Tiv thaiv kom tsis txhob muaj luv luv ntawm theem mus rau theem uas tshwm sim los ntawm cov xov hlau stator xoob
Lub stator winding yuav tsum tau khi rau hauv qhov, thiab qhov kev sim peev xwm ntawm qhov yuav tsum ua tau raws li qhov yuav tsum tau ua.
Tshawb xyuas tsis tu ncua seb qhov kawg ntawm lub stator winding puas poob, xoob lossis hnav.
Tiv thaiv kom tsis txhob muaj kev puas tsuaj rau cov rwb thaiv tsev ntawm stator winding
Txhawb kev tshuaj xyuas cov xov hlau ntawm lub nplhaib thiab cov rwb thaiv tsev ntawm cov tshuab hluav taws xob loj, thiab ua qhov kev sim tsis tu ncua raws li cov kev cai ntawm "Cov Cai Tswj Xyuas Kev Ntsuas rau Cov Khoom Siv Fais Fab" (DL / T 596-1996).
Tshawb xyuas qhov nruj ntawm lub stator core ntsia hlau ntawm lub generator tsis tu ncua. Yog tias qhov nruj ntawm lub core ntsia hlau tsis sib xws nrog lub Hoobkas tsim tus nqi, nws yuav tsum tau daws raws sijhawm. Tshawb xyuas tsis tu ncua tias cov ntawv hlau silicon ntawm lub generator tau teeb tsa zoo, tsis muaj qhov cim ntawm overheating, thiab dovetail groove tsis muaj kev tawg thiab disengagement. Yog tias cov ntawv hlau silicon plam tawm, nws yuav tsum tau daws raws sijhawm.
Tiv thaiv kom tsis txhob muaj luv luv ntawm qhov tig ntawm lub rotor winding.
Yuav tsum tau ua qhov kev ntsuam xyuas luv luv ntawm dynamic thiab static inter-turn short-circuit rau lub tshuab hluav taws xob thaum lub sijhawm txij nkawm, thiab lub rotor winding dynamic inter-turn short-circuit online monitoring device tuaj yeem ntsia tau yog tias muaj xwm txheej tso cai, kom thiaj li nrhiav tau qhov tsis zoo li qub sai li sai tau.
Saib xyuas qhov kev co thiab kev hloov pauv ntawm lub zog reactive ntawm cov generators thaum ua haujlwm txhua lub sijhawm. Yog tias qhov kev co nrog nrog kev hloov pauv ntawm lub zog reactive, lub generator rotor yuav muaj qhov luv luv ntawm kev sib hloov. Lub sijhawm no, lub rotor tam sim no raug tswj ua ntej. Yog tias qhov kev co nce ntxiv sai sai, lub generator yuav tsum nres tam sim ntawd.
Txhawm rau tiv thaiv kev kub hnyiab hauv zos kom tsis txhob muaj kev puas tsuaj rau lub tshuab hluav taws xob
Lub qhov hluav taws xob ntawm lub tshuab hluav taws xob thiab qhov txuas ntawm qhov nruab nrab ntawm cov hlau yuav tsum txhim khu kev qha. Thaum lub sijhawm ua haujlwm ntawm lub tshuab, kev ntsuas kub ntawm cov duab infrared yuav tsum tau ua tsis tu ncua rau cov xov hluav taws xob sib cais los ntawm qhov excitation mus rau lub cuab yeej static excitation, cov xov hluav taws xob los ntawm lub cuab yeej static excitation mus rau lub nplhaib rotor, thiab lub nplhaib rotor slip.
Tshawb xyuas qhov sib cuag ntawm cov neeg sib cuag dynamic thiab static ntawm lub tshuab hluav taws xob nres riam nres, thiab pom tias lub caij nplooj ntoos hlav compression xoob lossis tus ntiv tes sib cuag ib leeg tsis sib luag nrog lwm tus ntiv tes sib cuag thiab lwm yam teeb meem yuav tsum tau daws raws sijhawm.
Thaum lub tshuab hluav taws xob rwb thaiv tsev kub dhau lub tswb ceeb toom, qhov laj thawj yuav tsum tau soj ntsuam, thiab yog tias tsim nyog, lub tshuab yuav tsum raug kaw kom tshem tawm qhov tsis zoo.
Thaum lub tshuab tshiab raug muab tso rau hauv kev tsim khoom thiab lub tshuab qub raug kho dua tshiab, yuav tsum tau them sai sai kom paub tseeb tias qhov kev sib txuas ntawm lub stator hlau tseem ceeb thiab seb tus ntiv tes ntawm cov hniav puas raug cuam tshuam, tshwj xeeb tshaj yog cov hniav ntawm ob qho kawg. khiav. Kev sim hlau poob yuav tsum tau ua thaum xa khoom lossis thaum muaj kev tsis ntseeg txog lub rwb thaiv tsev tseem ceeb.
Thaum lub sijhawm tsim khoom, kev thauj mus los, kev teeb tsa thiab kev txij nkawm, yuav tsum tau ceev faj kom tiv thaiv cov khoom me me xws li vuam slag lossis cov hlau chips kom tsis txhob poob rau hauv qhov cua ntawm lub stator core.
Tiv thaiv kev puas tsuaj rau lub tshuab hluav taws xob
Thaum ua haujlwm hauv lub qhov cua ntawm lub tshuab hluav taws xob, yuav tsum muaj ib tus neeg tshwj xeeb los saib xyuas qhov nkag ntawm lub tshuab hluav taws xob. Tus neeg teb xov tooj yuav tsum hnav khaub ncaws ua haujlwm thiab khau ua haujlwm uas tsis muaj hlau. Ua ntej nkag mus rau hauv lub tshuab hluav taws xob, yuav tsum coj txhua yam khoom txwv tsis pub tawm, thiab cov khoom uas coj los yuav tsum suav thiab sau cia. Thaum ua tiav thiab rho tawm haujlwm, cov khoom muag yuav tsum raug kom ntseeg tau tias tsis muaj seem. Lub ntsiab lus tseem ceeb yog tiv thaiv cov hlau khib nyiab xws li ntsia hlau, txiv ntoo, cov cuab yeej, thiab lwm yam kom tsis txhob raug tso tseg hauv lub stator. Tshwj xeeb, yuav tsum tau kuaj xyuas kom meej ntawm qhov sib txawv ntawm cov kauj kawg thiab qhov chaw ntawm cov involutes sab saud thiab sab qis.
Cov khoom siv tiv thaiv tseem ceeb thiab cov khoom siv pabcuam yuav tsum tau kuaj xyuas tas li thiab muab tso rau hauv kev ua haujlwm li qub. Thaum lub tshuab ntsuas kev ua haujlwm tseem ceeb thiab cov khoom siv ntawm lub tshuab ua haujlwm tsis ua haujlwm lossis ua haujlwm tsis raug, txwv tsis pub pib lub tshuab. Thaum lub tshuab tsis tswj tau thaum lub sijhawm ua haujlwm, nws yuav tsum nres.
Ua kom muaj zog rau kev hloov kho ntawm hom kev ua haujlwm ntawm lub tshuab, thiab sim zam kom tsis txhob muaj thaj chaw co siab lossis thaj chaw cavitation ntawm kev ua haujlwm ntawm lub tshuab.
Tiv thaiv kom cov generator bearing tsis txhob hlawv cov vuas
Lub thrust bearing nrog lub tshuab nqus roj siab yuav tsum ua kom ntseeg tau tias yog tias lub tshuab nqus roj siab ua tsis tau zoo, lub thrust bearing yuav tsum tsis txhob muab tso rau hauv lub tshuab nqus roj siab kom nres tau zoo yam tsis muaj kev puas tsuaj. Lub tshuab nqus roj siab yuav tsum tau kuaj xyuas tsis tu ncua kom paub tseeb tias nws ua haujlwm tau zoo.
Cov roj ntawm cov roj lubricating yuav tsum muaj kev saib xyuas tsis siv neeg thiab yuav tsum tau kuaj xyuas tsis tu ncua. Cov roj lubricating yuav tsum tau kuaj xyuas tsis tu ncua, thiab qhov tsis zoo ntawm cov roj yuav tsum tau kho sai li sai tau, thiab lub tshuab yuav tsum tsis txhob pib yog tias qhov zoo ntawm cov roj tsis tsim nyog.
Qhov kub ntawm dej txias, qhov kub ntawm roj, kev saib xyuas qhov kub ntawm pobzeb thiab cov khoom siv tiv thaiv yuav tsum raug thiab txhim khu kev qha, thiab qhov tseeb ntawm kev ua haujlwm yuav tsum tau txhim kho.
Thaum cov xwm txheej ua haujlwm tsis zoo ntawm lub tshuab ua rau lub bearing puas tsuaj, nws yuav tsum tau kuaj xyuas kom meej tias lub bush bearing zoo ua ntej rov pib dua.
Tshawb xyuas cov ntaub thaiv kabmob tsis tu ncua kom paub tseeb tias tsis muaj qhov tsis zoo xws li kev tawg thiab tawg, thiab qhov tiav ntawm qhov chaw sib cuag ntawm cov ntaub thaiv kabmob, lub dab tshos thiab daim iav yuav tsum ua tau raws li qhov yuav tsum tau tsim. Rau Babbitt cov ntaub thaiv kabmob, qhov sib cuag ntawm cov hlau thiab cov ntaub thaiv yuav tsum tau kuaj xyuas tsis tu ncua, thiab kev sim tsis puas tsuaj yuav tsum tau ua yog tias tsim nyog.
Lub voj voog tiv thaiv tam sim no ntawm lub ncej yuav tsum tau muab tso rau hauv kev ua haujlwm ib txwm, thiab lub tswb ceeb toom tam sim no ntawm lub ncej yuav tsum tau kuaj xyuas thiab daws raws sijhawm, thiab lub tshuab raug txwv tsis pub khiav yam tsis muaj kev tiv thaiv tam sim no ntawm lub ncej ntev.
Tiv thaiv kom tsis txhob xoob ntawm cov khoom siv hydro-generator
Cov khoom sib txuas ntawm cov khoom tig yuav tsum tiv thaiv kom tsis txhob xoob thiab yuav tsum tau kuaj xyuas tsis tu ncua. Lub kiv cua tig yuav tsum tau teeb tsa kom ruaj khov, thiab cov hniav yuav tsum tsis txhob tawg thiab tsis hloov pauv. Lub phaj cua yuav tsum tau teeb tsa kom ruaj khov thiab khaws qhov deb txaus ntawm lub stator bar.
Yuav tsum tau kuaj xyuas lub stator (xws li lub thav duab), qhov chaw rotor, qhov chaw stator bar wedge, thiab lwm yam tsis tu ncua. Cov ntsia hlau kho, stator foundation bolts, stator core bolts thiab tension bolts ntawm lub turbine generator frame yuav tsum tau khi kom zoo. Yuav tsum tsis txhob muaj looseness, tawg, deformation thiab lwm yam phenomena.
Hauv qhov cua ntawm lub tshuab hluav taws xob hydro-generator, nws yog ib qho tsim nyog kom tsis txhob siv cov ntaub ntawv uas yooj yim rau cua sov hauv qab lub zog hluav taws xob lossis cov ntaub ntawv txuas hlau uas tuaj yeem nqus tau los ntawm hluav taws xob. Txwv tsis pub, yuav tsum muaj kev tiv thaiv zoo, thiab lub zog yuav tsum ua tau raws li qhov yuav tsum tau ua.
Tshawb xyuas lub tshuab nres tsheb ntawm lub tshuab hluav taws xob hydro-generator tsis tu ncua. Cov nres thiab cov nplhaib nres yuav tsum tiaj tus tsis muaj qhov tawg, cov ntsia hlau kho yuav tsum tsis txhob xoob, cov khau nres yuav tsum tau hloov pauv raws sijhawm tom qab lawv hnav, thiab cov nres thiab lawv cov cua thiab roj systems yuav tsum tsis muaj cov plaub hau pins. , qhov chaw hlua, cua xau thiab roj xau thiab lwm yam teeb meem uas cuam tshuam rau kev ua haujlwm nres. Tus nqi teeb tsa ceev ntawm lub voj voog nres yuav tsum tau kuaj xyuas tsis tu ncua, thiab nws yog txwv tsis pub siv lub tshuab nres ntawm kev ceev ceev.
Tshawb xyuas lub cuab yeej sib dhos tsis tu ncua kom tiv thaiv lub tshuab hluav taws xob hydro-generator kom tsis txhob txuas nrog lub grid asynchronously.
Kev tiv thaiv tiv thaiv cov teeb meem hauv av ntawm lub tshuab hluav taws xob rotor
Thaum lub rotor winding ntawm lub generator raug grounded ntawm ib qho taw tes, qhov yuam kev thiab qhov xwm txheej yuav tsum tau txheeb xyuas tam sim ntawd. Yog tias nws yog ib qho hlau ruaj khov grounding, nws yuav tsum tau nres tam sim ntawd.
Tiv thaiv cov generators kom tsis txhob txuas nrog lub grid asynchronously
Lub khoos phis tawj tsis siv neeg quasi-synchronization ntaus ntawv yuav tsum tau ntsia nrog kev tshuaj xyuas synchronization ywj pheej.
Rau cov chav tshiab muab tso rau hauv kev tsim khoom, kho dua tshiab thiab sib dhos ua ke (suav nrog voltage AC circuit, tswj DC circuit, tag nrho-kauj ruam meter, automatic quasi-synchronizing device thiab synchronizing handle, thiab lwm yam) uas tau hloov kho lossis lawv cov khoom siv tau hloov pauv, cov haujlwm hauv qab no yuav tsum tau ua ua ntej txuas rau lub grid thawj zaug: 1) Ua qhov kev kuaj xyuas thiab xa cov cuab yeej thiab lub synchronous circuit; 2) Siv lub generator-transformer teeb tsa nrog tsis muaj-load busbar boost test los xyuas qhov tseeb ntawm lub synchronous voltage secondary circuit, thiab xyuas tag nrho cov kauj ruam rooj. 3) Ua qhov kev xeem synchronous cuav ntawm lub chav, thiab qhov kev xeem yuav tsum suav nrog kev sib dhos ua ke thiab kev sib dhos ua ke tsis siv neeg ntawm lub circuit breaker, synchronous blocking thiab lwm yam.
Tiv thaiv kev puas tsuaj ntawm lub tshuab hluav taws xob los ntawm kev ua tsis tiav ntawm lub kaw lus excitation
Ua raws li qhov chaw xa khoom qhov kev txwv qis thiab PSS teeb tsa cov cai rau cov generators, thiab txheeb xyuas lawv thaum lub sijhawm kho dua tshiab.
Qhov kev txwv tsis pub dhau thiab kev tiv thaiv kev tiv thaiv dhau ntawm qhov kev tswj hwm kev txhawb siab tsis siv neeg yuav tsum nyob hauv cov nqi tso cai los ntawm lub chaw tsim khoom, thiab yuav tsum tau kuaj xyuas tsis tu ncua.
Thaum lub channel tsis siv neeg ntawm lub excitation regulator tsis ua haujlwm, lub channel yuav tsum tau hloov thiab muab tso rau hauv kev ua haujlwm raws sijhawm. Nws yog txwv tsis pub rau lub generator khiav ntev ntev raws li kev tswj hwm kev txhawb nqa phau ntawv. Thaum lub sijhawm ua haujlwm ntawm kev tswj hwm kev txhawb nqa phau ntawv, thaum kho qhov load ntawm lub generator, qhov reactive load ntawm lub generator yuav tsum tau kho kom zoo kom tiv thaiv lub generator los ntawm kev poob nws qhov ruaj khov zoo li qub.
Thaum qhov kev hloov pauv ntawm lub zog fais fab yog + 10% ~ -15% thiab qhov kev hloov pauv zaus yog + 4% ~ -6%, lub kaw lus tswj kev txhawb nqa, cov hloov pauv thiab lwm yam kev ua haujlwm tuaj yeem ua haujlwm li qub.
Thaum pib, nres thiab lwm yam kev sim ntawm lub tshuab, yuav tsum ntsuas kom txiav tawm qhov kev txhawb zog ntawm lub tshuab hluav taws xob ntawm qhov ceev qis ntawm lub tshuab.
Lub sijhawm tshaj tawm: Lub Peb Hlis-01-2022
