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(2)运行中要尽量减少两侧动叶开度之差,保持两侧风机出力平衡,动叶开度不要过大,定期对管路系统吹灰,减小系统阻力。

(3)如风机失速过于频繁,就应对风道系统进行改造,可采取变直角弯头管路为圆弧角管路

析及处理[J].广西电力,2002,(3):57-58.

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GuangdongScience&Technology,2009, 措施[J].电力设备,2006,(1):73-75.

第7期马少栋,等动叶可调轴流风机失速与喘振现象及其预防措施 力,1996,(4):27-30.

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ZhengFuguo,ChenYulong.Stallingcauseanalysisof

axialflowforceddraftfananditspreventionmeasures[J].ElectricalEquipment,2006,(1):73-75.[9]田小东,刘福君.锅炉送风机失速故障一例[J].热

LiNaizhao.Analysisonsurgeandimprovementmeas2uresofaxialflowfan[J].GuangdongElectricPower,1996,(4):27-30.

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TianXiaodong,LiuFujun.Onecaseofstallfailureofboilerforceddraftfan[J].ThermalPowerGeneration,2007,(10):79-80.

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HuaGuojun.Countermeasuresforstallingandsurgingofaxialfan[J].ZhejiangElectricPower,2002,40-43.

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预防措施[J].发电设备,2008,(6):506-508.

ZhouJun,XiaoLingtao.Analysisonstallofarotorbladeadjustableaxialflowprimaryairfanandthereme2dy[J].PowerEquipment,2008,(6):506-508.[11]李乃钊.轴流风机喘振分析及防止对策[J].广东电 力发电,2008,(3):76-78.

LiChunhong.Analysisofstallandsurgeforaxial2flowfanstreatment[J3):PowerGeneration, InvestigationinVariablePitchAxialFans Shaodong,LiChunxi,WangHuan,QiCheng

(SchoolofEnergyPowerandMechanicalEngineering,NorthChinaElectricPowerUniversity,Baoding071003,China)Abstract:Itiscommonfaultsthatstallandsurgeemergefromaxialfanatoperationofpowerplant,whichcon2straints,toalargeextent,safeandeconomicaloperationofthepowerunit.Onthebasisofexplainingthephenom2enonofstallandsurge,thepresentpapernotonlyanalyzedandsummarizedthecausesandaccordingtreatmentmeasuresofstallandsurgeforvarioustypeaxialfaninmanypowerplantsdomestically,butalsoillustratedvaria2tionofoperatingpointsinstallandsurgeoccurrenceprocessesandinducedpreventivemeasures.Keywords:variable2pitchaxialfan;surge;stall;preventivemeasures (上接第11页) 参考文献:

[1]高叔开,纪连恩,高磊.火电机组DCS仿真新思路 [J].电力系统自动化,2005,(5):73-75.

GaoShuKai,JiLianEng,GaoLei.NewtrainofthoughtabouttheDCSsimulationofthethermalpowergeneratingunits[J].AutomationofElectricPowerSys2tems,2005,(5):73-75. [2]段新会,姜萍.基于虚拟DCS仿真的控制系统实验 4 结 论

通过齐次坐标变换,可以还原IA操作员站图

形画面及驱动,实际应用中通过计算机图形技术可以还原大部分工业图形,并且任意缩放而不失

[2]

真。该还原技术的特点是仿真逼真度高,并且减轻了仿真机开发人员的工作强度,极大地缩短了仿真机的开发周期。在浙江乌沙山及山东菏泽等电厂的使用得到了客户的高度认同。

[1]

验证平台开发[J].电力科学与工程,2008,24

(8):56-59.

HomogeneousCoordinateTransformationApplication onIASystemOperatorStationSimulation GaoShukai

(ResearchInstituteofSimulation&Control,NorthChinaElectricPowerUniversity,Baoding071003,China)Abstract:ThispaperdescribedtheIAsystemoperatorstationsduringthesimulationprocess,usinghomogeneouscoordinatetransformationontheIAsystemoperatorstationgraphicsfileswererestored.Indicatedthattheoperatorstationcomputergraphicssimulation,canincreasesimulationfidelitygreatly,cangreatlyreducethedevelopmentofsimulatordevelopersintensityandgreatlyreduceoperatorstationssimulationdevelopmentcycle.Keywords:operatorstationsimulation;homogeneouscoordinates;graphtransformation