Reactive Power Compensation thiab Harmonic Control Equipment rau Kev Lag Luam Metallurgical

Reactive Power Compensation thiab Harmonic Control Equipment rau Kev Lag Luam Metallurgical

Raws li tus ncej tseem ceeb ntawm kev lag luam, kev lag luam metallurgical ua lub luag haujlwm tseem ceeb ntawm cov hlau smelting thiab ua. Nrog rau qhov kev thov ntau ntxiv rau cov hlau hauv kev lag luam niaj hnub no, cov tuam txhab metallurgical tau txuas ntxiv nthuav lawv cov nplai, thiab lub zog thiab automation qib ntawm cov cuab yeej tsim khoom kuj tau txhim kho tas li. Txawm li cas los xij, cov teeb meem tseem ceeb ntawm lub hwj chim zoo tau ua raws li - reactive fais fab poob thiab kev sib haum xeeb muaj kuab paug tau dhau los ua "kev cuam tshuam tsis pom" txwv qhov ua tau zoo, nyab xeeb thiab lub zog- txuag kev tsim khoom lag luam metallurgical. Yog li ntawd, kev siv cov kev siv hluav taws xob muaj txiaj ntsig zoo thiab kev tswj hwm kev sib haum xeeb tau dhau los ua txoj haujlwm tseem ceeb rau kev txhim kho zoo ntawm kev lag luam metallurgical.

I. Core Pain Points of Power Quality in the Metallurgical Industry

Sib txawv ntawm cov xwm txheej kev lag luam zoo tib yam, lub zog noj cov yam ntxwv ntawm cov tuam txhab metallurgical ua rau muaj qhov nyuaj thiab qhov hnyav ntawm lawv cov teeb meem tsis zoo, uas feem ntau cuam tshuam rau peb qhov tseem ceeb:

● Ua ntej, hnyav thiab nyuaj zog loads. Cov khoom siv tseem ceeb ntawm cov tuam txhab metallurgical feem ntau yog siab- lub zog inductive loads, muaj peev xwm loj, muaj zog load cuam tshuam, pib sai- nres thiab nres, thiab ua haujlwm tsis tu ncua. Los ntawm qhov siab -kev ua haujlwm ceev ntawm dov mills mus rau qhov siab -kub smelting ntawm hluav taws xob arc rauv, txhua qhov txuas ntau lawm tso cov kev xav tau siab heev ntawm lub zog hluav taws xob ruaj khov.

● Thib ob, feem ntau ntawm cov tsis yog -linear loads. Nrog rau qhov nrov ntawm kev siv tshuab thev naus laus zis, kev cob qhia metallurgical feem ntau siv cov khoom siv hluav taws xob hluav taws xob xws li DC motors, AC motors uas tau tsav los ntawm cov hloov pauv, hloov pauv ceev ceev tswj cov cuab yeej, transformers thiab reactors. Thaum lub sijhawm ua haujlwm, cov cuab yeej no yuav rhuav tshem qhov sinusoidal waveform ntawm daim phiaj hluav taws xob tam sim no, dhau los ua qhov tseem ceeb ntawm kev sib haum xeeb.

● Thib peb, muaj kuab paug zoo heev. Kev ua haujlwm ntawm cov cuab yeej tseem ceeb xws li dov mills thiab hluav taws xob arc rauv yuav ncaj qha ua rau muaj qhov hloov pauv ntawm qhov hluav taws xob thiab flicker hauv daim phiaj hluav taws xob, ua rau peb - theem tsis txaus, tsis muaj zog, nce kab poob thiab lwm yam teeb meem. Cov ntsiab lus sib haum xeeb ntau dhau tau tsim "kev phom sij rau pej xeem", uas tsis yog tsuas yog cuam tshuam rau kev nyab xeeb thiab ruaj khov ntawm lub zog hluav taws xob, tab sis kuj txo qis kev ua haujlwm zoo thiab kev pabcuam lub neej ntawm cov khoom siv hluav taws xob, tso zais qhov phom sij rau kev nyab xeeb ntau lawm.

● Yog li ntawd, kev daws cov teeb meem ntawm reactive zog them nyiaj thiab kev sib haum xeeb tswj hauv metallurgical fais fab kev faib tshuab tsis yog tsuas yog tus yuam sij rau kev ua kom lub zog zoo thiab kev nyab xeeb ntawm lub zog hluav taws xob, tab sis kuj yog ib qho kev ntsuas tseem ceeb los txo kev siv hluav taws xob, txhim kho kev tsim khoom thiab txo kev pheej hmoo ntawm kev lag luam.

II. Cov Khoom Siv Hluav Taws Xob Hauv Kev Lag Luam Metallurgical: Qhov Chaw Tseem Ceeb ntawm Harmonics thiab Reactive Power

Load yam ntxwv txawv heev nyob rau hauv sib txawv kev sib txuas ntawm metallurgical ntau lawm, thiab lub hwj chim zoo teeb meem tshwm sim los ntawm lawv muaj lawv tus kheej tsom. Ntawm lawv, peb feem ntau cov neeg sawv cev loads yog lub ntsiab contributors rau harmonics thiab reactive zog:

Hom Load	Cov yam ntxwv tseem ceeb	Harmonic tiam	Reactive zog hloov pauv	Kev cuam tshuam ntawm Fais fab Grid
Electric Arc Rauv	Tsis yog -linear & transient arc kuj; asymmetric peb-theem arc	Loj npaum li cas ntawm siab - txiav txim siab sib haum xeeb (txog 30% ntawm qhov tseem ceeb nthwv dej)	Kev hloov pauv hnyav	Qhov hnyav tshaj plaws (voltage flicker, peb-theem imbalance, tsis zoo- ntu ntu tam sim no)
Refining Rauv	Kev ua haujlwm ruaj khov; tsis muaj lub sijhawm melting	Tej yam harmonics (tsawg dua hluav taws xob arc rauv)	txheeb ze ruaj khov	Nruab nrab (muaj feem cuam tshuam rau lub hwj chim zoo thiab khoom siv lub neej)
Intermediate Frequency Rauv	High efficiency; me me load fluctuation; rectification & inversion txheej txheem	Ib tug loj tus naj npawb ntawm harmonics (tsim los ntawm rectification & inversion)	Kev hloov pauv tsawg; siab zog factor	Nruab nrab (ua paug rau daim phiaj hluav taws xob, cuam tshuam cov khoom siv nyob ib puag ncig)

 

1. Hluav taws xob Arc rauv: Raws li cov cuab yeej tseem ceeb rau metallurgical smelting, nws kuj yog lub hauv paus tseem ceeb ntawm lub zog muaj kuab paug. Qhov tsis yog-linearity thiab hloov pauv hloov pauv ntawm arc tsis kam ua kom muaj ntau qhov siab - txiav txim siab sib haum xeeb. Lub caij no, lub asymmetric peb-theem arc thaum lub sijhawm ua haujlwm ntawm AC hluav taws xob arc rauv yuav ua rau tsis zoo- ntu ntu tam sim no, ua rau peb- theem tsis txaus ntawm daim phiaj hluav taws xob thiab pom tseeb qhov hluav taws xob flicker, uas muaj qhov cuam tshuam loj tshaj plaws ntawm daim phiaj hluav taws xob. Raws li cov ntaub ntawv siv tau, cov ntsiab lus sib haum xeeb thaum lub sij hawm hluav taws xob arc rauv ua haujlwm tuaj yeem ncav cuag ntau dua 30% ntawm cov nthwv dej hauv paus, cuam tshuam nrog kev ua haujlwm zoo ntawm daim phiaj hluav taws xob.

2. Refining Rauv: Piv nrog rau cov hluav taws xob arc rauv, kev ua hauj lwm ntawm refining furnaces yog ruaj khov dua yam tsis muaj lub sij hawm melting, thiab cov kev hloov nyob rau hauv active thiab reactive hwj chim yog kuj ruaj khov. Txawm hais tias nws qhov kev cuam tshuam ntawm daim phiaj hluav taws xob tsawg dua li ntawm cov hluav taws xob arc rauv, nws tseem ua rau qee yam kev sib haum xeeb thiab rov ua lub zog poob. Hauv kev ua haujlwm ntev -, nws tseem yuav cuam tshuam rau cov khoom siv hluav taws xob zoo thiab khoom siv lub neej, uas tsis tuaj yeem tsis quav ntsej.

3. Lub tshuab hluav taws xob nruab nrab: Lub siab -kev ua tau zoo thiab lub zog- txuag cov khoom siv smelting uas hloov 50Hz lub zog- zaus AC rau hauv nruab nrab zaus fais fab (tshaj 300Hz) los ntawm kev hloov kho thiab hloov pauv. Nws nta me me load fluctuation, high efficiency, tsawg reactive zog fluctuation thiab siab zog yam. Txawm li cas los xij, cov kev hloov kho thiab kev sib txuas sib txuas ua kom muaj ntau qhov sib haum xeeb. Yog tias tsis tswj tau raws sijhawm, nws yuav ua rau lub zog hluav taws xob ib puag ncig thiab cuam tshuam rau kev ua haujlwm ntawm cov khoom siv ib puag ncig. Piv txwv li, qhov nruab nrab zaus rauv ntawm lub tshuab ua haujlwm ib zaug ua rau txo qis ntawm cov khoom siv hluav taws xob thiab cov nqi siv hluav taws xob ntau ntxiv vim muaj kev sib haum xeeb ntau dhau.

III. Kev phom sij ntawm Harmonics thiab Reactive Power hauv Metallurgical Fais Fab Systems

Rau siab -zog-siv thiab lub zog- nyob ntawm kev lag luam xws li metallurgy, cov teeb meem tshwm sim los ntawm kev sib haum xeeb thiab lub zog reactive yog qhov systematic, cuam tshuam tsis yog cov cuab yeej siv thiab cov phiaj hluav taws xob nkaus xwb, tab sis kuj cuam tshuam ncaj qha rau kev tsim khoom thiab kev nyab xeeb ntawm cov lag luam:

 

● Los ntawm qhov kev xav ntawm daim phiaj hluav taws xob, cov hluav taws xob reactive poob txo cov hluav taws xob xa hluav taws xob, ua rau cov kab thiab cov hluav taws xob poob qis, thiab ua rau lub zog hluav taws xob tsis ruaj khov. Cov kev sib raug zoo ntau dhau ua rau lub zog hluav taws xob tsis zoo, ua rau peb -theem tsis sib xws, thiab txawm tias rov ua haujlwm nrog lub tsev txhab nyiaj capacitor, ua rau muaj kev nyab xeeb xws li kev tawg ntawm lub capacitor. Piv txwv li, ib lub tuam txhab steel ib zaug raug kev txom nyem los ntawm cov kab nruab nrab kub hnyiab vim qhov superposition ntawm 3rd harmonic ntawm txoj kab nruab nrab, ua rau tag nrho cov nroj tsuag hluav taws xob tawm thiab kev lag luam ncaj qha poob ntau dua 10 lab yuan.

● Los ntawm kev pom cov khoom siv, kev sib haum xeeb ua kom lub rwb thaiv tsev laus ntawm cov khoom siv hluav taws xob, txo lub neej kev pab cuam ntawm cov khoom siv tseem ceeb xws li transformers thiab motors, thiab nce cov khoom siv tsis ua hauj lwm thiab cov nqi tu. Lub transformer core generates ntxiv poob vim harmonic eddy tam sim no, nrog ib tug kub nce ntawm 1.5 npaug ntawm tus nqi ib txwm; tooj liab poob ntawm lub cev muaj zog stator windings nce vim cov nyhuv ntawm daim tawv nqaij, txo efficiency ntawm 5% -10%. Lub caij no, kev sib haum xeeb cuam tshuam nrog PLC tswj cov tshuab, ua rau cov ntaub ntawv ntau lawm dhia, cuam tshuam cov khoom lag luam zoo thiab nce kev tsis lees paub.

● Los ntawm kev xav txog tus nqi lag luam, qhov tsis muaj hluav taws xob tsawg yuav ua rau muaj kev hloov pauv hluav taws xob raug nplua los ntawm lub tuam txhab hluav taws xob, thiab kev sib haum xeeb yuav ua rau muaj kev siv hluav taws xob ntau ntxiv thiab txo qis kev tsim khoom, ua rau kev lag luam poob nyiaj ntau rau cov lag luam ntev. Yog li ntawd, kev tswj hwm kev sib haum xeeb thiab kev siv hluav taws xob tsis yog tsuas yog kev thov rau kev txo nqi thiab kev txhim kho kev ua haujlwm, tab sis kuj yog cov kab hauv qab rau kev nyab xeeb ntawm kev lag luam metallurgical.

IV. Targeted Solutions: Optimal Power Quality Control rau Metallurgical Kev Lag Luam

Lub hom phiaj ntawm lub zog zoo qhov mob ntawm kev lag luam metallurgical thiab ua ke nrog cov yam ntxwv ntawm kev thauj khoom raug, kev lag luam kev coj ua tau ua pov thawj tias kev sib koom ua ke ntawm Static Var Generator (SVG) thiab Active Power Filter (APF) yog cov kev daws teeb meem zoo tshaj plaws thiab ruaj khov, uas tuaj yeem ua tiav ob lub hom phiaj ntawm "reactive zog them + kev sib haum xeeb filtering" thiab tag nrho daws cov teeb meem hluav taws xob zoo.

 

Cov cuab yeej tswj	Core Function	Teb ceev	Qhov tseem ceeb Advantage	Daim ntawv thov nyhuv
SVG	Dynamic reactive zog them nyiaj	Tsawg dua los yog sib npaug li 5ms	Tsis pub dhau -cov nyiaj them poob haujlwm / hauv qab- cov nyiaj them poob haujlwm; stabilize daim phiaj voltage	Fais fab tuag ntau dua lossis sib npaug rau 0.95; voltage flicker tswj tau zoo
APF	Dynamic harmonic filtering	Tsawg dua los yog sib npaug li 10ms	Kev lim dej meej (2nd-50th harmonics); tsis muaj resonance	Tam sim no distortion tus nqi Tsawg dua los yog sib npaug rau 3.45%; ua tau raws li lub teb chaws tus qauv

 

1. Static Var Generator (SVG): Dynamically Compensate Reactive Power thiab Stabilize Grid Voltage

Cov txheej txheem kev siv hluav taws xob siv hluav taws xob ib txwm muaj (xws li thyristor hloov cov capacitors, thyristor tswj reactors, thiab lwm yam) muaj teeb meem ntawm cov lus teb qeeb thiab yooj yim dua - cov nyiaj them los yog qis dua - cov nyiaj them poob haujlwm, tsis ua raws li cov yam ntxwv ntawm kev cuam tshuam loj thiab ceev reactive zog hloov pauv ntawm cov khoom siv hlau. Hauv qhov sib piv, SVG tau dhau los ua cov khoom siv zoo tshaj plaws rau cov khoom siv hluav taws xob reactive hauv kev lag luam metallurgical los ntawm kev tsim txiaj ntawm nws qhov tiag - lub sij hawm dynamic them nyiaj kom zoo dua.

SVG tuaj yeem ntes cov hluav taws xob tam sim no hauv daim phiaj hluav taws xob hauv lub sijhawm tiag tiag thiab tawm sai sai cov nyiaj them tam sim no nrog qhov sib npaug ntawm qhov sib npaug thiab cov theem rov qab rau cov khoom siv rov ua haujlwm, ua kom muaj kev hloov pauv tsis tu ncua reactive fais fab nyiaj them, tag nrho tshem tawm tshaj - nyiaj them poob haujlwm thiab hauv qab - nyiaj them, zoo stabilizing fais fab tuag voltage thiab suppressing voltage flicker. Piv txwv li, nyob rau hauv ib tug dov zeb renovation project ntawm ib tug stainless hlau tuam txhab, hloov cov tsoos MCR them nyiaj pab kiag li lawm nrog SVG nce cov lus teb ceev los ntawm ntau tshaj 200ms mus rau hauv 5ms, tsa lub hwj chim ntawm 0.85 mus tshaj 0.95, zoo tswj voltage flicker, thiab tag nrho cov teeb meem xws li lub teeb flickering thiab uneven rolling mill output. Tsis tas li ntawd, siab - cov khoom SVG zoo tuaj yeem them nyiaj rau qhov system fais fab mus rau ntau dua 0.98, tso tawm lub peev xwm ntawm transformers thiab cables, thiab tsis ncaj qha txuag peev peev uas yuav tsum tau muaj rau kev lag luam muaj peev xwm nthuav dav.

2. Active Power Filter (APF): Dynamically Filter Harmonics thiab Purify Power Grid Ib puag ncig

Cov khoom siv xws li kev hloov pauv zaus, rectifiers thiab nruab nrab zaus furnaces hauv kev lag luam metallurgical yog cov khoom sib haum xeeb. Ib txwm siv LC cov ntxaij lim dej tsis tuaj yeem ua tiav qhov kev lim dej zoo thiab ua rau muaj kev cuam tshuam nrog cov kab hluav taws xob. Raws li "harmonic killer", APF tuaj yeem tsom cov teeb meem kev sib haum xeeb hauv kev lag luam metallurgical.

Nws txoj haujlwm ua haujlwm yog txuas APF ua ke nrog kev sib haum xeeb- tsim cov khoom thauj. Los ntawm kev txheeb xyuas cov kev sib haum xeeb tam sim no tsim los ntawm cov khoom thauj hauv lub sijhawm tiag tiag, nws tswj nws tus kheej kom tso tawm cov nyiaj them tam sim no nrog qhov sib npaug ntawm qhov sib npaug thiab cov theem rov qab mus rau qhov kev sib haum xeeb tam sim no, yog li offsetting qhov cuam tshuam ntawm kev sib haum xeeb ntawm lub network faib thiab paub meej cov lim dej ntawm 2nd mus rau 50th harmonics. Tom qab siv APF nyob rau hauv ib lub smelter, tag nrho cov harmonic tam sim no distortion tus nqi ntawm qhov tsawg -voltage sab ntawm lub transformer tis raug txo heev, thiab lub ntsiab harmonic cov ntsiab lus xws li 5th thiab 7th harmonics hloov los ntawm ntau tshaj tus qauv mus rau lub teb chaws tus qauv. Lwm cov ntaub ntawv qhia tau hais tias tom qab APF tau muab tso rau hauv kev ua haujlwm, qhov system tam sim no distortion tus nqi tuaj yeem raug txo los ntawm 25.56% mus rau qis dua 3.45%, ua tiav kev txhim kho cov phiaj xwm hluav taws xob.

Nws yog ib qho tsim nyog sau cia tias rau qhov chaw tsim khoom hnyav hauv kev lag luam metallurgical xws li hlau plua plav thiab kua qaub, SVG thiab APF cov cuab yeej nrog qib kev tiv thaiv siab muaj qhov zoo dua, ua kom ntev - lub sijhawm ua haujlwm ruaj khov nyob rau hauv ib puag ncig nyuaj thiab ua kom muaj kev ruaj ntseg ntawm kev tswj cov teebmeem.

Kev Tswj Xyuas Hluav Taws Xob Ua kom muaj zog ntsuab thiab muaj txiaj ntsig zoo ntawm kev lag luam metallurgical

Lub siab -kev txhim kho zoo ntawm kev lag luam metallurgical tsis tuaj yeem sib cais los ntawm kev ruaj khov, muaj txiaj ntsig zoo thiab kev txhawb zog huv. Reactive zog them nyiaj thiab kev sib haum xeeb tswj tsis yog tsuas yog tus yuam sij rau kev daws teeb meem ntawm lub zog zoo, tab sis kuj yog ib qho tseem ceeb ntawm kev txhawb nqa rau cov tuam txhab metallurgical kom txo cov nqi, txhim kho kev ua tau zoo, ua kom muaj kev nyab xeeb thiab ua tiav kev hloov pauv ntsuab.

Nrog rau kev txhim kho txuas ntxiv ntawm lub zog hluav taws xob thev naus laus zis, kev ua haujlwm ntawm SVG thiab APF cov cuab yeej tau ua kom zoo dua qub, thiab lawv tau siv rau ntau qhov xwm txheej ntawm kev lag luam metallurgical - los ntawm kev sib haum xeeb ntawm cov hluav taws xob hluav taws xob hluav taws xob thiab cov hluav taws xob ua kom zoo rau cov hluav taws xob siv hluav taws xob ntawm cov dov mills, cov khoom siv no muab kev txhawb zog me me rau kev siv hluav taws xob tsis ua hauj lwm, txo kev siv hluav taws xob tsis zoo. thiab txhim kho cov txiaj ntsig.

Nyob rau hauv lub neej yav tom ntej, raws li kev lag luam metallurgical hloov mus rau kev txawj ntse thiab kev cog qoob loo, cov kev xav tau ntawm lub zog hluav taws xob yuav raug txhim kho ntxiv. Reactive zog them nyiaj thiab harmonic tswj technologies tseem yuav mus ntxiv innovate, txhaj tshuaj tshiab impetus mus rau lub sustainable kev loj hlob ntawm metallurgical kev lag luam thiab pab kev lag luam ua tiav cov hom phiaj kev loj hlob ntawm "zog txuag, efficiency thiab kev nyab xeeb".

Hu rau tam sim no