Hauv kev tshuaj xyuas kev nyab xeeb ntawm lub zog hluav taws xob,series resonancethiabDC siab -voltage generatorszoo li ob tus kws tshaj lij "tus kws kho mob lub zog", txhua tus muaj cov txheej txheem kuaj mob tshwj xeeb. Nyob rau saum npoo, ib qho kev ua haujlwm AC high voltage thiab lwm qhov tsim DC high voltage zoo li tsis muaj feem cuam tshuam. Tab sis thaum koj delve tob rau hauv nws cov hauv paus ntsiab lus thiab daim ntawv thov scenarios, ib tug meej logical saw yuav tshwm sim.
01 Cov hauv paus ntsiab lus tseem ceeb, txoj kev siv thev naus laus zis sib txawv kiag li
Series resonance: lub zog resonance hauv ntiaj teb kev sib txuas lus
Thaum lub resistor (R), inductor (L), thiab capacitor (C) txuas nrog hauv series, lub cev zoo tshwm sim tshwm sim - ntawm ib zaus, qhov inductive impedance (XL) thiab capacitive impedance (XC) tshem tawm ib leeg tawm, thiab lub voj voog ua pov thawj dawb huv, mus txog lub xeev resonant.
Cov qauv tseem ceeb qhia txog nws qhov essence:
Resonant zaus f ₀=1/(2 π√ LC)
Hauv qhov no, cov yam ntxwv ntawm Circuit Court tau hloov pauv loj heev:
Tag nrho cov impedance raug txo rau nws qhov tsawg kawg nkaus tus nqi (tsuas yog tsis kam R)
Qhov hluav taws xob tam sim no ncav cuag nws qhov siab tshaj plaws (I=U/R)
Qhov hluav taws xob hla lub inductor thiab capacitor yog qhov siab tshaj qhov hluav taws xob hluav taws xob (txog li ob peb zaug mus rau kaum tawm zaus)
Lub zog yog sib pauv ncaj qha ntawm L thiab C, thiab cov khoom siv hluav taws xob tsuas yog xav tau los muab kev poob qis
DC High Voltage Generator: Daim duab ntawm DC Boosting
Tsis zoo li "ingenuity" ntawm resonance, DC siab -voltage generator txais ib kauj ruam ntawm kev hloov hluav taws xob:
Rectification: AC input (220V / 380V) hloov dua siab tshiab rau hauv pulsating DC los ntawm tus choj rectifier
Boosting: Pulsating DC ua tiav qhov hluav taws xob leap los ntawm transformer (thib ob lem ≫ thawj)
Filtering thiab voltage stabilization: capacitors thiab inductors ua haujlwm ua ke kom du waveforms thiab txo cov kev hloov pauv
Kev tiv thaiv mechanism: Lub sijhawm saib xyuas ntawm overvoltage tiv thaiv Circuit Court kom ntseeg tau tias cov zis muaj kev nyab xeeb
02 Cov koom haum tsis meej, zais ntawm kev sib tshuam ntawm daim ntawv thov scenarios
Lub luag haujlwm tseem ceeb: Voltage tiv thaiv kev ntsuas cov khoom siv hluav taws xob
Lub hom phiaj ntawm ob qho tib si series resonant thiab DC siab -voltage generators yog los xyuas cov rwb thaiv tsev lub zog ntawm cov khoom siv hluav taws xob tseem ceeb, xws li:
kab hluav taws xob
transformer winding
Generator rwb thaiv tsev system
Zinc oxide xob laim ntes
Kev siv technology zoo dua
Cov lus hauv qab no qhia txog yuav ua li cas ob leeg qhia lawv lub peev xwm raws li qhov yuav tsum tau muaj ntawm qhov chaw:
| Sib piv Dimension|Series Resonant Ntaus|DC High Voltage Generator |
|--------------------|-----------------------------|---------------------------|
| Tso zis hom|Fais fab zaus/Variable zaus AC High Voltage|Ntshiab DC High Voltage |
| Cov cuab yeej siv tau zoo tshaj|Capacitive Load (Cable, GIS)|Resistive Load (Surge Arrester, Generator)|
| Zog efficiency|Tsis tshua muaj siab (tsuas yog them nyiaj rau kev poob qis)|Nruab nrab (yuav tsum tau hloov dua siab tshiab)|
|Voltage waveform influence|Yuav simulate kev khiav hauj lwm tej yam kev mob|Ib qho yooj yim ua rau qhov chaw nqi tsub zuj zuj|
|Cov cuab yeej sawv cev|Tsis paub meej zaus Resonant System ntawm Wuhan UHV Fais Fab Technology Co., Ltd.|ZGF Series DC Generator |
Cov xwm txheej tiag tiag ntawm kev sib ntaus sib tua
Thaum ua tiav cov kev xeem ntawm tus ntoo khaub lig- txuas polyethylene cables ntawm 500kV substation, engineers siv "series resonance + DC high voltage" ob-stage test method:
Ua ntej, siv lub zog zaus tiv taus qhov hluav taws xob (128kV / 60 feeb) siv qhov sib txawv zaus series resonant ntaus ntawv los ntsuas lub ntsiab rwb thaiv tsev lub zog
Siv lub polarity reversal voltage siv DC siab -voltage generator los xyuas qhov chaw them nqi hauv cov khoom siv rwb thaiv tsev
Sib piv ob hom kev xeem cov ntaub ntawv kom raug kuaj xyuas qhov kev laus ntawm cov kab hluav taws xob rwb thaiv tsev
Qhov kev sib xyaw ua ke no tau ua tiav rau ntau qhov siab -voltage cable tej yaam num los ntawm Wuhan Ultra High Voltage Power Technology Co., Ltd., nrog rau qhov kev kuaj pom qhov txhaum tau nce ntau dua 40%.
03 Qhov tseem ceeb tawg, kev sib koom ua ke ntawm kev tshawb nrhiav lub zog niaj hnub
Kev txawj ntse kiv puag ncig ntawm Control Systems
Cov tiam tshiab ntawm cov cuab yeej ua tiav kev tswj xyuas meej los ntawm kev ua cov teeb liab digital (DSP) chips:
Lub resonant ntaus ntawv cia li scans LC tsis thiab xauv qhov pom zaus taw tes
Lub tshuab hluav taws xob DC txais PID kaw- voj algorithm kom ruaj khov rau qhov tso zis hluav taws xob
Ob leeg tuaj yeem txuas nrog rau cov chaw taws teeb saib xyuas platform los ntawm Ethernet interface
Kev sib koom ua ke txhim kho kev tiv thaiv kev ruaj ntseg
Lub kaw lus resonant cia li txwv qhov tam sim no vim muaj kev hloov pauv tam sim ntawd thaum lub sijhawm ua piv txwv flashover
Configure millisecond theem overvoltage tiv thaiv Circuit Court rau DC generator
Cov cuab yeej siv siab kawg xws li GZF-200kV series ntawm Wuhan ultra-high voltage muaj kev sib koom ua ke dual system thaiv kev tiv thaiv
04 Xaiv Phau Ntawv Qhia, Plaub Kauj Ruam Xauv Hauv Qhov Zoo Tshaj Plaws
Tau ntsib nrog cov kev xeem nyuaj, txiav txim siab raws li cov laj thawj no:
Kev txiav txim siab hom qauv:
Cov khoom siv capacitive (cables, lub tes tsho capacitive) → qhov tseem ceeb series resonance
Cov khoom siv tiv thaiv (xov tooj cua ntes, lub tshuab hluav taws xob) → Xaiv DC high voltage
Kev lees paub qhov voltage:
Cables hauv qab 35kV → Ultra low zaus high voltage generator siv tau
GIS saum toj no 110kV → xav tau zaus hloov dua siab tshiab resonance system
Test standard pov thawj:
IEC 60270 yuav tsum tau siv qee qhov kev kuaj tawm → tsis tshua muaj suab nrov sib txawv ntawm lub zog hluav taws xob yuav tsum tau siv
GB/T 16927.1 DC Tsis Siv Neeg Voltage - DC Source nrog Ripple Factor<3%<>
Extension Function ntsuam xyuas:
Koj puas xav tau ib qho kev sib txuas synchronous rau kev kuaj tawm ib nrab?
Puas muaj qhov tshwj xeeb tam sim no rau kev ntsuas kub nce?
Cov lus qhia kev tshaj lij: Lub CISF-800kVA / 200kV resonant system ntawm Wuhan Ultra High Voltage Power Technology Co., Ltd. tuaj yeem txo lub sij hawm tuning los ntawm 30% hauv kev kuaj kab ntev vim nws qhov tshwj xeeb adaptive impedance txuam technology.
05 Qhov kawg Interrogation, Leej twg yog tus huab tais yav tom ntej?
Cov lus teb tsis yog kev xaiv binary. Kev koom ua ke thev naus laus zis tau dhau los ua qhov tseeb:
Resonant DC fais fab mov: txuas nrog lub rectifier unit tom qab lub resonant circuit, combining high efficiency thiab DC tso zis
Composite yoj generator: muaj peev xwm hloov pauv AC resonant nthwv dej thiab DC siab -voltage waves
Intelligent diagnostic platform: xws li Wuhan UHV's PowerTest 5.0 system, uas tuaj yeem synchronously txheeb xyuas cov ntaub ntawv resonance / DC xeem thiab tsim cov ntaub ntawv pov thawj kev noj qab haus huv.
Cov lus nug nquag nug (FAQ)
Q1: Vim li cas ho tsis siv DC high voltage siv rau XLPE cable lub ntsiab rwb thaiv tsev kuaj?
A: Ib qho hluav taws xob ncaj qha tam sim no tuaj yeem ua rau tsim qhov chaw tsub hauv cov ntaub ntawv polyethylene, uas tuaj yeem ua rau cov rwb thaiv tsev tawg thaum raug rov qab los. Cov txheej txheem thoob ntiaj teb tau txwv cov kev ntsuas ncaj qha tam sim no.
Q2: Dab tsi yog qhov cuam tshuam ntawm "Q tus nqi" ntawm series resonant ntaus ntawv?
A: Qhov siab dua Q tus nqi (qhov zoo tshaj), qhov qis dua qhov xav tau lub zog nkag, tab sis qhov system stability txo. Feem ntau tswj nyob rau hauv qhov ntau ntawm 20-80, nws yuav tsum tau kho raws li tus qauv peev xwm.
Q3: Yuav ua li cas xaiv lub lim capacitor rau DC generator?
A: Raws li cov qauv C Ntau dua lossis sib npaug rau (3 ~ 5) × T / R (T yog lub sijhawm, R yog qhov kev tiv thaiv kev tiv thaiv), thiab cov kab hluav taws xob tiv thaiv yuav tsum siab dua lossis sib npaug li 1.5 npaug ntawm qhov ntsuas hluav taws xob.
Q4: Thaum twg nws tsim nyog los koom tes nrog lub tshuab hluav taws xob ultra- zaus tsawg zaus?
A: Rau cov kab hluav taws xob nruab nrab ntawm 35kV thiab qis dua, 0.1Hz ultra- tsis tshua muaj zaus tuaj yeem hloov lub zog zaus tiv taus hluav taws xob, thiab cov khoom ntim tsuas yog 1/5 ntawm cov khoom siv resonant.
Q5: Lub tshuab hluav taws xob puas tuaj yeem siv los ua kom muaj hluav taws xob DC siab?
A: Technically ua tau - ntxiv cov rectification thiab filtering unit ntawm resonant tso zis kawg, tab sis yuav tsum tau them nyiaj mloog mus rau kev sib piv cov Circuit Court impedance. Cov cuab yeej tshaj lij xws li WHTGYCISF-Z series tau ua tiav kev tsim qauv.