励磁调节器说明书英文版.docx

励磁调节器说明书英文版.docx

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励磁调节器说明书英文版

DAVR-S1/S2staticthyristormicrocomputerexcitationregulator

Usemaintenanceinstructions

Thefirstchaptersummarize

ShandongjinanpowergenerationequipmentfactoryandBeijingJiSielectricco.,LTD.Formediumandsmallcapacityexcitationequipmentfieldissmall,excitationcurrentsmallcharacteristics,wesuccessfullydevelopedtheDAVR-S1/S2staticthyristormicrocomputerexcitationregulator.Theexcitationregulatorsetexcitationcontroller,siliconcontrolledrectifier,drop-outandover-voltageprotectiondeviceinoneortwoark,simpleconstruction,allkindsofcontrolandprotectionofthefunctionisallready,highreliability,especiallysuitablefor50mwandbelowthestatictypesinceshuntexcitationsystemofwater,thermalpowerunit.

ShandongjinanpowergenerationequipmentfactoryandBeijingJiSielectricco.,LTD.Formediumandsmallcapacityexcitationequipmentfieldissmall,excitationcurrentsmallcharacteristics,wesuccessfullydevelopedtheDAVR-S1/S2staticthyristormicrocomputerexcitationregulator.Theexcitationregulatorsetexcitationcontroller,siliconcontrolledrectifier,drop-outandover-voltageprotectiondeviceinoneortwoark,simpleconstruction,allkindsofcontrolandprotectionofthefunctionisallready,highreliability,especiallysuitablefor50mwandbelowthestatictypesinceshuntexcitationsystemofwater,thermalpowerunit.

ThesecondchapterDesignstandards

GB/T7409.1-7409.3-1997"synchronousgeneratorexcitationsystembasictechnicalconditions"

IEC2A（secret13-1978）"steamturbinegeneratorexcitationsystemtechnologyrequirements"

IEC（secret5933-1982）onthesynchronousgeneratorexcitationsystemoftheseveralprovisionsof

IEC34-16thesynchronousgeneratorexcitationsystem"

DL/T650-1998"largesteamturbinegeneratorsinceshuntstaticexcitationsystemtechnicalconditions"

GB3797-89"electriccontrolequipment,thesecondpart

GB/T3859-93"semiconductorconverter"

GB4064-83"electricalequipmentsafetydesignguideline"

GB4208-93"enclosureprotectionlevel（IPcode）"

GB6162-85"staticrelayandprotectionofelectricalinterferencetest"

GB/T7064-1996"turbinetypesynchronousgeneratortechnicalrequirements"

GB13926-92"industrialprocessmeasurementandcontroldeviceoftheelectromagneticcompatibility"

GB14285-93"relayprotectionandsafetyautomaticdevicesistechnicalregulationson

GB/T14598.9-1995"measurerelayandprotectionofelectricalinterferencetest"

GB50150-91"electricalequipmentsinstallationproject"

GB/T14598.9-1995"relayanddevicepackagingstorageandtransportationtechnologyconditionsof

GB/T596-1996"powerequipmentpreventivetestcode"

Thethirdchapterhardwarestructure

3.1basicconfiguration

DAVR-S1/S2typedigitalmicrocomputerexcitationdevicebyexcitationcontroller,powerrectifierpart,drop-outswitch,excitationtransformerconstitute.Excitationcontrollerisexcitationfeedbackcontrolcorepart.Powerbyhighpowerthyristorrectifierpartiscomposedofthree-phasefullcontrolledrectifierbridge.DAVR-S1/S2typedigitalmicrocomputerexcitationdeviceadoptssingletankstructure,whichincludesexcitationcontroller,highpowerrectifierbridge,drop-outswitch,externalequippedwithexcitationtransformer.DAVR-S1typeforsinglesetexcitationregulationcontroldevice;AndDAVR-S2typefordoublesetexcitationregulationcontroldevice,twosetsofexcitationregulationcontroldeviceasspareoperation,eachsetofexcitationregulationcontroldeviceallcanmeetincludestrongexcitation,thegeneratorallkindsofoperationconditiononexcitationrequirements.

DAVR-S1/S2typedigitalmicrocomputerexcitationdeviceincludesthefollowingthreeparts:

1excitationcontroller:

excitationfeedbackcontrolcorepart;

2highpowerrectifierbridge:

highpowerthree-phasefullcontrolledrectifierbridgeandinputdisconnectinglink;

3drop-outandover-voltageprotectiondevice;Drop-outswitch,nonlineardrop-outresistanceandover-voltageprotectionoutfit

Buy

3.2excitationcontroller

DAVR-S1/S2typedigitalmicrocomputerexcitationcontrollerthecentralprocessingunit（CPU+PSD9**）,digitalswitchquantity,analoginput,A/Dconversion,sixphasepulse,andexternalserialcommunicationandintegratedonAcircuitboardthatfinishonthebasisofexcitationcontrolhashigherreliability.

1,CPU:

Thecentralprocessor:

IntelcompanyMCS80C196KB/80c196kc,16

Workfrequentlyrate:

12MHZ/16MHZ/20MHZ

Memorycapacity:

EPROMandKB/RAM72KB/E2PROMchipswas2KB

Highspeedinput:

4hsi

Highoutput:

6hso

Timer:

twohardwaretimer+4softwaretimer,16

Serialport:

fullduplex,9600/19200BPS

2,A/D:

CPUonchipA/D

Resolution:

2-10

Switchingtime:

10.5us

Channel:

8channel

3,DI/DO:

Points:

photoelectricisolationtype,thebiggest16into/16out

Inputimpedance:

2kΩ

Outputdriver:

DC50V,200ma

Delaytime:

nomorethan10us

4,programmabledevicePSD:

PSD9xxseries,2mbytesofflashmemory,256kbytesofflashmemoryand256kbytedataSRAM,butonlineprogramming.

PSD（ProgrammableSystemdevices）isstmicroelectronicscompany（hereinafterreferredtoasSTcompany）（STMicroelectroics）designandmanufacturingaProgrammableSystemdevice,thedevelopmenthasbeennearly20years.Itisdesignedfor8bitor16,32bitmicrocontrollerandDSPsystemprovidesoptimizationprogrammableperipheraldevices.ItwillFlash,E2PROMchipswas,SRAMandmemory,programmablelogic,I/Oportandpowermanagement,andmanyotherMCUperipheralresourcesintegratedinachipinside,theMCUperipheralhighlyintegrated,justtwosinglechip（MCU+PSD）canreplacemanyperipheraldevices,formacompletesetofMCUsystem.

5,powersupply:

DAVRcontrollerisac,dcdualpowersupply,anywaypowerhaveelectriccanguaranteetheoperationoftheDAVR,normalwhenac/dcdualcoordinatepowersupply.

6,measuringcircuit:

Sitetoexcitationcontrollerofthesignalshaveis100v,5Ahighvoltagesignal,butthecomputerA/Dconversiongeneralcanonlyprocesswithin±5voftheweakcurrentsignal,DAVRmicrocomputerexcitationregulatortousemeasurementconversioncircuitwillbeAsystemofhighvoltagesignalconversionfortheweakcurrentsignal,completethestrong,theweakcurrentisolation.ExcitationcontrollerwillexcitationPTandPTinstrumentof100Vvoltagebythesecondaryvoltagesensorandamplifierisolation,convertittoabout2.8Vexchangesweakcurrentsignal,thestatorCTA,Cphasecurrentthesecondarycurrentsensorisolation,convertittoabout3.5Vexchangesweakcurrentsignal,theexcitationcurrent（orexcitationvoltagebythevoltagetransmitterinto5Vwithintheweakcurrentsignal,supplycomputerforA/Dsampling.

7,pulseamplification:

DAVRcontrollerCPUproducesixphasepulsebyNPNtransistoramplificationformsixphasedoublepulse,thenthroughrectifierpulseamplificationplateamplificationtotriggerthyristor.

8,logicalloop:

Microcomputerexcitationasmostfunctionsarerealizedbysoftware,externallogiccircuitisverysimple,mainlyistouseseveraldc220vrelaycompleteexternalswitchquantitysignalisolation,fromthescenetodestroythemagneticswitch,themainoilswitch,increaseanddecreasemagneticnode,allpassdc220vrelayisolation,becausethesesignalgeneraltransferdistanceisfarther,andmixinhighvoltagecableditch,dc220voperationtoimproveanti-jammingability.TheisolationoftherelaynodeintoDI/DO,thenthroughlightaftereveryreadincomputer.DAVRswitchquantitybyelectromagneticandoptoelectronicisolating,andensurethearkarehighvoltageinterface,whichisthe24vpowersupplynotelicitcabinetputoneselfinanother'sposition,soastoensurereliability.

3.3highpowerrectifierbridge

DAVR-S1/S2typedigitalmicrocomputerexcitationdeviceadoptshigh-powerSCRthree-phasefullcontrolledrectifierbridge,guaranteedtomeetincludinggeneratorstrongexcitation,theoperationrequirementsofalloperatingconditions.AcsideuseHDseriesknifeswitch,easyaccess.

3.4drop-outandover-voltageprotectiondevice

DAVR-S1/S2typedigitalmicrocomputerexcitationdeviceofdrop-outandover-voltageprotectiondeviceismainlycomposedofDM8Gdrop-outswitchandnonlinearresistanceover-voltageprotectioncircuitcomposition.

Zincoxidenonlineardrop-outresistanceover-voltageprotectioncircuitincludingpeakabsorberSPAandnonlinearresistanceFR1.

1）linearresistanceover-voltageprotectiondevice

Inordertoensurethesafeoperationoftheexcitationsystemmustbeontherotorimplementover-voltageprotection.ForDAVR-S1/S2typedigitalmicrocomputerexcitationdeviceUSESisnonlinearresistanceover-voltageprotectiondevice.

ZnOisknowntobethemostidealdrop-outandovervoltageprotectionmaterials,thecurrentdomesticbasicallyallusethiskindofmaterial.Itmainlyhasthefollowingadvantages:

A）zincoxidevalveplateunitvolumecancapacitybig,cando300j/cm2,singlevalveplatecando20kj/only.

B）protectionperformanceisgood,residualcompressionratioisonly1.5,zincoxideresistanceaftertheopeningofthevoltageisalmostcertainvalue,notwiththecurrentchanges,hasexcellentvolt-ampercharacteristics.

C）leakagecurrentissmall,zincoxidevalveplateleakagecurrentgenerallylessthan50ua,leakagecurrentissmall,innormalworkingconditionsofpowerdissipationissmall.

D）aginglonglife,valveplatecanbeincontinuousrunningvoltageUe=0.75U10mA（namelychargeability0.75）,workin100.

2）accordingtovariousovervoltage,matchingprotectionelementisasfollows:

A）drop-out