火電機(jī)組可靠性評估與維修決策支持系統(tǒng).pdf

1、華北電力大學(xué)（北京）碩士學(xué)位論文火電機(jī)組可靠性評估與維修決策支持系統(tǒng)姓名：楊棟申請學(xué)位級別：碩士專業(yè)：熱能工程指導(dǎo)教師：朱萍20060301華北電力大學(xué)碩士學(xué)位論文摘要隨著電力工業(yè)商業(yè)化運營的逐步深入，國內(nèi)的發(fā)電企業(yè)越來越迫切地認(rèn)識到提高發(fā)電設(shè)備可靠性是適應(yīng)新的市場需要的重要保證，也是參與競爭必不可少的先決條件。而對設(shè)備實行有效的可靠性評估和采取適當(dāng)?shù)木S修策略，對于保證機(jī)組更加經(jīng)濟(jì)可靠地運行及降低發(fā)電成本都具有重大意義。本文在常用可靠性

2、基礎(chǔ)指標(biāo)和發(fā)電設(shè)備的主要可靠性指標(biāo)基礎(chǔ)上，建立了火電廠各主要系統(tǒng)的可靠性評估模型。對發(fā)電企業(yè)的設(shè)備維修策略進(jìn)行了分析。建立了設(shè)備預(yù)防維修周期的優(yōu)化模型并用遺傳算法進(jìn)行了求解。然后對火電機(jī)組的可靠性評估和維修決策支持系統(tǒng)進(jìn)行了設(shè)計。最后對發(fā)電企業(yè)的設(shè)備可靠性評估和維修工作提出了展望。關(guān)鍵詞：可靠性評估模型維修策略遺傳算法ABSTI認(rèn)CTAlongwiththegradualdeepeningofcommercializedoperatio

3、nofpowerindustrythedomesticelectricitygenerationenterprisesmoreandmoreurgentlyrealizetoenhancethereliabilityofgeneratingequipmentisanimportantassurancethatadaptsthenewmarketdemand，andisalsoallessentialpreconditionofparti

4、cipatingincompetitionSo，implementseffectivereliabilityevaluationandadoptsappropriatemaintenancestrategytotheequipment，hasthegreatsignificanceforguaranteethattheplantoperatesmoreeconomicallyandreliablyaswellasreducestheco

5、stofelectricity—generatingThistexthasestablishedreliabilityevaluationmodelsofmostmainsystemsofthermalpowerplantwhichbasedonthebasiccommonlyusedreliabilityindexesandmainreliabilityindexesofgeneratingequipment，hascarriedon

6、theanalysistoequipmentmaintenancestrategyoftheelectricitygenerationenterprises，hasestablishedtheoptimizationmodelofequipmentpreventivemaintenancecycleandappliedthegeneticalgorithmtosolveit，thenhascarriedondesignstotherel

7、iabilityevaluationandmaintenancedecisionsupportsystemofthermalpowerplant，andfinallyhasputforwardtheprospecttotheequipmentreliabilityevaluationandmaintenanceworkoftheelectricitygenerationenterprisesYangDong(powerplantTher