600MW发电机组自动装置整定计算及仿真

I600MW发电机组自动装置整定计算及仿真研究摘要针对600MW发电机组自动装置，最初分析初始材料，从而确定了电气主接线，然后进行了短路点的电流计算，再对发电机组自动装置进行配置，采用了先进的DGT801、pss660、WBKQ-01B等设备，并对各个装置进行整定计算，鲜明的突出了各个保护的特点，以求在配置和整定值上满足大机组对保护选择性、灵敏度和可靠性要求。基于厂用电快切仿真，提出了用simlink软件进行仿真的看法，建立了厂用电快速切换模型，该模型由系统摸块、断路器模块，同步发电机模块、示波器模块等组成，仿真了厂用电快速切换过程中母线断电前后电压的特征，结果表明快速切换是安全、可靠的切换方式,它是主切换。关键词发电机组，自动装置，整定计算，快切，仿真IIAbstractInviewof600MWgeneratorsautomaticdevice,firstanalyzestheinitialmaterial.Thushasdeterminedtheelectricalmainwiring.Thencarriedonshort-circuitedtheelectriccurrentcomputation,accordingtocalculatetheresultoftochoosetheelectricityequipments.HasusedtheadvancedequipmentsofthenameDGT801、pss660、WBKQ-01B.andcarryontotheeachprotectionwholeprotectivesettlethecalculation,freshandclearandoutstandingthecharacteristicsthateachoneprotect，Itisusedtomeettherequirementsofbigunitsetforselectivity,sensitivityandreliabilityinconfigurationandsetting.Baseonpowerhigh-speedswitchsimulation,Proposedtheideaofusethesoftwareofsimulation.Establishmentthemodelofpowerhigh-speedswitch.ThismodeliscomposedbytheThree-Phasebreak、SimplifiedSynchronousMachineblock、Scopeblock.Analyzethevoltagecharacteristicsofthebusbarafteroutageare.aswellaspossiblemattersduringhousesupplytransfer.Fourpossibletransfermodesarepresented:thefasttransfer,thefirstphasecoincidencetransfer,Thefasttransferisthesafestandmostreliablemode,whichisregardedasthemaintransfer.KeyWordsgenerator-transformerunit，Automaticdevice，settingcalculation，high-speedswitch，simulationIII目录摘要.................................................................................................................................IAbstract.............................................................................................................................II目录..........................................................................................................................III1绪论..............................................................................................................................12发电机组一次设备设计..............................................................................................22.1600MW发电机组一次接线及系统运行方式说明..............................................22.2主要设备参数.........................................................................................................22.3系统运行方式.........................................................................................................32.4有关短路点及短路形式的选择.............................................................................33继电保护及自动装置配置...........................................................................................43.1继电保护保护配置.................................................................................................43.2发电机组安全自动装置的配置.............................................................................64继电保护及自动装置整定原则..................................................................................84.1比率制动式纵差保护.............................................................................................84.2发电机横差保护.....................................................................................................94.3变压器纵差动保护.................................................................................................94.4发电机反时限对称过负荷保护............................................................................114.5发电机反时限不对称过负荷保护.......................................................................124.6复合电压过流保护...............................................................................................134.7发电机过电压保护...............................................................................................144.8发电机失磁保护（阻抗原理）...........................................................................144.9发电机基波零序电压式定子接地保护...............................................................164.10发电机三次谐波电压式定子接地保护...............................................................164.11发电机注入式转子一点接地保护.......................................................................174.12发电机转子两点接地保护...................................................................................17IV4.13发电机频率异常保护...........................................................................................184.14阻抗保护...............................................................................................................194.15变压器零序电流保护...........................................................................................194.16低电压起动的过电流保护...................................................................................205继电保护及自动装置整定计算................................................................................225.1相关参数计算.......................................................................................................225.2发电机纵差动保护...............................................................................................225.3发电机横差动保护...............................................................................................245.4变压器纵差动保护............................................................