Qeb peb, tus qauv pib kho qhov kev cia siab tam sim no
Hauv kev hloov cov excitation tam sim no ntawm lub tshuab hluav taws xob, nws feem ntau tsis ncaj nraim tawm hauv nws qhov Circuit Court rotor. Vim hais tias tam sim no hauv Circuit Court loj, nws tsis yog yooj yim los ua ncaj hloov. Txoj kev siv ntau tshaj yog hloov qhov kev cia siab ntawm qhov exciter kom ua tau raws li cov cai ntawm lub tshuab hluav taws xob. Lub hom phiaj ntawm rotor tam sim no. Cov kev cai muaj xws li hloov qhov kev tawm tsam ntawm qhov excitation Circuit Court ntawm exciter, hloov qhov xav paub ntxiv tam sim no ntawm qhov exciter, hloov lub kaum sab xis ntawm thyristor, thiab cov zoo li.
Ntawm no, qhov tseem ceeb ntawm kev hloov ntawm txoj kev sib tshuam ntawm tus thyristor yog hloov lub kaum thooj ntawm lub thyristor raws li qhov hloov ntawm generator voltage, tam sim no los yog zog qhov zoo tshaj plaws, thiab tom qab ntawd ces qhov excitation tam sim no ntawm generator hloov. Cov cuab yeej no feem ntau muaj li ntawm transistor thiab thyristor hluav taws xob, thiab muaj qhov zoo ntawm rhiab, yoo mov, tsis muaj tsis ua hauj lwm, muaj zis loj zog, me me, thiab lub cev nyhav. Thaum muaj kev huam yuaj, nws yog ib qho ua tau kom txo tau qhov kev siv hluav taws xob overvoltage thiab ua kom nrawm tawg sai.
Qhov kev hloov kho tsis zoo no feem ntau yog tsim los ntawm ib qho kev ntsuas, ib qho chaw sib tshooj, ib chav tsev loj, hloov tsev, kho tsev, chav tsev txwv, thiab lwm lub koom haum. Qhov teeb meem ntsuas (xws li voltage, tam sim no, thiab lwm yam) yog muab piv nrog tus nqi muaj txiaj ntsig tom qab raug hloov los ntawm lub ntsuas tsev, thiab qhov sib piv tau (sib txawv) ua kom nrov zog los ntawm chav tsev ua ntej thiab qhov fais fab amplifying unit, thiab siv tswj kev kho ntawm thyristor. Lub kaum ntse ntse los ua kom tau lub hom phiaj ntawm kev kho lub siab tam sim no ntawm lub tshuab hluav taws xob. Cov kev ua haujlwm ntawm chav tsev synchronization yog ua kom synchronize cov txiaj qij ua kom pom los ntawm cov theem hloov nrog lub zog excitation fais fab ntawm tus thyristor rectifier kom muaj tseeb triggering ntawm silicon tswj.
Kev ua haujlwm ntawm kev hloov kho yog kom cov generators khiav hauj lwm hauv txoj mus tib seem kom faib cov pob tho kev ruaj ntseg thiab ua tau zoo. Chav ruaj ntseg yog ib chav tsev uas tau pib los txhim kho kom ruaj khov ntawm lub hwj chim system. Lub zog tswj kev ua kom muaj zog yog siv los txhim kho kom ruaj khov ntawm kev cia siab. Lub chaw limiting yog muab los tiv thaiv tus generator los ntawm kev khiav hauj lwm raws li kev mob heev lossis kev tsis muaj peev xwm. Nws yuav tsum tau taw qhia tias tsis yog txhua qhov kev tswj tus kheej muaj qhov ntau ntawm cov chaw uas tau piav saum toj no, thiab ib lub chaw tswj hwm muaj ib chav nyob nrog nws cov hauj lwm tshwj xeeb. Qeb plaub, cov khoom thiab lub khoom ntu pabcuam los pab kho qhov kev cia siab
Tsis siv neeg hloov ntawm lub Cheebtsam ntawm qhov excitation ntawm cov organic kawg voltage transformer, tshuab tam sim no transformer, excitation transformer; excitation ntaus ntawv yuav tsum tau muab cov nram qab no, Hoobkas AC380v, Hoobkas DC220v tswj fais fab. Lub Hoobkas siv DC220v los kaw lub hwj chim; nws yuav tsum tau muab cov neeg hauv qab no tuaj yeem tuaj yeem pib. Tsis siv neeg kaw. On-grid (ib feem ntau qhib, ib txwm nquag kaw) nce thiab txo; cov teeb meem nram qab no yuav tsum tau muab, qhov hluav taws xob tshav dav hlau voltage 100V, generator qhov kawg ntawm qhov tam sim no 5A, lub npav siab yog 100V, thiab cov cuab yeej excitation outputs cov nram qab no txuas xov tooj cua; tus excitation tau hloov Flow, poob ntawm magnetism, txawv txav excitation ntaus, lwm yam.
Tsav kev tiv thaiv, kev tiv thaiv thiab lub voj voj voos yog tsim ntawm kev hloov degaussing, sib nqus Circuit Court, kiv cua, qhov kev hloov siab ntawm kev hloov nyiag, excitation over-current, regulator tsis ua, generator abnormality, fais fab transmitter thiab li. Thaum muaj ib qho teeb meem nyob hauv lub tshuab synchronous, ntxiv rau qhov yuav tsum tau tsis muaj qhov sib txawv, qhov sib txawv ntawm daim teb yuav tsum yog qhov zoo siab los txo cov rotor magnetic field kom sai li sai tau, thiab xyuas kom meej tias lub sij hawm rotor puas yog luv luv li sai tau, uas yog lub ntsiab ua rau lub cuab yeej siv. Nta. Raws li qhov tsis muaj zog excitation voltage, nws muab faib tau rau hauv txoj kev tawm ua pa tsis sib haum thiab nonlinear tsis ua hauj lwm demagnetization.
Nyob rau hauv kaum xyoo dhau los, vim tshwm sim thiab siv cov tshiab technologies, cov txheej txheem tshiab thiab cov cuab yeej tshiab, hom kev tawm tsam ntawm generators tau tsim kho thiab tsim kho. Nyob rau hauv lub nam ntawm automatic hloov ntawm qhov excitation ntaus ntawv, ntau yam tshiab hom ntawm kev kho li tau tsim tsis tu ncua tsim thiab nce. Txij li cov kev hloov kho excitation dais los ntawm software ntawm lub tshuab computer microcomputer muaj qhov zoo qhov zoo, ntau lub teb chaws tab tom tsim thiab kuaj lub digital automatic hloov excitation ntaus ntawv uas yog ib lub tshuab computer microcomputer thiab cov khoom siv sab nraud, thiab cov cuab yeej hloov kho tau Adapt mus rau qhov zoo tshaj plaws kev hloov. Tus qauv ntawm txoj kev tau txais kev cia siab tam sim no yog hu ua kev ua kom poob siab. Tam sim no, hom kev ua kom muaj kev sib tw tau muab faib ua ob pawg: ib qho yog DC exciter system siv lub DC generator raws li lub hwj chim ua kom nrov zog; qhov sib npaug yog ib qho kev ua kom tsis muaj zog uas siv cov twj siv twj ywm los hloov AC mus rau hauv DC thiab mam li muab kev cia siab. Cov lus piav qhia yog raws li nram no:
1. Lub DC exciter excitation DC exciter feem ntau yog coaxial nrog lub synchronous generator, thiab yog siv rau kev xaav los yog tawg. Thaum siv hom tshuaj siv excitation, qhov excitation tam sim no ntawm qhov exciter yog nkag los ntawm lwm lub coaxial DC generator hu ua tus thib ob exciter.
2. Tsuas pub muaj txoj hlua ntawm sab nraud Muaj peb txoj kev siv rau tib qho axis, uas yog lub ntsiab ntawm lub tshuab hluav taws xob, AC lub ntsiab exciter thiab AC pab cuam exciter. Qhov kev cia siab tam sim no ntawm tus pabcuam exciter yog pib tau los ntawm ib lub zog DC sab nrauv, thiab hloov dua siab tshiab rau nws tus kheej-ua kom raug (qee zaum siv lub tshuab hluav taws xob txuas mus tas li) tom qab qhov teeb tsa hluav taws xob. Tam sim no tso zis ntawm lub koom haum pabcuam yog tsim los ntawm cov thyristor zoo li qub thiab nkag mus rau lub ntsiab exciter, thiab AC tso zis tawm ntawm lub ntsiab exciter raug kho rectified los ntawm cov chaw ruaj ruaj peb-theem bridge silicon rectifier thiab nkag mus rau qhov excitation winding ntawm lub ntsiab generator.
3. Rectifier Excitation Lub cav DC ntawm qhov rectifier zoo li qub yuav tsum dhau los ntawm txhuam thiab collector nplhaib kom xa mus rau kab teb ncig ua teb. Rau cov peev txheej loj synchronous, qhov kev cia siab tam sim no nce mus txog ob peb txhiab ampees, uas ua rau muaj kev ntxhov siab ntau dua ntawm lub nplhaib. Yog li ntawd, nyob rau hauv ib qho loj-peev synchronous generator, lub teb chaws ua kom tsis muaj zog uas tsis tas yuav tsum txhuam thiab ib lub nplhaib collector feem ntau siv. Lub ntsiab exciter yog ib hom khoom nta hom peb-theem synchronous generator. Lub caij hloov tam sim no ntawm txoj kev sib hloov yog rov los ntawm ib lub pob zeb sib tw ua ke nrog lub taub hau loj, thiab ncaj qha mus rau rotor excitation winding ntawm lub ntsiab generator. Lub excitation tam sim no ntawm AC lub ntsiab exciter yog nkag los ntawm lub coaxial AC exciter los ntawm lub chaw ruaj ruaj thyristor rectifier. Vim hais tias qhov kev tshem tawm no tshem tawm lub nplhaib thiab qhov txhuam kev txhuam, nws kuj yog hu ua txhuam kom tsis muaj zog.
