JP6636021B2 - 排出挙動を特定する方法 - Google Patents
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- G06F30/20—Design optimisation, verification or simulation
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
- F02C9/28—Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
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- 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
- G05B23/0254—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 quantitative model, e.g. mathematical relationships between inputs and outputs; functions: observer, Kalman filter, residual calculation, Neural Networks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Description
よく知られているように、工業プラントは、膨大なエネルギーだけでなく、窒素酸化物(Nox)や炭素酸化物(CO)などのような大量の排出物も発生させ、それらの排出物は、人体および環境にとって有害になるおそれがある。したがって、それらの汚染物質を減らすために多大な労力が払われている。このため、工業プラントから生成される排出の監視が不可欠である。しかも、工業プラントの規模や適用される規制によっては、排出レベル(主としてNOx)の連続的な監視が、一部の工業燃焼プロセスに対して法的必要条件となる。
したがって本発明によれば、ガスタービン機関の排出挙動を特定する方法が提供される。
「上流」および「下流」という用語は、別途記載しないかぎり、空気流および/または動作ガス流がガスタービン機関10中を通過して流れる方向を基準とする。また、「軸方向」、「半径方向」、および「周方向」という用語は、別途記載なくこれらを用いたときには、ガスタービン機関10の回転軸30を基準とする。
NOx = 12.26 + (4.93 E-31 * P25) + (3.157 E-18 * P25) - (1.88 E-24 * P24) - (8.267 E-13 * P22) - (4.58 E-38 * P25) - (0,0000034 * P2)
Claims (13)
- ガスタービン機関(10)の排出挙動を特定する方法において、
・前記ガスタービン機関(10)のシステムのモデル(102)を作成するステップ(102a)と、
・前記モデル(102)の入力として使用される少なくとも1つの選択された第1の状態変数(P0,P1,P2,P3,P4,T0,T1,T2,T3,T4,T5,P2B,MCI,TFIRE,QF,QH,QT,SPLIT)を変化させることによって、前記モデル(102)を実行するステップ(102b)と、
・前記ガスタービン機関(10)の排出挙動を表す前記モデル(102)の出力(OUT)を取得するステップ(102c)と、
・前記出力(OUT)を数学的関数に変換することによって、前記ガスタービン機関(10)の前記少なくとも1つの選択された第1の状態変数(P0,P1,P2,P3,P4,T0,T1,T2,T3,T4,T5,P2B,MCI,TFIRE,QF,QH,QT,SPLIT)に対する前記ガスタービン機関(10)の排出挙動をパラメタリゼーション(100)するステップ(100a)であって、前記パラメタリゼーション(100)するステップ(100a)は、前記少なくとも1つの選択された第1の状態変数(P0,P1,P2,P3,P4,T0,T1,T2,T3,T4,T5,P2B,MCI,TFIRE,QF,QH,QT,SPLIT)と、モデリングされた状態挙動とを変化させることにより生じる離散化を連続関数によって近似することによって、前記パラメタリゼーション(100)を決定するステップを含む、ステップと、
・前記数学的関数を用いて前記ガスタービン機関(10)の排出挙動を特定するステップと
を含み、
前記方法は、測定データと、前記数学的関数の結果とを比較するステップ(100b)を含み、前記比較するステップ(100b)の結果、前記測定データと、前記数学的関数の結果とが所定の閾値よりも大きく異なる場合には、前記数学的関数を、テストデータおよび調整データを用いて検証する、ことを特徴とする、
ガスタービン機関(10)の排出挙動を特定する方法。 - ・前記少なくとも1つの選択された第1の状態変数(P0,P1,P2,P3,P4,T0,T1,T2,T3,T4,T5,P2B,MCI,TFIRE,QF,QH,QT,SPLIT)と、異なる複数の選択された第2の状態変数とに対し、前記ガスタービン機関(10)の排出挙動をパラメタリゼーション(100)するステップ(100a)を含む、
請求項1記載の方法。 - 前記ガスタービン機関(10)の前記排出挙動の少なくとも1つの個別のパラメタリゼーション(100)は、二次元の状態空間における描写である、
請求項2記載の方法。 - 前記モデル(102)の前記出力は、前記ガスタービン機関(10)のさらに別の状態変数(OUT)を有する、
請求項1から3までのいずれか1項記載の方法。 - 前記少なくとも1つの選択された第1の状態変数(P0,P1,P2,P3,P4,T0,T1,T2,T3,T4,T5,P2B,MCI,TFIRE,QF,QH,QT,SPLIT)は、前記モデル(102)の入力を表し、および/または、前記ガスタービン機関(10)の排出挙動を表すさらに別の状態変数(OUT)は、前記モデル(102)の出力を表す、
請求項1から4までのいずれか1項記載の方法。 - 前記モデルは動力学モデルである、
請求項1から5までのいずれか1項記載の方法。 - 前記少なくとも1つの選択された第1の状態変数(P0,P1,P2,P3,P4,T0,T1,T2,T3,T4,T5,P2B,MCI,TFIRE,QF,QH,QT,SPLIT)は、
直接測定されるパラメータ、推定されるパラメータ、または熱力学的に導出されるパラメータ
から成る群の中から選択された1つの変数である、
請求項1から6までのいずれか1項記載の方法。 - 前記少なくとも1つの選択された第1の状態変数(P0,P1,P2,P4,T0,T1,T2,T4,T5,QF,QH,QT,SPLIT)は、
周囲入口圧力、機関入口圧力(P0)、周囲入口温度、機関入口温度(T0)、圧縮器入口温度(T1)、圧縮器入口圧力(P1)、圧縮器出口圧力(P2)、圧縮器出口温度(T2)、タービン間ダクト圧力(P4)、タービン間ダクト温度(T4)、排気温度(T5)、ガスタービン機関運転温度、燃料流量(QF)、燃料組成(QH)、燃料温度(QT)、またはメイン燃料とパイロット燃料の分割比(SPLIT)
から成る、直接測定されるパラメータ群の中から選択された1つの変数である、
請求項1から7までのいずれか1項記載の方法。 - 前記少なくとも1つの選択された第1の状態変数(P3,T3,TFIRE,P2B,MCI)は、
燃焼器出口圧力(P3)、燃焼器出口温度(T3)、機関火炎温度(TFIRE)、圧縮器吐出空気の抽気率(P2B)、または計算された質量流量(MCI)
から成る、熱力学的に導出されるパラメータ群の中から選択された1つの変数である、
請求項1から8までのいずれか1項記載の方法。 - 前記モデルは、前記ガスタービン機関(10)のキーコンポーネント(12)の熱力学的挙動をマッピングし、前記キーコンポーネント(12)は、
一次燃焼ゾーン(16)、完全撹拌反応器(66)、メイン火炎(68)、パイロット火炎(68)、押し出し流れ反応器(72)、質量流混合器、質量流分流器、または流れ抵抗
から成る群の中から選択された1つのコンポーネントである、
請求項1から9までのいずれか1項記載の方法。 - 前記少なくとも1つの選択された第1の状態変数(P0,P1,P2,P3,P4,T0,T1,T2,T3,T4,T5,P2B,MCI,TFIRE,QF,QH,QT,SPLIT)の予め定められた値に対する排出挙動を予測するために、前記ガスタービン機関(10)の排出挙動のパラメタリゼーション(100)を用いるステップを含む、
請求項1から10までのいずれか1項記載の方法。 - 少なくとも1つの処理ユニット(18)を含み、請求項1から11までのいずれか1項記載の方法を用いて取得された少なくとも1つの予測によって運転可能である、ガスタービン機関(10)において、
当該ガスタービン機関(10)の状態挙動を表しパラメタリゼーション(100)によって数学的関数に変換される結果を取得するモデル(102)が、前記少なくとも1つの処理ユニット(18)に実装されており、前記数学的関数を用いて前記ガスタービン機関(10)の排出レベルが予測および/または制御されることを特徴とする、
ガスタービン機関(10)。 - 少なくとも1つの燃料供給装置(20)が設けられており、
前記モデル(102)の予測に従い前記排出レベルに作用が及ぼされるように、前記少なくとも1つの燃料供給装置(20)のメイン燃料とパイロット燃料の分割比(SPLIT)を調整可能である、
請求項12記載のガスタービン機関(10)。
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EP14189956.7A EP3012694A1 (en) | 2014-10-22 | 2014-10-22 | Method for determining an emission behaviour |
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PCT/EP2015/073830 WO2016062598A1 (en) | 2014-10-22 | 2015-10-15 | Method for determining an emission behaviour |
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US20190056702A1 (en) * | 2017-08-21 | 2019-02-21 | General Electric Company | Model-based machine learing control system and method for tuning power production emissions |
US20190063332A1 (en) * | 2017-08-22 | 2019-02-28 | General Electric Company | Systems and methods for nox prediction in a power plant |
US10626817B1 (en) * | 2018-09-27 | 2020-04-21 | General Electric Company | Control and tuning of gas turbine combustion |
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RU2017113814A (ru) | 2018-11-22 |
EP3012694A1 (en) | 2016-04-27 |
CA2964833A1 (en) | 2016-04-28 |
CN107077110B (zh) | 2020-11-06 |
EP3210084A1 (en) | 2017-08-30 |
US10489530B2 (en) | 2019-11-26 |
EP3210084B1 (en) | 2022-08-24 |
CN107077110A (zh) | 2017-08-18 |
JP2017531760A (ja) | 2017-10-26 |
WO2016062598A1 (en) | 2016-04-28 |
CA2964833C (en) | 2020-02-25 |
US20170308632A1 (en) | 2017-10-26 |
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