Cov Hluav Taws Xob Arc Rauv Hluav Taws Xob Hluav Taws Xob-Tshwj Xeeb LawvLub zog tsim (pf)-Ded lub luag haujlwm tseem ceeb hauv kev ua haujlwm ua haujlwm thiab lub zog siv hluav taws xob.
Yog tias koj koom nrog kev tsim tawm steel lossis kev nkag siab lub zog EAF tuaj yeem pab ua kom muaj txiaj ntsig zoo, txo cov nqi hluav taws xob, thiab tsis txhob raug nplua los ntawm cov khoom siv hluav taws xob {}}
Yog li,Dab tsi yog qhov muaj zog ntawm lub zog ntawm lub tshuab hluav taws xob ua kom sov, thiab vim li cas nws tseem ceeb?Cia peb rhuav nws .
Lub zog yog dab tsi?
Lub zog hluav taws xob (PF) kev ntsuas hluav taws xob tau hloov pauv tau zoo li cas rau hauv kev ua haujlwm muaj txiaj ntsig {}} nws tau qhia raws li tus nqi ntawm0 thiab 1(los yog {0% mus rau 100%), qhov twg:
1.0 (100%)= Zoo Tshaj Plaws (txhua lub zog siv tau) .
Hauv qab 0.9 (90%)=} Tsis muaj txiaj ntsig (qee lub zog yog khib nyiab raws li kev siv fais fab) .
Cov hom muaj hwj chim hauv EAF:
Lub zog tiag tiag (KW) - lub zog tiag tiag siv los yaj hlau .
Rease Fais Fab (KVAR) - Qhov "Tsis Muaj Zog" Lub Zog Uas Yuav Tsum Tau Los Txhawb Zog Electromagnetic Hauv Inductive Thauj Khoom (zoo li Transformers thiab Arcs).
Lub Zog Hluav Taws Xob (KVA) - tag nrho cov fais fab kev sib tw los ntawm daim phiaj (sib xyaw ntawm cov kev sib xyaw ua ke thiab reactive ntawm lub zog tiag tiag).
Cov mis yog:
Lub Zog Hluav Taws Xob (PF)=Lub Zog (KW) Lub Zog Loj (KVA)
Raug muaj peev xwm siv hluav taws xob ntawm ib lub hluav taws xob ua hluav taws xob
EAF yogSiab inductive loads, lub ntsiab lus lawv muaj aTsawg zog siv hluav taws xob-tawv ntawm0.7 thiab 0.85(70% rau 85%) .
Vim li cas thiaj yog PF thiaj tsawg?
- ARC Qhov Tsis Txaus - Cov Hluav Taws Xob Cov Hluav Taws Xob Ib qho kev hloov pauv, ua rau hloov kho tam sim no thiab voltage .
- Inductive Xwm - lub cub hluav taws xob hloov, cov cable, thiab hluav taws xob ua si reaseces .
- Nonlinear - arcing tsim kev sib raug zoo, ntxiv dag zog ua kom zoo .
Kev sib piv nrog lwm cov khoom siv thauj khoom:
| Cuab tam | Raug Power Factor |
|---|---|
| Fais arc rauv (EAF) | 0.7 – 0.85 |
| Induction Rauv | 0.75 – 0.85 |
| Cov Motors Loj | 0.85 – 0.95 |
| Ua Haujlwm Tso Cua Sov | 1.0 |
Vim li cas cov neeg muaj peev xwm hauv EAF kev ua haujlwm?
Lub zog tsis tshua muaj ua rau muaj ntau cov teeb meem:
{. cov nqi hluav taws xob siab dua
Cov nqi hluav taws xob feem ntaunpluasKev lag luam nrog pf hauv qab0.9(qee tus txawm hauv qab no0.95).
Yog koj EAF khiav ntawm0.75 PF, koj yuav tau them10-20% ntau duanyob rau hauv kev thov them .
B .} overloaded transformers & cables
Tsawg PF nce ntxivpom meej tam sim no, yuam kev hloov pauv thiab cov cables ua haujlwm nyuaj .
Qhov no tuaj yeem ua rauEnglish Equiped Tsis Yogthiabdowntime.
C . voltage poob & flicker
Kev ua yuam kev arc tus cwj pwm ua rauhloov pauv hloov pauv, cuam tshuam cov khoom nyob ze .
Qhov no "flicker" tuaj yeem cuam tshuam lwm lub tshuab hauv cov nroj tsuag .
Yuav ua li cas txhawm rau txhim kho lub zog hluav taws xob ntawm EAF
Ua tsaug, ntau txoj kev daws teeb meem yuav txhawb nqa PF thiab efficiency:
Ib . zoo li cov neeg muaj cov txhab nyiaj (svcps)
Cov khoom siv noTxha tawm refore zogYuav kom offset inductive poob .
Tuaj yeem txhim kho PF rau0.95+, txo kev nplua .
B . Cov Ntxim Ua Haujlwm Harmonic Lim (AHFS)
Txo qhov ua kom zoo nkauj distortion los ntawm arcing, txhim kho lub zog zoo .
C . Koj nyiam cov tshuaj tiv thaiv (tcrs)
Dynamically kho kho cov hluav taws xob cuam tshuam raws cov sijhawm rauv tiag tiag .
D . high-effecticiers
Niaj hnubRectifier Transformerstxo cov kev ua kom muaj kev puas tsuaj .
E . txheej txheem txhim kho
Seem preheated(txo lub sijhawm melting, txo qis kev xav tau) .
Oxygen Txhaj(ceev ups upsts up refining, txiav cov zog khib nyiab) .
Cov piv txwv tiag tiag: Lub Zog Hluav Taws Xob Cov Cai Kho Mob Hauv Nroj Hlau Hlau
Lub tsev nyob hauv European hloov nws 80- tuj tuj nrog rau svc + Capacitor bank, ua tiav:
✅ PF txhim kho los ntawm 0.72 txog 0.96
✅ Zog cov nqi txo los ntawm 12%
✅ Transformer lifespan txuas ntxiv los ntawm 20%
Qhov no qhia tau hais tias kev tswj hwm kom tau zoo tuaj yeem ua rau muaj kev txuag nyiaj loj {}}
Yav Tom Ntej: Ntse PF Tswj nrog AI
Kev siv tshuab thev naus laus zis tau siv lub zog kho vaj tse ntxiv:
Ai-Raws Li Kev Tswj Xyuas Kev Tswj XyuasHloov kho cov nyiaj them rau hauv lub sijhawm tiag tiag .
Hybrid Systemssib txuas nrog svcs nrog roj teeb cia rau ultra-ruaj arcs .
Cov kev sib txuas ntxiv txuas ntxiv(Hnub Ci / Cua + EAFs nrog dynamic pf kho tau) .
Puas yog koj EAF lub hwj chim siv koj cov nyiaj?
Fais arc rauvLawm muaj lub zog tsis tshua muaj zog (0.7-0.85), tab sis tsis quav ntsej nws tuaj yeem ua rau:
⚠️ Cov nqi hluav taws xob ntau dua(vim kev nplua cov nqi hluav taws xob) .
⚠️ Cov Khoom Siv Kev ntxhov siab(hloov pauv, cable, hloov pauv) .
⚠️ Tsis ruaj khov hluav taws xob zoo(voltage flicker, Harmonics) .
Cov xov xwm zoo?Kev Them Nyiaj Niaj Hnub (SCCS, Capactrial, lim) tuaj yeem kho qhov no, txhim kho kev ua tau zoo thiab txiav cov nqi .
Ntawv Sawv cev
IEEE kev lag luam ntawm cov ntawv thov kev lag luam . (2021) .Lub zog zoo hauv hluav taws xob arc rauv.
U {. s} s} s}}} department of zog {2} {{4 4}}Kev Ua Zoo Tshaj Plaws rau EAF Zog Kev Ua Haujlwm.
Abb ntawv . (2020).Static var them nyiaj rau steel nroj tsuag.
Xav tau kev pab kom ua kom tau koj EAF lub zog?Hu rau peb pab neeg rauCustomized kev daws teeb meemHauv arc rauv ua tau zoo!
Xi'an Huachan Metallurgical Technology Co ., ltd .
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