1.Introduction: ntsiab lus thiab lub ntsiab lus
1.1 Cov xwm txheej tam sim no ntawm cov pa phem nyob hauv daim phiaj hluav taws xob
Nrog rau txoj kev loj hlob sai ntawm kev lag luam automation thiab cov thev naus laus zis tshiab, cov khoom siv hluav taws xob tsis sib xws (xws li kev hloov pauv zaus, rectifiers, hluav taws xob arc, thiab lwm yam) hauv cov phiaj xwm hluav taws xob tau nce ntau. Cov khoom siv no tsim cov kev sib raug zoo tam sim no thaum lub sijhawm ua haujlwm, ua rau muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, qhov hloov pauv ntawm qhov hluav taws xob, flicker thiab peb - theem imbalance. Raws li kev txheeb cais, kev sib haum xeeb muaj kuab paug rau ntau dua 30% ntawm kev lag luam khoom siv tsis ua haujlwm, ua rau kev lag luam ncaj qha poob ntawm billions ntawm yuan txhua xyoo.
1.2 Core Position of High-Voltage Series Reactors
High-voltage series reactor yog cov cuab yeej tseem ceeb los daws cov teeb meem kev sib raug zoo thiab txhim kho lub zog hluav taws xob los ntawm kev siv lub hauv paus ntsiab lus ntawm series resonance los suppress harmonic series. Nws daim ntawv thov tuaj yeem txo qis tag nrho kev sib haum xeeb distortion, stabilize voltage amplitude, ua kom muaj zog thiab ua kom lub neej ntev. Nws ua raws li 519-2014 "Kev Pom Zoo rau Kev Tswj Xyuas Kev Tswj Xyuas Hluav Taws Xob thiab Tuam Tshoj tus GB/T 14549-1993"Power Quality-Harmonics.
2.Txoj Cai Ua Haujlwm ntawm High-Voltage Series Reactors: Kev Ntsuam Xyuas Series Resonance Suppression Technology
2.1 Basic Theory of Series Resonance
Thaum lub inductor (L) thiab lub capacitor (C) nyob rau hauv series, tag nrho impedance yog muab raws li nram no:
Tau qhov twg los: Cov Ntsiab Cai ntawm Circuit Analysis (Li Hansun)
2.2 Harmonic Suppression Mechanism
Los ntawm kev tsim cov reactor tsis (xws li inductance tus nqi L) kom phim lub resonant zaus fr mus rau lub hom phiaj harmonic series (piv txwv li, lub resonant zaus ntawm lub thib tsib harmonic yog 250 Hz), aa low-impedance txoj kev yog tsim rau lub thib tsib harmonic los tiv thaiv nws ntws mus rau hauv daim phiaj fais fab. Kev ntsuas cov ntaub ntawv qhia tias tom qab reactor installation, 5 harmonic tam sim no tus nqi attenuation tuaj yeem tshaj 70%, THD tuaj yeem txo los ntawm 8% mus rau tsawg dua 3%.
Reference: Kawm txog Kev Siv Cov Hluav Taws Xob Cov Hluav Taws Xob hauv Kev Sib Raug Zoo (Kev Tshawb Fawb ntawm Hluav Taws Xob Hluav Taws Xob Technology)
3. Hom thiab xaiv High-Voltage Series Reactors: Sib piv cov kev daws teeb meem sib txawv
3.1 Kev sib piv ntawm cov qauv qauv
TypeOil-Immersed ReactorDry-Type ReactorHeat Dissipation Performance
Zoo heev (roj ncig txias)
Qhov txawv (nyob ntawm huab cua convection)
Muaj peev xwm ntau
Loj ( haum rau high voltage thiab siab tam sim no)
Me me (rau nruab nrab-thiab qis-voltage scenarios)
Ib puag ncig tsim nyog
Sab nraum zoov (yuav tsum tau tsim pov thawj tawg)
Sab hauv tsev (ib puag ncig xav tau scenes)
Kho cov nqi
Siab (yuav tsum tau hloov roj thiab kuaj cov roj zoo)
Tsawg (kev tu-dawb)
Siv: Siemens thiab ABB Reactor Technical Manuals
3.2 Qhov tseem ceeb Parameter Xaiv
Reactance Rate (%): xaiv nyob rau hauv harmonic kev txiav txim. Piv txwv li, kev tawm tsam ntawm tsib qhov kev sib haum xeeb yuav tsum muaj 5% reactance thiab kev tawm tsam ntawm xya harmonics yuav tsum muaj 7% reactance.
Rated tam sim no thiab kub nce: yuav tsum phim lub peev xwm thauj khoom kom tsis txhob overheating thiab tsis ua hauj lwm. IEC 60076-6 teeb tsa qhov kub thiab txias ntawm 100K (ambient kub 40 degree) rau reactors.
Tau qhov twg los: IEC 60076-6 Fais fab Transformers thiab Reactor
4.Core Lub luag hauj lwm ntawm High-Voltage Series Reactors hauv Harmonic Suppression
4.1 Harmonic Suppression Case Study for Nonlinear Loads
Piv txwv li, tom qab kev teeb tsa ntawm lub reactor, lub harmonic spectrum tsim los ntawm zaus converters feem ntau yog 5 thiab 7 harmonics:
Qhov thib tsib harmonic tam sim no poob ntawm 120A mus rau 35A nrog tus nqi attenuation ntawm 70.8%.
Lub 7th harmonic tam sim no poob ntawm 80A mus rau 20A nrog tus nqi attenuation ntawm 75%.
Source: Field Test Report ntawm harmonic suppression project ntawm steel zeb
4.2 Qhov cuam tshuam ntawm kev txo qis ntawm Tag Nrho Harmonic Distortion
Los ntawm PSCAD / EMTDC simulation, cov kev hloov pauv hauv THD qhov tseem ceeb ua ntej thiab tom qab kev teeb tsa reactor yog raws li hauv qab no:
Scene ua ntej installation Scene tom qab installation InstallationImprovement RateIndustrial Park Grid
7.8%
2.9%
62.8%
Tshiab zog nroj tsuag Grid Connection
6.5%
2.1%
67.7%
Tau qhov twg los: PSCAD/EMTDC simulations
V. Kev Txhim Kho Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Zoo los ntawm High-Voltage Series Reactors
5.1 Voltage fluctuation thiab flicker suppression
Lub reactor stabilizes voltage amplitude los ntawm absorbing reactive zog. Piv txwv li, nyob rau hauv ib lub zog-kev kho kom zoo nyob rau hauv ib qho chaw ua si, tom qab lub installation ntawm lub reactor:
Voltage fluctuation ntau yam txo los ntawm ± 8% mus rau ± 3%.
Ua raws li GB/T 12326-2008 Lub Hwj Chim Zoo-Voltage Fluctuation thiab flicker yuav tsum tau.
Source: Energy audit report of a industrial park.
5.2 Kev txhim kho ntawm Lub Hwj Chim Lub Zog thiab Kev Txhim Kho ntawm Cov Khoom Siv Lub Neej
Lub reactor txo reactive zog poob thiab txhim kho kab kis tau tus mob efficiency. Kev ntsuas cov ntaub ntawv qhia:
Lub zog hluav taws xob tau nce los ntawm 0.75 mus rau 0.95 thiab cov kab poob tau raug txo los ntawm 36%;
Transformers, cables thiab lwm yam khoom siv tau txo qhov kev pheej hmoo ntawm overheating thiab qhov nruab nrab lifespan ntawm 5 mus rau 8 xyoo.
Tau qhov twg los: tshaj tawm lub Substation zog-txuag renovation project.
6. Kev teeb tsa thiab kev saib xyuas ntawm High-Voltage Series Reactors: Qhov tseem ceeb rau kev ruaj ntseg ntev- lub sijhawm thiab kev ua haujlwm ruaj khov
6.1 Installation Location thiab Wiring Specifications
Kev xaiv qhov chaw: Nruab nyob ze ntawm qhov chaw tsis muaj kab nrib pleb, ua kom luv kev sib haum xeeb propagation;
Txoj Kev Txuas Hluav Taws Xob: Lub hnub qub kev sib txuas (Y) yog qhov tsim nyog rau peb -theem equilibrium load thiab delta kev twb kev txuas (Δ) yog tsim rau kev tsub zuj zuj ntawm peb harmonic.
Siv: GB 50227-2017 Shunt Capacitor Devices Design Specification
6.2 Kev tshuaj xyuas niaj hnub thiab kev ua txhaum cai
Kev soj ntsuam cov ntsiab lus: Kev ntsuas kub nce siab (tsawg dua lossis sib npaug ntawm 100K), kev ntsuas kev tiv thaiv hluav taws xob (tsawg dua lossis sib npaug li 100M), kev tshawb nrhiav suab nrov (tsawg dua lossis sib npaug ntawm 65dB);
Feem ntau Faults: Coil luv circuits (40%%), kev laus rwb thaiv tsev (30%), yuav tsum tau kev tiv thaiv tsis tu ncua.
Tau qhov twg los: TBEA Reactor Repair Guide
7. Cov lus xaus thiab kev pom zoo
7.1 Irreplaceability
High-voltage tandem reactor siv lub hauv paus ntsiab lus ntawm series resonance los suppress harmonics kom raug, uas dhau los ua cov cuab yeej tseem ceeb los txhim kho lub zog hluav taws xob zoo thiab ua kom muaj kev nyab xeeb ntawm cov khoom siv. Cov thev naus laus zis muaj kev loj hlob zoo thiab muaj txiaj ntsig zoo rau cov nyiaj. Nws yog dav siv nyob rau hauv kev lag luam, tshiab zog thiab tsheb thauj mus los.
7.2 Yav Tom Ntej Trends
Kev soj ntsuam ntse: Kev sib koom ua ke IoT thev naus laus zis kom paub tseeb- sijhawm sau cov ntaub ntawv thiab ceeb toom txhaum;
Kev siv cov khoom siv tshiab: kev txhim kho siab -kub superconducting reactors kom txo qis thiab ua kom muaj peev xwm.
Cov ntaub ntawv:
519-2014 Pom zoo Xyaum rau Harmonic Control ntawm Fais Systems
GB/T 14549-1993 Lub Zog Zoo-Harmonics
"Cov Ntsiab Cai ntawm Kev Ntsuas Circuit Court" (Li Hansun)
Siemens thiab ABB Reactor Technical Manuals
Field Test Report on Harmonic Control Engineering of a Steel Plant