Dab tsi yuav tsum tau nco ntsoov thaum quasi-synchronized paralleling ntawm lub tshuab hluav taws xob sau?
Quasi-simultaneous koom haum yog kev sib koom tes.Txawm hais tias kev ua haujlwm yog du lossis lwm yam muaj kev koom tes zoo nrog kev paub ntawm tus neeg teb xov tooj.Txhawm rau tiv thaiv kev sib koom ua ke nyob rau lub sijhawm sib txawv, kev ua raws li 3 qhov xwm txheej tsis raug tso cai kaw.
1. Thaum lub ntsis ntawm lub rooj synchronization leaps, nws tsis tau qhib kaw, vim qhov tseeb tias tej zaum yuav muaj ib daim kab xev nyob rau hauv lub rooj synchronization, uas tsis tuaj yeem pom cov teeb meem thaum uas tsim nyog.
2. Thaum lub rooj sib txoos tig ceev ceev, nws qhia tau hais tias qhov sib txawv ntawm qhov sib txawv ntawm lub tshuab hluav taws xob tau npaj ua ke thiab cov khoom sib txawv ntawm lwm lub tshuab hluav taws xob yog qhov loj heev.Vim lub fact tias lub sij hawm kaw ntawm lub Circuit Court breaker yog tsis yooj yim sua kom paub, lub Circuit Court breaker feem ntau tsis kaw ntawm lub synchronization point.Tsis pub kaw.
3. Yog hais tias qhov ntxeev ntawm lub rooj synchronizing nres ntawm qhov chaw sib koom ua ke, nws tsis raug tso cai kaw qhov hloov thaum nws nres.Qhov no yog vim tias qhov zaus ntawm ib qho ntawm lub tshuab hluav taws xob tsim kev hloov pauv tam sim ntawd thaum lub sijhawm kaw ntawm lub breaker, nws muaj peev xwm rau lub breaker kaw ntawm qhov tsis sib xws.
4. Yuav ua li cas kho qhov rov qab fais fab kev xav ntawm cov kab ke sib txuas?
Thaum 2 lub tshuab hluav taws xob sib txuas nrog tsis muaj tons, yuav muaj teeb meem ntawm qhov sib txawv ntawm qhov sib txawv nrog rau qhov sib txawv ntawm qhov sib txawv ntawm ob lub tshuab hluav taws xob.Thiab ntawm cov cuab yeej saib xyuas (ammeter, lub ntsuas hluav taws xob, lub zog ntsuas hluav taws xob) ntawm ob lub tshuab, qhov tseeb rov qab fais fab xwm txheej tshwm sim, ib qho yog lub zog thim rov qab los ntawm qhov tsis sib xws (tsis tu ncua), thiab lwm qhov yog tshwm sim los ntawm qhov sib txawv voltage. .Inverted txoj haujlwm, nws qhov kev hloov kho yog ua raws li:
1. Kev hloov kho ntawm qhov rov qab fais fab tshwm sim tshwm sim los ntawm qhov zaus: yog tias qhov zaus ntawm ob lub tshuab tsis sib npaug, nrog rau qhov sib txawv loj, nws yuav tsum tau muab tso rau hauv qhov ntsuas (ammeter, lub ntsuas hluav taws xob), qhov tam sim no ntawm lub ntaus ntawv nrog kev kub ceev qhia tau hais tias muaj txiaj ntsig zoo, nrog rau lub ntsuas hluav taws xob qhia tias muaj txiaj ntsig zoo.Lub zog, ntawm qhov tod tes, tam sim no qhia tau hais tias muaj txiaj ntsig tsis zoo, thiab lub zog tseem qhia tau tias muaj txiaj ntsig tsis zoo.Tam sim no, hloov tus nqi (ntau zaus) ntawm ib qho ntawm cov chav nyob, thiab hloov nws raws li qhov ntsuas ntawm lub ntsuas hluav taws xob, thiab hloov lub cim ntawm lub ntsuas hluav taws xob kom tsis muaj tseeb.Ua kom lub zog ntsuas ntawm ob chav nyob tsis muaj, yog li ntawd qhov kev sib hloov pauv (qhov tsis tu ncua) ntawm ob lub cuab yeej yog qhov zoo ib yam.Txawm li cas los xij, thaum lub ammeter tseem qhia tau tam sim no, qhov no yog qhov rov qab fais fab tshwm sim los ntawm qhov sib txawv voltage.
2. Kev hloov kho ntawm qhov rov qab fais fab tshwm sim tshwm sim los ntawm qhov sib txawv ntawm qhov voltage: thaum lub hwj chim ntsuas qhov taw qhia ntawm ob lub tshuab hluav taws xob teeb yog ob qho tib si tsis muaj, thiab lub ammeter tseem muaj qhov taw qhia tam sim no (uas yog, ib qho inverted thiab ib qho txiaj ntsig qhia), qhov voltage kev hloov kho ntawm cov generator teeb tuaj yeem hloov kho.Thaum hloov lub pob qhov rooj, nws nyob ntawm qhov taw qhia ntawm lub ammeter thiab lub hwj chim nam.Tshem tawm cov cim ntawm lub ammeter (uas yog, kho nws kom tsis muaj tseeb).Tom qab lub ammeter tsis muaj qhov taw qhia, hloov kho lub zog rau lub lag luam ntawm ntau dua 0.5 nyob ntawm qhov kos npe ntawm lub zog ntsuas ntsuas.Feem ntau, nws tuaj yeem hloov kho li ntawm 0.8, uas yog lub xeev zoo tshaj plaws.
5. Generator kev ruaj ntseg Circuit Court
1. Rov qab fais fab rov qab qhov kev xav tau coj los ntawm qhov sib txawv ntawm tus nqi (tsis tu ncua) thiab qhov hluav taws xob ntawm lub tshuab hluav taws xob sau, uas yog, ib lub tshuab hluav taws xob sib sau muaj lub zog zoo, thaum ntau yam khoom sib sau muaj lub zog tsis zoo.Qhov ntawd yog los thov, lub kaw lus nrog lub zog tsis zoo los ua ib tons tam sim no (qhov zaus ntawm qhov system no tsawg thiab qhov kev sib hloov tsis sib haum).Thaum cov voltages tsis zoo ib yam, lub kaw lus nrog high voltage yuav yeej muab ib tug teb tam sim no thiab kuj reactive voltage rau lub ntaus ntawv nrog txo voltage (lub ammeter ntawm lub chav tsev no qhia tau hais tias cov kev taw qhia zoo), uas ntxiv ib theem tswj system nyob rau hauv lub fais fab mov system.Chav tsev uas tsis tshua muaj hluav taws xob xaus mus ua ib qho loj heev nyob rau lub sijhawm no, tau txais lub zog loj tam sim no kom muaj qhov sib npaug ntawm ob chav nyob (lub ammeter ntawm qhov system no qhia txog kev rov qab).Thaum soj ntsuam, kho qhov hluav taws xob ntawm ib chav tsev ntau dua lossis qis dua qhov hluav taws xob ntawm lwm qhov system, ua rau lub cuab yeej muaj lub zog rov qab uas twb muaj lawm, thiab nws txoj haujlwm tam sim no tau ua nrog 20% ntawm cov ntsuas uas twb muaj lawm.Lub zog rov qab relay khiav, mus ncig, thiab lub tswb, tseem tsis tawm.
2. Overcurrent: Lub zog ntsuas ntawm lub tshuab hluav taws xob tam sim no yog qhov tseeb, thiab nws lub peev xwm overload yog qhov tsawg heev, feem ntau hais txog 5% ntawm lub zog ranked.Lub sijhawm thauj khoom tso cai yog 15 ~ 30 feeb, thiab qhov siab tshaj plaws tsis ntau tshaj 60 mins.Lub tshuab hluav taws xob teeb yuav ua kom sov, thiab cov hlua hluav taws xob kuj yuav raug txo kom tsawg, uas yuav txo tau qhov kev pab cuam lub neej.Vim li ntawd, yog tias tsis muaj qhov tshwj xeeb xav tau thaum tsim kev tiv thaiv overcurrent, kev tiv thaiv overcurrent tuaj yeem raug teeb tsa ntawm 110% ntawm cov ntsuas tam sim no.Thoob plaws hauv qhov kev ntsuas ntawm kev thauj khoom, nqa qhov tam sim no mus rau 110% ntawm cov ntsuas tam sim no, nrog rau cov overcurrent relay yuav yeej ua.Kev mus ncig, tswb system, tsis muaj kaw.
3. Overvoltage: Thaum lub tshuab hluav taws xob teeb tau siv nyob rau hauv parallel, ib qho ntawm feem ntau ntshai yog tias lub zog hluav taws xob yuav yeej oscillate.Sai li qhov voltage ntawm lub oscillating system nce, nws yog ib qho yooj yim los ua kom lub rwb thaiv tsev tawg ntawm cov cuab yeej hluav taws xob thiab cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob thiab cov cuab yeej hluav taws xob yuav raug immobilized nrog ib leeg.Rau lub hom phiaj no, lub tshuab hluav taws xob teeb tsa siv nyob rau hauv qhov sib npaug yog outfitted nrog kev tiv thaiv overvoltage, thiab nws cov nqi teeb tsa yog 105% ntawm qhov ntsuas hluav taws xob zoo tshaj plaws.Short-circuit tshaj-voltage relay, mus txawv tebchaws thiab tawm, tswb ua haujlwm.
Post lub sij hawm: Dec-30-2022