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1、第47卷第11期熱力發(fā)電Vol.47No.112018年11月THERMALPOWERGENERATIONNov.2018火電機(jī)組深度調(diào)峰一次調(diào)頻優(yōu)化控制策略111223郭亦文，劉茜，劉暢，鮑教旗，安建軍，孫進(jìn)（1.西安熱工研究院有限公司，陜西西安710054；2.華能曲阜電廠，山東曲阜273100；3.華能萊蕪發(fā)電有限公司，山東萊蕪271100）［摘要］針對深度調(diào)峰下火電機(jī)組運(yùn)行經(jīng)濟(jì)性與調(diào)頻性能之間的矛盾，提出了一種一次調(diào)頻優(yōu)化控制策略。綜合考慮了熱耗率、背壓、當(dāng)前負(fù)荷及高壓調(diào)節(jié)閥節(jié)流狀態(tài)，確定在滑壓運(yùn)行區(qū)間各個(gè)指標(biāo)均最優(yōu)的主蒸汽壓力，以多目標(biāo)智能
2、滑壓優(yōu)化運(yùn)行方式為基礎(chǔ)，利用凝結(jié)水變負(fù)荷技術(shù)增加機(jī)組儲(chǔ)熱利用率，從而兼顧了機(jī)組低負(fù)荷下調(diào)頻性能與運(yùn)行經(jīng)濟(jì)性。本文綜合全工況滑壓修正、多目標(biāo)智能滑壓優(yōu)化及凝結(jié)水變負(fù)荷技術(shù)，在某600MW機(jī)組進(jìn)行一次調(diào)頻優(yōu)化試驗(yàn)。結(jié)果表明，該一次調(diào)頻優(yōu)化控制策略能夠保證機(jī)組在中低負(fù)荷段達(dá)到較高的一次調(diào)頻合格率，為火電機(jī)組深度調(diào)峰提供了一種有效方法。［關(guān)鍵詞］火電機(jī)組；深度調(diào)峰；多目標(biāo)智能滑壓優(yōu)化；一次調(diào)頻；凝結(jié)水變負(fù)荷；控制策略［中圖分類號］TM621.6［文獻(xiàn)標(biāo)識(shí)碼］A［DOI編號］10.19666/j.rlfd.201803063［引用本文格式］郭亦文,劉茜,劉暢,
3、等.火電機(jī)組深度調(diào)峰一次調(diào)頻優(yōu)化控制策略[J].熱力發(fā)電,2018,47(11):135-139.GUOYiwen,LIUXi,LIUChang,etal.Controlstrategyoptimizationforprimaryfrequencyregulationindepthpeakloadcyclingofthermalpowerunits[J].ThermalPowerGeneration,2018,47(11):135-139.Controlstrategyoptimizationforprimaryfrequencyregulation
4、indepthpeakloadcyclingofthermalpowerunitsGUOYiwen1,LIUXi1,LIUChang1,BAOJiaoqi2,ANJianjun2,SUNJin3(1.Xi’anThermalPowerResearchInstituteCo.,Ltd.,Xi’an710054,China;2.HuanengQufuPowerPlant,Qufu273100,China;3.HuanengLaiwuPowerGenerationCo.,Ltd.,Laiwu271100,China)Abstract:Tosolvethep
5、roblembetweenoperatingeconomyandfrequencymodulationperformanceindepthpeakloadcyclingofthermalpowerplants,aprimaryfrequency-tuningoptimizationcontrolstrategywasproposed.Inthisstrategy,theheatconsumptionrate,unitbackpressure,currentloadandthrottlingstateofhighpressureregulatingva
6、lvearecomprehensivelyconsidered,andthemainsteampressurewhichisoptimalforeachindexinslidingpressureoperationzoneisdetermined.Basedonthemulti-objectiveintelligentslidingpressureoperationmode,thecondensingwaterloadchangetechnologyisfullyutilizedtoincreasetheutilizationrateoftheuni
7、theatstorage,soastoachievetheobjectiveofbalancingthefrequencymodulationperformanceandtheoperationaleconomyatlowloadoftheunit.Combinedwithfull-conditionslidingpressurecorrection,multi-objectiveintelligentslidingpressureoptimizationandcondensatevariableloadtechnology,theprimaryfr
8、equencymodulationoptimizationtestwascarriedoutina600MW
