットワーク
120 ワイアレスリンク
122 インターネット
124 第2のサイト
126 n番目のサイト
200 ネットワークアーキテクチャ
201 分散型制御システム(DCS)
202 サーバグレードコンピュータ
203 ネットワークバックボーン
204 クライアントシステム
205 プロセッサ
206 データベースサーバ
207 ワイアレス基地局
208 アプリケーションサーバ
209 他の制御システム
210 ウェブサーバ
212 ファックスサーバ
213 ローカルモニタリングおよび診断システム(LMDS)
214 ディレクトリサーバ
216 メールサーバ
220 データストレージユニット
222 ワークステーション
226 インターネットリンク
228 クライアントシステム
230 サービスプロバイダ
232 ワークステーション
234 マネージャワークステーション
236 クライアントシステム
240 データベース
242 対話型電子技術マニュアルサーバ
244 携帯型振動モニタ
245 携帯型プロセスデータ収集装置
246 オンラインモニタ
248 モータ保護リレー
250 開閉装置
280 ルールセット
282 入力
284 出力
286 入力
288 出力
400 方法
402 ガスタービンが定常状態であることを判断する
404 注入口ガイド翼位置が55%開よりも大きいことを判断する
406 温度T2およびT3をモニタリングシステムから読み取る
408 周囲補正したT3corrを求める
410 周囲温度に基づく補正
412 T3corrは比熱γの比を求める温度
414 ポリトロープ効率を求める
416 ηを補正する
418 値をバッファする
420 平均効率を決定する
422 圧縮機効率の低下を判断する
500 方法
502 ガスタービンが定常状態であることを判断する
504 注入口ガイド翼位置が55%開よりも大きいことを判断する
506 T2および圧縮機吐出圧力(CDP)を読み取る
508 流量係数を決定する
510 流量係数を補正する
512 値をバッファする
514 平均流れ効率を決定する
516 流れ効率の低下を判断する
600 方法
602 ガスタービンが定常状態であることを判断する
604 注入口ガイド翼位置が84%開よりも大きいことを判断する
606 GT軸流圧縮機速度(TNH)が98%よりも大きいことを判断する
608 Pamb、Tamb、ΔPinlet、RH(湿度)、TNLの値を読み取る
610 補正係数を計算する
612 電力出力を読み取る
614 補正した電力出力を決定する
616 出力電力の低下を判断する
700 方法
702 ガスタービンが定常状態であることを判断する
704 注入口ガイド翼位置が84%開よりも大きいことを判断する
706 GT軸流圧縮機速度(TNH)が98%よりも大きいことを判断する
708 Pamb、Tamb、ΔPinlet、RH(湿度)、TNLの値を読み取る
710 補正係数を計算する
712 発熱率を決定する
714 補正した発熱率を決定する
716 出力電力の低下を判断する
800 方法
802 ガスタービンが定常状態であることを判断する
804 測定した燃料流量および計算した燃料速度を受信する
806 測定値および計算値が相互に計算した値の10%以内であるかを判断する
808 測定した燃料流量を使用する
810 計算した燃料流量を使用する
814 Pamb、Tamb、ΔPinlet、RH(湿度)、TNL、電力出力の値を読み取る
816 補正係数を計算する
818 ISO計量系電力での燃料消費量補正を決定する
820 現在の電力において計算した期待されるISO計量系燃料消費量
822 ISO電力において計算した期待されるISO計量系燃料消費量
826 ISO計量系電力における燃料消費量補正をバッファする
828 実際のISO計量系燃料消費量828
830 ISO電力において計算した期待されるISO計量系燃料消費量をバッファする
832 期待されるISO計量系燃料消費量を決定する
834 燃料消費量ずれを決定する
Claims (5)
- ガスタービンの出力における異常をモニタし診断するためのコンピュータに実装した方法であって、ユーザインターフェースおよびメモリデバイスにつなげられたコンピュータデバイスを使用して実装され、
前記メモリデバイス内に複数のルールセットを記憶するステップであり、前記ルールセットが前記ガスタービンの前記出力に関係し、前記ルールセットがリアルタイムデータ入力に対するリアルタイムデータ出力の関係式として表現された少なくとも1つのルールを含み、前記関係式が前記ガスタービンの圧縮機の性能に特有である、記憶するステップと、
前記ガスタービンに関係する条件モニタリングシステムからリアルタイムデータ入力および履歴データ入力を受信するステップであり、前記データ入力が前記圧縮機の前記性能に影響を及ぼすパラメータに関係する、受信するステップと、
前記圧縮機の前記性能の初期値を決定するステップと、
前記圧縮機の前記性能の現在の値を定期的に決定するステップと、
前記決定した初期値を前記現在の値のそれぞれ1つと比較するステップと、
前記比較に基づいて前記圧縮機の前記性能の前記少なくとも1つの時間経過にともなう低下を判断するステップと、
前記低下を補正するために是正処置のセットを前記ガスタービンのオペレータに推奨するステップと、
を含み、
前記圧縮機の前記性能は軸流圧縮機効率であり、前記軸流圧縮機効率が温度に依存する比熱比を使用して決定される、
方法。 - 前記軸流圧縮機の実際の速度および注入口ガイド翼の実際の開口に関して前記決定した効率を補正するステップをさらに含む、請求項1に記載の方法。
- 流体連通する軸流圧縮機および低圧タービンを備えるガスタービン用のガスタービンモニタリングおよび診断システムであって、ルールセットを備え、前記ルールセットが、前記ガスタービンの圧縮機の性能に対するリアルタイムデータ出力の関係式を含み、
前記ルールセットが、
前記ガスタービンに関係する条件モニタリングシステムからリアルタイムデータ入力および履歴データ入力を受信することであって、前記データ入力が前記圧縮機の前記性能に影響を及ぼすパラメータに関係する、データ入力を受信し、
前記圧縮機の前記性能の初期値を決定し、
前記圧縮機の前記性能の現在の値を定期的に決定し、
前記決定した初期値を前記現在の値のそれぞれ1つと比較し、
前記比較に基づいて前記圧縮機の前記性能の時間経過にともなう低下を判断し、
前記低下を補正するために是正処置のセットを前記ガスタービンのオペレータに推奨する
ように構成され、
前記圧縮機の前記性能は軸流圧縮機効率であり、前記軸流圧縮機効率が温度に依存する比熱比を使用して決定される、
システム。 - 前記ルールセットが、前記履歴データ入力および熱力学シミュレーションアルゴリズムのうちの少なくとも1つを使用して前記リアルタイムデータ入力を提供するセンサの操作性を検証するように構成される、請求項3に記載のシステム。
- 前記ルールセットが、経験的相関を使用して前記比を求めた温度を決定するように構成される、請求項3に記載のシステム。
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