600MW機組協(xié)調控制系統(tǒng)優(yōu)化策略的研究.pdf

1、華北電力大學（保定）碩士學位論文600MW機組協(xié)調控制系統(tǒng)優(yōu)化策略的研究姓名：張瑾哲申請學位級別：碩士專業(yè)：控制工程指導教師：馬永光；高志存201203華北f也力大學碩士學位論文AbstractWiththeincreaseofgridcapacityandloaddemand，moreandmorepowergeneratingenterprisestumtheirfocustotheconstructionandoperationL

2、argegeneratorunitsandsupercriticalunitsof600MWandabovehasbeenthemainforceunitofthermalpowergenerationinChinaThepeak—valleygapisincreasinggreatlyatpresentwhichrequirespowerproduceratimelyresponsetotheloadvariationtobeeffe

3、ctiveonpeak—shavingForthispurpose，coordinatedcontrolsystem(ccs)hasbeenimplementedtoalllargegeneratorunitstespondAGC(automaticgeneratingcontr01)instructionsForsomefeaturesofsupercriticalunitsitiSstricteronthedemandofpower

4、balancerelationshipforthesupercriticalonce—throughboilerhaslessheatstoragewhichisdifferentfromtraditionaldrumboilerduringloadchanging；aswellasdirect—firingpulverizingsystemhasbeenusedinlargegeneratorunitsandthelaggingofi

5、tsresponseiSbadforthequickresponsetothecoordinatecontrolofgeneratorandboilerTheresearchofthecontrolsystemofsupercriticalgeneratorunitswouldbehelpfultoincreasethestabilityandeconomyofunitoperationaswellasthemarketcompetit

6、ivenessofpowergeneratingenterpriseFirstlythecoordinatecontrolsystemofgeneratingunithasbeenintroducedinthispaperandthencomesdifferenttypeandoperationmodeofthecontrolsystemFromthecomparisonofonce—throughboilersupercritical

7、unitanddrumboilersubcriticalunit，theanalysisofthefeaturesofonce—throughboilerandthecoordinatecontrolstrategyofsupercriticalunitshasbeenprocessedAtlast，combinedwiththeregulatingtestofNo4generatingunitinDingzhouplanttoanal

8、yzethecoordinatecontrolstrategyofthisunitandoptimizecalorificvaluecorrectioncircuitandAGCcontr01circuitwithsitetestaccordingtounitoperationKeywords：coordinatecontrolsystem；supercriticalunits；boilerfollow；energybalance；op