Tus nqi tsom xam ntawm lub zog kho vaj tse kho tau cov khoom siv (PFC li)
Lub Zog Hluav Taws Xob Kev Kho Mob Ua Si Lub Luag Haujlwm Tseem Ceeb hauv ntau lub teb hauv ntau lub teb xws li kev lag luam, kev lag luam, thiab txuas ntxiv dua. Lawv tus nqi nyob rau hauv kev xa cov nyiaj txiag kev lag luam, tiv thaiv cov khoom siv, stivilizing fais fab ci, thiab ua kom ua raws li kev tswj hwm. Cov hauv qab no yog cov ncauj lus kom ntxaws:
I. Cov nqi tseem ceeb thiab muaj nuj nqi
1. Cov nqi hluav taws xob tsawg dua
Zam kev ua kom muaj kev nplua lub zog: Cov tuam txhab hluav taws xob feem ntau tau xaiv cov kev nplua rau cov neeg siv nrog lub zog tsis tshua muaj zog (piv txwv li, hauv qab 0.9). Txhim kho PFC cov khoom siv tuaj yeem tsa lub zog siv hluav taws xob mus rau 0.95 lossis siab dua, ua tau zoo zam cov nqi ntxiv.
Piv txwv li: Tom qab teeb tsa PFC li qub, lub tuam txhab tsim khoom lag luam tau zoo dua nws lub zog ntawm 0.75 rau 0.98, ua rau muaj 15% txo hauv cov nqi hluav taws xob.
2. Txo kab poob
Txo cov thermal poob: Ib qho tsis tshua muaj hwj chim nce ntxiv tam sim no ntws tawm tam sim no, uas ua rau ntau dua thermal poob hauv kis cov kab (I²R poob). PFC li txo cov khoom siv tam sim no, txo qis zuj zus no.
Cov ntaub ntawv siv: Tsa lub hwj chim muaj zog los ntawm 0.7 mus rau 0.95 tuaj yeem txo cov kab poob los ntawm kwv yees li 40%.
3. Kev ntxiv cov khoom siv ua neej
Txo qhov system ntxhov siab: Tsis tshua muaj hwj huam ntau zaus ua rau voltage hloov thiab Harmonics, uas ceev faj kev laus. PFC li kev pab tswj cov neeg hluav taws xob thiab kev ua kom zoo nkauj, yog li lub neej muaj sia ntawm cov khoom tseem ceeb xws li transformers thiab motors.
Txoj kev: Nws zoo li "lightening lub load" ntawm lub hwj chim sib tw, kom ua haujlwm smoother thiab txhim khu kev qha ntau dua.
4. Txhim Kho Lub Hwj Chim Muaj Peev Xwm
Tso Tawm Qhov System Muaj Peev Xwm: Raws li tib yam pom meej lub hwj chim, lub zog siab dua tso cai rau kev xa khoom ntau lub zog. Piv txwv li, lub transformer 100kva tuaj yeem xa tsuas yog 70kW ntawm lub peev txheej ntawm 0.7, tab sis txog 95KW ntawm 0.95.
Siv cov ntaub ntawv: Qhov no yog tau txais txiaj ntsig tshwj xeeb hauv high -}}} Thov cov chaw thiab chaw ua si.
5. Lub rooj sib tham txoj cai thiab cov qauv yuav tsum tau ua
Kev Tswj Fwm: Ntau lub tebchaws thiab cheeb tsam teeb tsa cov khoom siv tsawg kawg nkaus rau cov neeg siv (piv txwv li ntau dua lossis sib npaug nrog 0.9 hauv Suav teb GB / T 14549 thiab EU qauv en 61000-3-2). Cov khoom siv pfc yog qhov tseem ceeb rau kev ua kom tau raws li cov kev xav tau no.
Zam kev nplua: Tsis {- Ua raws cai yuav ua rau raug nplua lossis muaj hluav taws xob txwv.
Ii. Daim Ntawv Thov Kev Ntsuam Xyuas thiab Xav Tau Kev Tshawb Fawb
| Daim Ntawv Thov Kev Thov | PFC ntaus ntawv yuav tsum tau ua | Kev piav txog |
|---|---|---|
| Muaj Tsav Tsheb Txom Nyem | ✅ Yog | Cov Motors yog cov khoom siv hluav taws xob raug thauj nrog cov hluav taws xob tsawg (0.6-0.8), xav tau PFC txhawm rau txhim kho kev ua haujlwm. |
| Cov Chaw Teev Khoom | ✅ Yog | Server Power cov khoom siv xav tau siab (ntau dua los yog sib npaug rau 0.99) los txo kev ua phem thiab raws li qib 3/4 cov qauv. |
| Lub tsev lag luam | ✅ Yog | Thauj khoom zoo li cov cua txias, nce qib, thiab teeb pom kev zoo txo kom tag nrho cov PF; PFC txhim kho kev txuag hluav taws xob. |
| Khoom Siv Hauv Tsev | Feem ntau tsis muaj | Ib qho khoom siv tau muaj tsawg - Fais; Txawm li cas los xij, cov kev thauj khoom sib xyaw yuav cuam tshuam lub zog zoo. Qee qhov siab -} Cov khoom siv kawg twb muab tso ua ke sib xyaw ua ke. |
| Hnub No Tseem Ceeb Systems | ✅ Yog | Cov cuab yeej zoo li PV inverers yuav tsum tau sib xyaw - tus phooj ywg; PFC txo kev sib haum xeeb thiab txhim kho kev sib txuas lus sib txuas. |
III. Hom thev naus laus zis thiab xaiv cov lus pom zoo
1. Passive PFC li
Phiaj Kev Thov: Tsawg {-} Fais Fab Khoom Siv (<1kW), cost-sensitive scenarios.
Qhov Zoo: Kev tsim qauv yooj yim, tus nqi qis.
Tsis zoo: Tsawg txoj kev kho (feem ntau rau pf<0.8), larger size.
Piv txwv: LC lim voj voog hauv cov teeb pwm fluorescent.
2. ACTAt PFC li
Phiaj Kev Thov: High-power equipment (>1kW), xav tau lub zog zoo.
Qhov Zoo: Tuaj yeem tsa PF kom loj dua lossis muaj sib npaug rau 0.99, compact, siab efficiency.
Tsis zoo: Tus nqi siab dua, tswj tau ntau dua.
Piv txwv: Boosts Pfc ncig hauv cov inverters thiab khoos phis tawj fais fab.
3. Hybrid Pfc Li
Phiaj Kev Thov: Nruab Nrab {-} cov khoom siv fais fab (1-10kw), ntsuas tus nqi thiab kev ua tau zoo.
Ua Haujlwm Cov Ntsiab Cai: Siv passive Cheebtsam rau kev kho ua ntej thiab cov kev ua haujlwm hauv kev kho kom haum.
Qhov Zoo: Tus nqi nruab nrab, lub hwj chim muaj zog feem ntau txhim kho rau ntau dua lossis sib npaug rau 0.95.
Lus pom zoo:
Siab -} kev siv fais fab: Ua ntej tshaj tawm cov khoom siv PFC rau kev ua tau zoo dua qub thiab kev ua tau zoo.
Tsawg rau nruab nrab lub zog lossis tus nqi - rhiab scenarios: Xav txog passive lossis hybrid Pfc daws teeb meem zoo dua tus nqi - ua tau zoo.
Cheeb tsam nrog cov kev tswj nruj: Xaiv cov khoom siv PFC uas ua tau raws li cov qauv hauv zos kom tsis txhob raug nplua lossis kev txwv.