Dab tsi yog qhov kev ua haujlwm ntawm cov hluav taws xob resonant circuit? Wuhan UHV tshwj xeeb hauv kev tsim khoomseries resonant khoom siv, nrog ntau yam khoom xaiv thiab kev kuaj hluav taws xob. Thaum nrhiavseries resonant khoom siv, xaiv Wuhan UHV.
Raws li lub npe qhia, series reactor yog hais txog lub reactor (inductor) txuas nrog nyob rau hauv ib lub voj voog. Nyob rau hauv kev lag luam ntawm reactive hwj chim them nyiaj thiab harmonic tswj, ib tug series reactor feem ntau yog hais txog lub reactor txuas nrog series nrog ib tug capacitor. Tom qab lub reactor thiab capacitor txuas nrog nyob rau hauv series, lawv tsim ib tug resonant Circuit Court, uas plays lub luag hauj lwm nyob rau hauv harmonic tshem tawm los yog lim. Lub luag haujlwm ntawm lub reactor nyob rau hauv lub resonant Circuit Court yog raws li nram no:
1.1 Txo qhov surge ntau thiab surge zaus ntawm lub txhab nyiaj capacitor. Txo cov surge ntau thiab surge zaus ntawm lub txhab nyiaj capacitor los tiv thaiv cov capacitors thiab pab txhawb kev xaiv cov khoom txhawb nqa. Tom qab txhim kho lub reactor series, kaw inrush tam sim no tuaj yeem raug tshem tawm mus rau hauv qab 1+square root ntawm reciprocal ntawm tus nqi reactance. Lub teb chaws tus qauv GB50227-2008 xav kom lub inrush tam sim no yuav tsum raug txwv kom tsawg tshaj li 20 npaug ntawm qhov ntsuas tam sim no ntawm lub capacitor (feem ntau nyob ib ncig ntawm 10 zaug). Txhawm rau kom tsis txhob muaj kev sib haum xeeb (harmonic traction), nws yog qhov yuav tsum tau ua kom cov volt ampere yam ntxwv ntawm cov reactor series raws li linear li sai tau. Thaum lub network harmonics me me, siv cov reactors uas txwv inrush tam sim no; Tus nqi reactance ntawm ib ncig ntawm 0.1% -1% tuaj yeem txwv qhov inrush tam sim no kom tsawg dua 10 npaug ntawm qhov ntsuas tam sim no, txo qis qhov poob ntawm lub reactor. Ntxiv mus, lub reactor muaj ib tug me me ntim, occupies ib tug me me cheeb tsam, thiab yog ib qho yooj yim rau nruab nyob rau hauv lub capacitor txee. Kev siv hom reactor no yog ob qho tib si kev lag luam thiab txuag hluav taws xob.
1.2 Tsim kom muaj kev sib txuas ua ke nrog lub txhab nyiaj capacitor los lim tawm cov yam ntxwv subharmonics. Tom qab tag nrho kho qhov inductive reactance ntawm series lim reactor thiab lub capacitive reactance ntawm lub capacitor, lub AC lim nrog cov yam ntxwv sub harmonics yog tsim los lim tawm ib co yam ntxwv sub harmonics, yog li txo qhov voltage distortion ntawm sub harmonic nyob rau hauv lub tsheb npav, txo tus yam ntxwv sub harmonic tam sim no ntawm kab, thiab kev txhim kho lub hwj chim zoo ntawm lub network.
1.3 Tsim ib feem resonant Circuit Court nrog lub txhab nyiaj capacitor kom tshem tawm cov yam ntxwv subharmonics. Qhov yuav tsum tau ua ntej yog kom muaj kev nkag siab meej txog qhov teeb meem sib haum xeeb hauv daim phiaj hluav taws xob, txheeb xyuas seb puas muaj cov khoom siv kho kom raug loj, hluav taws xob arc rauv, dov mills thiab lwm yam khoom uas tuaj yeem tsim kom muaj kev sib haum xeeb hauv cov neeg siv hluav taws xob ib puag ncig, thiab seb puas muaj siab - ua haujlwm siab -voltage transformers thiab motors nrog kev ua haujlwm tsis zoo. Sim ntsuas tus nqi tiag tiag ntawm kev sib haum xeeb hauv daim phiaj hluav taws xob ntau li ntau tau, thiab tom qab ntawd teeb tsa cov reactors tsim nyog raws li cov khoom sib haum xeeb tiag tiag.
1.4 Nce luv-circuit impedance, txo luv-circuit peev, thiab txo luv-circuit tam sim no. Lub reactive fais fab nyiaj them ceg yog nruab nrog ib tug series reactor ua ntej. Thaum muaj qhov ua txhaum ntawm lub capacitor, xws li capacitor phaj tawg lossis hauv av tawg, lub kaw lus muab luv luv -circuit tam sim no los ntawm qhov system impedance thiab series reactor impedance. Raws li qhov impedance ntawm series reactor loj dua qhov system impedance, nws ua tau zoo txo qhov luv -circuit peev xwm ntawm lub capacitor thaum lub sij hawm luv luv -circuit faults, xyuas kom meej tias lub Circuit Court breaker yuav disconnect luv luv-circuit tam sim no thiab kev txhim kho kev nyab xeeb thiab stability ntawm lub system.
1.5 Txo qhov tso tawm tam sim no los ntawm lub txhab nyiaj capacitor mus rau lub txhab nyiaj tsis zoo los tiv thaiv lub hwj chim capacitor. Thaum lub reactive fais fab nyiaj them nyiaj capacitor bank nyob rau hauv lub lag luam muaj ntau ceg, yog hais tias ib tug ntawm cov capacitor tsis ua hauj lwm, lub lwm yam khiav capacitor bank yuav tso tawm los ntawm faulty capacitor. Series reactors tuaj yeem txo qhov kev tso tawm no tau zoo thiab ua kom muaj peev xwm ntawm cov cuab yeej tiv thaiv txiav tawm lub txhab nyiaj tsis zoo.
1.6 Txo qhov hloov pauv tam sim no ntawm lub txhab nyiaj capacitor thiab txo qis ntawm qhov kev hloov pauv ntawm cov txheej txheem inrush tam sim no tau txais txiaj ntsig zoo rau lub arc extinguishing ntawm tus contactor. Thaum lub sij hawm tus txheej txheem ntawm switching capacitors nrog contactors, inrush tam sim no generated. Series reactors tuaj yeem cuam tshuam cov txheej txheem ntu ntu ntawm kev khiav haujlwm tam sim no, uas muaj txiaj ntsig zoo rau kev cuam tshuam ntawm kev sib cuag contactor, tsis txhob muaj kev cuam tshuam ntawm arc thiab ua rau overvoltage thaum lub sijhawm ua haujlwm. Txo cov amplitude ntawm overvoltage, tiv thaiv capacitors, thiab tsis txhob overvoltage tawg los yog rwb thaiv tsev laus.
1.7 Txo qhov amplitude ntawm overvoltage tshwm sim los ntawm kev khiav hauj lwm capacitor bank kom tsis txhob overvoltage tiv thaiv nyob rau hauv daim phiaj fais fab. Thaum lub sij hawm tus txheej txheem ntawm switching capacitor nrog contactors, ua hauj lwm overvoltages yog generated. Series reactors tuaj yeem tiv thaiv qhov tshwm sim ntawm kev sib cuag tawg hauv contactors, txo qhov amplitude ntawm kev ua haujlwm overvoltages, tiv thaiv capacitors, thiab tsis txhob overvoltage breakdown los yog ceev rwb thaiv tsev laus. Nrog rau kev siv dav dav thiab kev tsim hluav taws xob hluav taws xob thev naus laus zis, ntau cov khoom siv hluav taws xob tsis muaj hluav taws xob tau ntxiv rau cov khoom siv hluav taws xob, xws li qis-voltage me me peev xwm hauv tsev thiab siab-voltage loj muaj peev xwm muaj AC / DC hloov dua siab tshiab, tshwj xeeb tshaj yog siv cov inverters zoo li qub. Raws li lawv ua haujlwm hauv kev hloov pauv, lawv tuaj yeem ua rau muaj kev cuam tshuam ntawm qhov tam sim no thiab qhov hluav taws xob waveforms hauv daim phiaj hluav taws xob, ua rau muaj kev sib haum xeeb "kev ua qias tuaj" ntawm daim phiaj hluav taws xob. Lwm qhov laj thawj tseem ceeb ntawm kev tsim kev sib haum xeeb "kev ua qias tuaj" hauv daim phiaj hluav taws xob yog qhov cuam tshuam thiab kev hloov pauv ntawm cov kab sib txuas, xws li cov hluav taws xob arc furnaces, loj dov mills, hluav taws xob locomotives, thiab lwm yam. Lawv tsis tsuas yog tsim kom muaj ntau qhov siab - txiav txim siab sib haum xeeb thaum lub sijhawm ua haujlwm, tab sis kuj ua rau muaj kev hloov pauv hloov pauv mus rau phav phav 10, peb lub flicker 10 bale, thiab ua kom muaj kev sib haum xeeb. loj. Qhov no tsis tsuas yog txo qhov kev nyab xeeb ntawm cov khoom siv hluav taws xob nws tus kheej, tab sis kuj tseem ua rau tsis muaj zog thiab cuam tshuam rau kev lag luam ntawm daim phiaj hluav taws xob, ua rau "kev phom sij rau pej xeem" rau hauv daim phiaj hluav taws xob. Kev tswj hwm ntawm lub hwj chim zoo yuav tsum ua raws li lub hauv paus ntsiab lus ntawm leej twg ua qias neeg yuav tsum muaj lub luag haujlwm rau kev tswj hwm, ntau- theem kev tswj hwm, thiab kev sib koom ua ke hierarchical. Hauv kev faib khoom thiab kev hloov pauv ntawm thaj av, nws yog ib qho tseem ceeb tshwj xeeb los xaiv lub ntsiab ntawm cov khoom siv hluav taws xob tsis zoo thiab cov chaw thauj khoom uas nkag siab zoo rau lub zog kom tsim tau lub zog tswj cov ntsiab lus, ua qhov kev soj ntsuam xyuas hluav taws xob hauv online ntawm cov ntsiab lus no, thiab siv cov kev ntsuas coj los txhim kho lub zog zoo.