基于數(shù)據(jù)融合技術的氧量軟測量研究及其應用.pdf

1、華北電力大學工程碩士專業(yè)學位論文摘要尾部煙氣含氧量的準確測量對提高鍋爐燃燒的經(jīng)濟性有重要意義。本文把軟測量技術和數(shù)據(jù)融合技術應用于尾部煙氣氧含量的測量。主要通過機理分析建立了氧量軟測量模型，并根據(jù)所建模型在福建可門電廠的60OMW超臨界機組上進行計算并組態(tài)實施，以驗證模型的實際效果。根據(jù)現(xiàn)場調試和比對實驗，表明建立的氧量軟測量模型能夠較好的反映實際氧量的變化。此外，本文基于工藝機理的氧量軟測量模型完全利用鍋爐己有信號，相對于傳統(tǒng)氧量計，

2、具有可靠性高、計算精度高、使用維護方便等優(yōu)勢。而且在其他方面例如控制、設備故障診斷等方面具有良好的應用前景，因此本文的軟測量方法具有較大的推廣應用價值。關鍵詞:軟測量技術，數(shù)據(jù)融合，機理分析，氧量ABSTRACTTheaccuratemeasurementofoxygeneontentinfluegases15significantfortheimProvementoftheeconomieeombustion.Thesoft一sens

3、ingteehniqueanddatafusionareusedtomeasureoxygeneontentinfluegasesinthisthesis.Firstly，ProPosedanewsoft一sensingmodelofoxygeneontentthroughmeehanismanalysis.Theneonstruetedtheconfigurationbasedonthesoft一sensingmodelsandaPP

4、liedon600MWmachinesofKEMENPowerstation.ThetestingandeomParisonexPerimentresultsshowthattheoutPutofsoft一sensingmodelfitswellwiththePraeticaloxygeneontent.Furthermore，thesoft一sensingmodelbasedonmeehanismanalysisonlyusedthe

5、existingsignals.WithresPecttothetraditionaloxymeter，thenewmethodPerfmsmorereliable，aeeurateandconvenient.Besides，infuturethesoft一sensingmodeleanalsouseinotherareassuehaseontrolandequiPmentfaultdiagnosis.50theProPosedmeth

6、odofourPaPer15valuableinindustryaPPlieations.TongWenhong(ControlTheyControlEngineering)DireetedbyProf.ChangTaihuaKEYWORDS:soft一sensingteehnique，datafusion，mechanismanalysis，oxygeneontentL華北電力大學工程碩士專業(yè)學位論文4.1.5氧量軟測量相關熱控設備參

7、數(shù).............................................……，..........……264.1.6蒸汽流量計算...........................................................................................……264.2實施方案.…，.........................................

8、.....……，..................................................……274.2.1信號測點選取..................................……，..................................................……274.2.2關鍵信號的校準............................................

9、...........................................……294.2.3實際信號的計算及其性能參數(shù)分析.....................................................……354.2.4DCS邏輯組態(tài)....................................................................................

10、......……384.2.5調試...........……，............................................................……，.......................……474.2.6投運效果..........................................................................................

11、.........……494.3本方案的優(yōu)勢....................................................................................................……534.4長期準確可靠措施...................................................................................

12、.........……54第五章結論與工作展望..…，............……，.……，...............................................................……565.1論文工作總結..............................................……，................................................…

13、…565.2工作展望.............................................................................................……，..........……56參考文獻.............……，.......................................……，..............……，............……，......