Lub ntsiab transformer ntawm dov zeb fais fab faib tshuab yog lub rectifier transformer nrog ib tug voltage ntawm 0.4/0.66/0.75 kV, thiab lub ntsiab load yog DC lub ntsiab lub cev muaj zog.Vim tias lub zog xa hluav taws xob thiab kev faib tawm ntawm tus neeg siv lub tshuab extruder rectifier feem ntau siv ob hom rau-mem tes rectifier thev naus laus zis, uas ua rau muaj qee yam ntawm cov mem tes tam sim no (6N + 1) nyob rau qib sib txawv ntawm sab qis, thiab feem ntau (6N. +1) nyob rau sab high-voltage.12N + 1) Tso saib kaum ob ib leeg-pulse rectifier hom.
Kev puas tsuaj ntawm hluav taws xob engineering harmonics rau daim phiaj hluav taws xob yog nyob ntawm qhov kev puas tsuaj ntawm kev sib haum xeeb ua haujlwm voltage rau cov tshuab thiab cov khoom siv hauv daim phiaj hluav taws xob, uas yog, qhov kev sib haum xeeb ua haujlwm voltage tshaj li cov tshuab thiab cov cuab yeej siv tau.Lub hwj chim mov tog yog lub luag hauj lwm rau lub pulse tam sim no ua hauj lwm voltage ntawm lub hwj chim mov network, thiab cov neeg siv hluav taws xob yog lub luag hauj lwm los qhia cov harmonic tam sim no ntawm lub system software.
Raws li kev paub txog engineering ntawm peb lub tuam txhab cov tsoos rolling mills los cuam tshuam nrog kev sib haum xeeb, hauv kev ua haujlwm, hauv cov neeg siv hluav taws xob qis hluav taws xob, 5th harmonic tam sim no cov ntsiab lus nce mus txog 20% ~ 25%, 7th harmonic tam sim no nce mus txog 8%, thiab cov kev sib haum xeeb tam sim no raug txhaj rau hauv qhov hluav taws xob siab Cov ntsiab lus sib haum xeeb hauv lub zog hluav taws xob nce nrawm, uas ua rau lub zog hloov pauv ntawm cov khoom siv hluav taws xob, ua rau cov khoom siv hluav taws xob poob qis, ua rau cov khoom siv hluav taws xob ntxiv, cuam tshuam rau kev ua haujlwm ntawm lwm tus. cov cuab yeej siv hluav taws xob hauv daim phiaj hluav taws xob, thiab txo cov hluav taws xob zoo ntawm daim phiaj hluav taws xob., uas cuam tshuam rau kev ruaj ntseg hluav taws xob ntawm daim phiaj hluav taws xob thiab ua rau muaj kev nyab xeeb rau kev nyab xeeb ntawm cov khoom siv.
Txhawm rau kom ntseeg tau tias kev ua haujlwm ib txwm muaj ntawm cov cuab yeej siv, txhim khu kev qha fais fab thiab txuag hluav taws xob ntawm cov khoom siv hluav taws xob, nws yog ib qho tsim nyog yuav tsum tau siv cov kev ntsuas los txo cov kev sib raug zoo tam sim no ntawm cov cuab yeej thiab xav txog cov nyiaj them ntawm lub hauv paus reactive zog.Raws li cov qauv zoo ntawm cov khoom siv hluav taws xob ua haujlwm nyob rau hauv kuv lub teb chaws daim phiaj hluav taws xob thiab cov kev tshawb fawb tshawb fawb ntawm cov mem tes tam sim no tswj nyob rau hauv ntau lub teb chaws hauv ntiaj teb, cov kev qhia tshwj xeeb ntawm cov khoom siv hluav taws xob hauv qab hluav taws xob thiab cov nyiaj siv hluav taws xob tau txais yuav, thiab cov lim tswj lub voj voog raws li. teem rau cov yam ntxwv mem tes tam sim no tshwm sim los ntawm lub rectifier kom zom thiab nqus cov dej sib haum xeeb.Tsis tas li ntawd, nws muaj lub luag haujlwm ntawm kev them nyiaj rau lub hauv paus yoj reactive load thiab txuag hluav taws xob electromagnetic.
Cov khoom siv los tiv thaiv kev sib raug zoo tsim los ntawm Zhejiang Hongyan Electric Co., Ltd.Thaum txhim kho lub zog zoo, lub zog zoo thiab txuag hluav taws xob ntawm daim phiaj hluav taws xob, nws tseem tuaj yeem txhim kho kev ntseeg tau ntawm kev ua haujlwm tag nrho ntawm lub zog hluav taws xob thiab kev ua haujlwm ntawm cov khoom siv, thiab txo cov nqi khiav lag luam thiab txo cov nqi tu cov khoom, cov khoom siv ntev. lub neej, thiab nqa cov txiaj ntsig kev lag luam pom tseeb rau cov neeg siv.
DC dov mills feem ntau siv DC lub cev muaj zog, thiab lub zog muaj zog thaum dov qis heev, feem ntau nyob ib ncig ntawm 0.7.Ib qho ntawm nws cov yam ntxwv tseem ceeb yog lub voj voog ua haujlwm luv luv, nrawm nrawm, cuam tshuam kev thauj khoom, thiab kev hloov pauv loj tsis raug.Lub tshuab fais fab tseem tuaj yeem ua rau muaj kev hloov pauv ntawm cov hluav taws xob hluav taws xob, ua rau lub teeb thiab TV cov ntxaij vab tshaus flicker, ua rau pom kev qaug zog thiab khaus khaus.Tsis tas li ntawd, lawv kuj tseem yuav cuam tshuam rau kev ua haujlwm zoo ntawm thyristor Cheebtsam, cov cuab yeej lossis cov cuab yeej tsim khoom, thiab txawm tias ua rau muaj kev nyab xeeb.General capacitor nyiaj them nyiaj hauv tuam txhab tsis tuaj yeem taug qab cov kev hloov pauv hauv lub sijhawm tiag tiag kom tswj tau cov nyiaj them tsim nyog.Cov cuab yeej siv cuab yeej sib cuag tau cuam tshuam vim kev hloov pauv tsis tu ncua, uas muaj kev cuam tshuam zoo rau daim phiaj hluav taws xob.
DC dov zeb txais kev xa hluav taws xob ntawm thyristor rectification technology.Raws li tus naj npawb ntawm rectification pulses, nws tuaj yeem muab faib ua 6-pulse rectification, 12-pulse rau 24-miv.Ntxiv nrog rau qhov tsis muaj hluav taws xob tsawg, kev txiav txim siab siab yuav raug tsim tawm thaum ua haujlwm.Feem ntau, domestic DC dov mills Lub 6-pulse rectification technology yog siv, yog li cov kev txiav txim siab harmonics generated los ntawm ib qho qis-voltage winding sab ntawm lub rectifier transformer feem ntau yog 11 thiab 13 nyob rau hauv qis-voltage sab ntawm lub transformer nrog 2. windings ua thiab yn kev sib koom ua ke, 5th thiab 7th High-order harmonics tuaj yeem raug offset ntawm high-voltage sab, yog li 11th thiab 13th high-order harmonic Cheebtsam yog tsuas yog tso tawm nyob rau hauv high-voltage sab.Cov kev cuam tshuam tseem ceeb ntawm kev txiav txim siab siab tam sim no ntawm daim phiaj hluav taws xob muaj xws li cua sov thiab kev co ntawm cov khoom siv hluav taws xob, kev poob siab, kev ua haujlwm luv luv, kev sib txuas lus cuam tshuam, thyristor kev ua haujlwm yuam kev, kev ua haujlwm yuam kev ntawm qee cov khoom siv tiv thaiv relay, kev laus thiab kev puas tsuaj ntawm hluav taws xob rwb thaiv tsev txheej. , lwm.
Cov kev daws teeb meem xaiv los ntawm:
Kev daws 1 Centralized tswj (muaj feem xyuam rau lub hwj chim qis, sab laug thiab sab xis ntim)
1. Txais kev sib haum xeeb tswj ceg (3, 5, 7 lim) + reactive zog tswj ceg.Tom qab cov cuab yeej lim dej tau muab tso rau hauv kev ua haujlwm, kev tswj hwm kev sib haum xeeb thiab kev siv hluav taws xob rov ua haujlwm ntawm cov khoom siv hluav taws xob ua tau raws li qhov yuav tsum tau ua.
2. Siv lub voj voog bypass uas txwv tsis pub muaj kev sib raug zoo ntawm kev sib raug zoo, thiab tom qab txuas cov khoom siv lim dej, ua kom lub zog ua tau raws li qhov yuav tsum tau ua.
Option 2 Kev kho mob hauv zos (tseem siv tau rau 12-pulse rectifier transformer low-voltage side treatment thiab high-power main engine and winding machine)
1. Txais kev tiv thaiv kev sib raug zoo bypass (5th, 7th, 11th kev txiav txim lim), tsis siv neeg taug qab thaum lub tshuab dov khiav, daws kev sib haum xeeb ntawm qhov chaw, tsis txhob cuam tshuam rau kev ua haujlwm ntawm lwm yam khoom siv thaum lub sijhawm tsim khoom, thiab kev sib haum xeeb tsis ncav cuag tus qauv. tom qab muab tso rau hauv kev ua haujlwm.
2. Siv cov lim dej active (filtering dynamic harmonics) thiab lim bypass (5th, 7th, 11th order filtering), cov harmonics tom qab switching yog tsis raws li tus qauv.
Lub sij hawm xa tuaj: Plaub Hlis-13-2023