HYSVC uthotho lwamandla ombane aphezulu aguqukayo isixhobo sokucoca amandla asebenzayo wembuyekezo

Ingcaciso yeMveliso

Ezona ziphambili zezi:
●Kukho ukuguquguquka okukhulu kwamandla ombane kunye ne-flicker.
● Inani elikhulu lee-harmonics ezikumgangatho ophezulu zenziwa: isithando sombane se-arc silawulwa yimimiselo ephantsi njenge-2 ~ 7;imithwalo yokubuyisela kunye nokuguqulwa kwamaxesha amaninzi i-5, 7. 11, kunye ne-13.
● Ukudala ukungalingani kwezigaba ezithathu kwigridi yamandla, okukhokelela kulandelelwano olubi lwangoku.
● Umbane ophantsi ukhokelela ekulahlekeni kwamandla.

Indlela yokusombulula ngokupheleleyo ezi ngxaki zingentla kukuba umsebenzisi kufuneka afake i-var compensator (SVC) enesantya sokuphendula ngokukhawuleza.I-voltage yegridi, ukuphucula ukusebenza kakuhle kwemveliso, kunye nokunciphisa ifuthe le-flicker.Umsebenzi wembuyekezo yokwahlula-hlulwa kwesigaba se-svc unokuphelisa ukungalingani kwesigaba sesithathu esibangelwa ngumthwalo ongalinganiyo, kunye nesixhobo sokucoca sinokuphelisa i-harmonics enobungozi obuphezulu kunye nokuphucula umgangatho wamandla, kunye nokuphucula amandla ombane ngokubonelela nge-capacitive amandla asebenzayo kwinkqubo.

imodeli yemveliso

Inkcazo yoMfanekiso

I-SVC yahlulwe yazintlobo ezimbini: i-SVC esembindini kunye ne-SVC esasazwayo
I-SVC esembindini idla ngokufakelwa kwibhasi ene-voltage ephezulu kwisitishi okanye kwigumbi lokuhambisa umbane, kwaye amandla ombane ayo ngokuqhelekileyo yi-6kV~35kV.Imbuyekezo esembindini yomthwalo wesityalo sonke isetyenziswa ngoku eTshayina.
I-SVC esasazwayo isasazwa ngokubanzi kwaye ifakwe ecaleni komthwalo wempembelelo (njengecala lesibini le-transformer ye-rectifier), kwaye i-voltage yayo ifana ne-voltage yomthwalo, kwaye umthwalo wempembelelo uhlawulelwa kwindawo.Imbuyekezo eyabiwayo ineempawu zokugcina amandla kunye nokunciphisa umthwalo wabaguquli.
Izicelo kunye nesiKhokelo sokuKhetha
Le mveliso isetyenziswa ikakhulu kwiziko zombane ze-arc, ii-rolling Mills, iihoists zemigodi, iilocomotives zombane, iifama zomoya kunye nezinye izihlandlo.
● I-voltage kwicala lesibini le-arc yombane iphantsi kwaye iyaguquguquka, kwaye i-SVC ephakathi isetyenziswa ngokubanzi.
●Xa inani lee-rolling Mills kwi-rolling mill lincinci, i-SVC esasazwayo isetyenziswa ngokubanzi, enefuthe elihle lokonga amandla, amandla ombane azinzileyo kwicala lesibini le-rectifier ye-rectifier, ukusebenza kakuhle kwemveliso, kunye notyalo-mali oluncinci.
●Xa inani lee-rolling Mills kwi-rolling mill inkulu, i-SVC esasaziweyo okanye i-SVC esembindini ingasetyenziswa.I-SVC esasazwayo inefuthe elihle lokonga amandla, i-voltage ezinzileyo kwicala lesibini le-rectifier ye-rectifier, kunye nokusebenza okuphezulu kwemveliso.Utyalo-mali oluphezulu olusembindini we-SVC Nangona isiphumo sokonga amandla sibi kancinci, kodwa utyalo-mali luncinci.
●Isixhobo sokunyusela umgodi sikholisa ukusebenzisa i-SVC esasaziweyo kunye nesixhobo sokuhluza esinombane ophezulu.I-SVC esasazwayo ihlawulela ubukhulu becala umthwalo wempembelelo ye-hoist, kunye nesixhobo sokucoca i-voltage ephezulu sihlawula imithwalo eseleyo ngokuzinzileyo.
● Inkqubo yamandla efama yomoya idla ngokuba yincinci, kwaye ukuhla kwamandla ombane kwitheminali yeinjini yomoya kukhulu kakhulu.Kunconywa ukusebenzisa i-SVC esasazwayo.

Iiparamitha zobuGcisa

Iimpawu zesixhobo
● Ibhanki yokucoca ilungisiwe, ngoko akusafuneki ukuba itshintshe ngokuzenzekelayo ngokwenguqu yomthwalo, ngoko ukuthembeka kwayo kwanda kakhulu.
● Ukulandelela ngokuzenzekelayo iiparitha zenkqubo ngokokutshintsha komthwalo, tshintsha ngokuzenzekelayo i-angle yokuqalisa ye-TCR, ngaloo ndlela utshintsha amandla okuphuma kwe-TCR.
● Ukusebenzisa iteknoloji yedijithali ye-DSP ephezulu, isantya sokusebenza ngu <10ms;ukuchaneka kolawulo yi-± 0.1 degree.<>
● I-SVC esembindini ithatha itekhnoloji ye-photoelectric trigger ephuculweyo, eyenza umbane ophezulu kunye nophantsi ophakathi kombane kunye nokuphucula amandla okuthintela ukuphazamiseka.Iteknoloji yokukhusela i-BOD thyristor yamkelwa ngokukhawuleza kwaye ikhusele ngokufanelekileyo i-thyristor.Ubuchwephesha bokupholisa amanzi obucocekileyo busetyenziselwa ukupholisa ngokukhawuleza iqela le-valve kunye nokuqinisekisa ukusebenza okuthembekileyo kunye nokusebenza kakuhle kwe-thyristor.
● I-thyristors ye-SVC esasazwayo ayifuni ukudibaniswa kwichungechunge okanye ngokufana, kwaye ukuthembeka kwabo kuphuculwe kakhulu.
I-TCR + FC static low-voltage eguqukayo isixhobo sembuyekezo yamandla asebenzayo (SVC) ikakhulu iqulunqwe ngamalungu amathathu, i-FC filter, i-TCR thyristor control circuit kunye nenkqubo yokukhusela yokulawula.Isihluzi seFC sisetyenziselwa ukubonelela ngembuyekezo yamandla asebenzayo kunye nokucoca i-harmonic, kunye ne-TCR thyristor control reactor isetyenziselwa ukulungelelanisa amandla asebenzayo asebenzayo avela ngokuguquguquka komthwalo kwinkqubo.Ngokulungelelanisa i-angle yokudubula ye-thyristor, i-current flowing through the reactor ilawulwa ukufezekisa injongo yokulawula amandla asebenzayo.Isixhobo se-SVC sitshintsha amandla asebenzayo (i-inductive reactive power) ye-reactor ngokotshintsho lwamandla asebenzayo Qn womthwalo, oko kukuthi, kungakhathaliseki ukuba amandla asebenzayo omthwalo atshintsha njani, isixa-mali sesibini kufuneka sihlale sihlala. rhoqo, elilingana nebhanki ye-capacitor Ixabiso le-capacitive reactive power ethunyelweyo yenza amandla asebenzayo Qs athathwe kwigridi engaguqukiyo okanye i-0, kwaye ekugqibeleni igcina amandla ombane wegridi kwixabiso elimiselweyo, kunye ne-voltage kaninzi. iyaguquguquka, ukuze kuphunyezwe injongo yembuyekezo yamandla asebenzayo.Ukucinezela ukuguquguquka kwamandla ombane wenkqubo kunye nokuqhwanyaza okubangelwa kukutshintshatshintsha komthwalo
Ijiko lokutshaja, i-Qr ligophe lamandla asebenzayo afunxwa yi-reactor kwi-SVC.Umzobo 2 usezantsi CR + FC static
Umzobo weSchematic we-dynamic var compensator (SVC).

Ezinye iiparameters

Imiqathango yokusetyenziswa
● Umphakamo wofakelo kunye nommandla wokusebenza ngokuqhelekileyo awudluli kwi-1000m, kwaye uhlobo lwe-plateau luyafuneka ukuba lungaphezu kwe-1000m, ekufuneka icaciswe xa ku-odolwa.
● Ubushushu obuphakathi bofakelo kunye nendawo yokusebenza akufunekanga budlule -5°C~+40°C kufakelo lwangaphakathi kunye no-30°C~+40°C kufakelo lwangaphandle.
● Akukho ngcangcazelo lubukhali lomatshini, akukho rhasi inobungozi kunye nomphunga, akukho conductive okanye uthuli oluqhumayo kwindawo yofakelo kunye nokusebenza.

Imilinganiselo

Inkxaso yobugcisa kunye nenkonzo
●Umlinganiselo womthwalo
Kubandakanya ubungakanani bemveliso yangoku ye-harmonic yemithwalo eyahlukeneyo engahambelaniyo, isantya sokugqwethwa kwe-sinusoidal waveform yombane webhasi yobonelelo lwamandla, i-harmonics yangasemva yenkqubo yamandla, ukuguquguquka kombane kunye ne-flicker ebangelwa yimpembelelo yamandla asebenzayo, njl.
●Uphando lwenkqubo
Kubandakanywa iiparamitha zenkqubo yamandla afanelekileyo.Zonke i-wiring kunye nezixhobo zeparameter izifundo kunye nemithwalo engabonakaliyo.
●Uvandlakanyo lwenkqubo
Okwenziweyo umlinganiselo okanye ithiyori ubalo lokwenziwa kwe-harmonic, ixabiso lokuguquguquka kwamandla ombane kunye nokuqikelelwa kweengozi zayo, kunye nesicwangciso sokuqala solawulo.
●Uyilo olulungiselelweyo
Kubandakanya ukukhethwa kweparamitha yezixhobo, uyilo lwenkqubo olugqwesileyo kunye noyilo lwezixhobo zamacandelo aphambili, kunye noyilo lwesityalo.
●Ufakelo olukhokelwayo
Ukubonelela ngeseti ezipheleleyo zezixhobo zembuyekezo yamandla asebenzayo aguqukayo, kunye nokubonelela ngesikhokelo sofakelo olululo lwezixhobo
● Ukugunyaziswa kwisiza
Ukubonelela ngovavanyo lohlengahlengiso olukwisiza kunye novavanyo lwesalathiso sesixhobo sembuyekezo yamandla asezantsi-voltage aguqukayo.
● Inkonzo yasemva kokuthengisa
Ukubonelela ngoqeqesho, iwaranti, ukuphuculwa kwenkqubo kunye nezinye iinkonzo