燃煤系統(tǒng)NO-,x-排放及鍋爐效率平衡建模.pdf

1、華北電力大學(xué)（保定）碩士學(xué)位論文燃煤系統(tǒng)NO排放及鍋爐效率平衡建模姓名：李向菊申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：控制理論與控制工程指導(dǎo)教師：曾德良20081216華北電力大學(xué)碩士學(xué)位論文摘要摘要隨著環(huán)境保護(hù)要求的日益嚴(yán)格，燃煤價(jià)格的不斷上漲，在“廠網(wǎng)分開，競(jìng)價(jià)上網(wǎng)’’的運(yùn)行機(jī)制下，電站鍋爐面臨降低運(yùn)行成本與降低污染物排放的雙重要求，高效低污染燃燒優(yōu)化技術(shù)日益引起人們的關(guān)注。為了滿足鍋爐運(yùn)行高效低污染的要求，本文以電站鍋爐燃燒特性試驗(yàn)數(shù)據(jù)為基礎(chǔ)，結(jié)

2、合BP神經(jīng)網(wǎng)絡(luò)，建立了一個(gè)以鍋爐運(yùn)行參數(shù)為輸入，以NOx排放和鍋爐效率為輸出的混合模型，實(shí)現(xiàn)了電站鍋爐NOx排放與熱效率的預(yù)測(cè)，并采用二進(jìn)制遺傳算法對(duì)燃燒過程進(jìn)行了優(yōu)化。結(jié)果表明，它是一種有效可行的數(shù)值尋優(yōu)方法。關(guān)鍵詞：電站鍋爐，NOx排放，效率，神經(jīng)網(wǎng)絡(luò)，遺傳算法ABSTRACTWiththeincreasinglystringentenvironmentalrequirementsandthecontinuousincreaseof

3、coalprice，coalfiredpowerstationboileroperationisconfrontedwithtwequirementsteduceitsoperationcostandtoloweritsemissionunderthebackgroundofthepowermarketreformofseparationofthepowerplantfromthe鰣dandbiddinginthegenerationm

4、arketThehighefficiencyandlowpollutioncombustionoptimizationtechnologyisattractingmoreandmoreattentionInordertomeettherequirementofhighefficiencyandlowemissioninboileroperations，amixedmodelisdevelopedbasedonexperimentalda

5、taandcombinedwithBPneuralnetworkThismodelusestheadjustableoperationparametersofboiler，USeSNOxemissionandboilerefficiencyastheoutput，andachievespredictionofNOxemissionandheatefficiency，andtheuseofgeneticalgorithmoptimizat

6、ionmodelTheresultsshowthatitisallapplicableandeffectivenumericaloptimizationmethodLiXiangju(ControlTheoryandControlEngineering)DirectedbyassociateprofZengDeliangKEYWORDS：utilityboiler，NOxemissions，boilerefficiency，neural