Uphuhliso lobuchwephesha lwe-UHV AC Transmission kunye neZixhobo zoTshintsho

UHV isixhobo imbuyekezo series

Kulwakhiwo olukhulu lweeprojekthi zombane we-ultra-high, izixhobo ezingundoqo zingundoqo.

Ukuze kukhuthazwe uphuhliso oluthe kratya lwetekhnoloji yothumelo lwe-UHV AC, uphuhliso lobugcisa lwamva nje lwezixhobo eziphambili

njenge-UHV AC transformer, igesi efakwe kwintsimbi evalelweyo (GIS), isixhobo sembuyekezo sothotho kunye nesibambisi sombane

kushwankathelwa kwaye kulindelwe.

Iziphumo zibonisa ukuba:

Ixabiso elivumelekileyo lamandla ombane xa ukukhutshwa ngokuyinxenye kwe-UHV transformer yi-1 ‰ iya kunyulwa njenge

amandla entsimi avumelekileyo;

Amanyathelo okulawula ukuvuza kwemagnethi afana nokukhusela imagnethi ekupheleni komzimba, ukukhuselwa kombane kwitanki yeoli, ukukhuselwa kombane.

yetanki yeoli, kunye nepleyiti yentsimbi engasebenziyo imagnethi inokunciphisa ngokufanelekileyo ukuvuza kwamagnetic kunye nokunyuka kobushushu be-1500 MVA.

umthamo omkhulu we-UHV transformer;

Umthamo wokuqhawula we-UHV we-circuit breaker unokufikelela kwi-63kA.Isekethe yovavanyo yokwenziwa esekelwe "kwindlela yesekethe ezintathu" inokuphuka

ngomda wezixhobo zovavanyo kwaye ugqibezele uvavanyo lokuqhawuka kwe-1100kV i-circuit breaker;

Kucacile ukuba i-amplitude kunye ne-frequency ye-VFTO ilinganiselwe ngokufaka i-resistors yokumanzisa kwicala loqhagamshelwano olusisigxina "ethe nkqo"

izixhumi;

Ukusuka kwindawo yokujonga amandla ombane osebenza ngokuqhubekayo, kukhuselekile ukunciphisa amandla ombane alinganisiweyo we-UHV arrester ukuya kuma-780kV.

I-UHV AC yexesha elizayo yothumelo lwamandla kunye nesixhobo soguqulo kufuneka ifundwe nzulu malunga nokuthembeka okuphezulu, umthamo omkhulu,

Umgaqo-siseko omtsha wokusebenza kunye nokwenza ngcono iparamitha.

Isiguquli se-UHV AC, isixhobo sokutshintsha, isixhobo sembuyekezo kunye nesibambisi sombane sesona sixhobo siphambili sothumelo lwe-UHV AC

iprojekthi.Ngeli xesha, siza kugxila ekuhleleni nasekushwankatheleni uphuhliso lwetekhnoloji yamva nje kwezi ntlobo zine zezixhobo.

Uphuhliso UHV isixhobo imbuyekezo series

Isixhobo sembuyekezo se-UHV sisombulula ezi ngxaki zilandelayo: impembelelo yokusetyenziswa kothotho lwembuyekezo

iimpawu zenkqubo, ukwenziwa ngcono kweeparamitha ezingundoqo zobugcisa zoluthotho lwembuyekezo, i-anti electromagnetic eyomeleleyo.

Ukuphazamiseka kwamandla olawulo, ukhuseleko kunye nenkqubo yokulinganisa, uyilo kunye nokhuseleko lwebhanki ye-super capacitor,

umthamo wokuhamba kunye nokuthembeka komsebenzi woluhlu lwe-spark gap yembuyekezo, umthamo wokukhutshwa koxinzelelo kunye nokusebenza ngoku ukwabelana

Isithinteli sombane, ukuvula ngokukhawuleza kunye nomthamo wokuvala weswitshi yokudlula, isixhobo sokudambisa, ikholamu yefayibha

uyilo lwe-transformer yangoku kunye neminye imiba ephambili yobugcisa.Ngaphantsi kweemeko ze-ultra-high voltage, i-ultra-high current kunye ne-ultra-high

umthamo, ingxaki ukuba inani lezalathisi eziphambili zobugcisa kuthotho imbuyekezo izixhobo eziphambili ukufikelela umda yokusebenza

yoyisiwe, kwaye izixhobo ezingundoqo zembuyekezo yombane we-Ultra-high iye yaphuhliswa, kwaye zonke ziphumelele.

ukwenziwa kwasekhaya.

Ibhanki yeCapacitor

Ibhanki ye-Capacitor yembuyekezo yochungechunge yinxalenye yomzimba esisiseko ukuqonda umsebenzi wembuyekezo yothotho, kwaye yenye yezitshixo.

izixhobo zesixhobo imbuyekezo series.Inani le-UHV yembuyekezo yochungechunge lwe-capacitors kwiseti enye ukuya kuma-2500, amaxesha angama-3-4

leyo yembuyekezo ye-500kV series.Ijongene nenani elikhulu leengxaki zoqhagamshelwano oluhambelanayo lweeyunithi ze-capacitor phantsi ezinkulu

amandla embuyekezo.Iskimu sokukhusela i-H-bridge sicetywa e-China.Idityaniswe netekhnoloji yokufaka iintambo, iyasombulula

Ingxaki yolungelelaniso phakathi kobuntununtunu bokubhaqwa kwangoku okungalungelelananga kwe-capacitors kunye nolawulo lwamandla atofwayo, kunye

isombulula ingxaki yobugcisa bokugqabhuka okunokwenzeka kothotho lweebhanki ze-capacitor.Umzobo wequmrhu kunye ne-wiring schematic diagram ye-series capacitor

iibhanki ziboniswe kwiMizobo 12 kunye ne-13.

Amanani 12 Capacitor bank

Amanani 13 Imo yocingo

Ukunciphisa uxinzelelo

Ngokujonga iimfuno zokuthembeka ezibalela kakhulu zembuyekezo ye-UHV, indlela yokuthelekisa itshiphu yokumelana ngokukodwa.

iphuculwe, kwaye i-coefficient ye-shunt phakathi kweekholamu iyancitshiswa ukusuka kwi-1.10 ukuya kwi-1.03 emva kwe-100 yeekholamu ze-resistor chip zesigaba ngasinye.

i-voltage limiter ixhunyiwe ngokuhambelanayo (ikholamu nganye ye-resistor chip ixhunyiwe kwi-series nge-resistors ezingama-30).Uxinzelelo oluyilwe ngokukodwa

ukukhululwa isakhiwo yamkelwa, kunye nokukhululwa amandla amandla ifikelela 63kA / 0.2s phantsi komqathango ukuba uxinzelelo ibhatyi porcelain

Iyunithi ye-limiter yi-2.2m ukuphakama kwaye akukho sahluli we-arc ngaphakathi.

Umsantsa wentlantsi

Amandla ombane alinganisiweyo wesithuba sentlantsi yembuyekezo yothotho lwe-UHV ifikelela kwi-120kV, engaphezulu kakhulu kune-80kV yesikhewu sentlantsi ye-UHV.

uthotho imbuyekezo;Umthamo wangoku wokuthwala ufikelela kwi-63kA / 0.5s (ixabiso le-peak 170kA), amaxesha angama-2.5 kwi-gap ye-ultra-high voltage.I

Umsantsa wentlantsi ophuhlileyo unemisebenzi efana nechanekileyo, elawulekayo kwaye ezinzileyo yokukhupha amandla ombane, impazamo eyaneleyo yokuphatha ngoku.

umthamo (63kA, 0.5s), amakhulu ee-microseconds abangela ukulibaziseka kokukhutshwa, ukukwazi ukubuyiswa ngokukhawuleza kwe-insulation engundoqo (emva kokudlula i-50kA/60ms

okwangoku, i-voltage yokubuyisela ngexabiso leyunithi ifikelela kwi-2.17 ngexesha le-650ms), ukuxhathisa okunamandla kwe-electromagnetic interference, njl.

Series imbuyekezo iqonga

Iqonga lembuyekezo elicwengileyo, elinzima, elikwinqanaba eliphezulu le-UHV lembuyekezo liyilwe, lenza i-UHV ekhethekileyo yamazwe ngamazwe.

uthotho lwembuyekezo uhlobo lovavanyo lokwenyani kunye nekhono lophando;Imodeli yohlalutyo lomatshini olunamacala amathathu kunye namandla entsimi obunzima

izixhobo ezininzi zisekiwe, kwaye uyilo oludityanisiweyo kunye neskimu senkxaso yezixhobo zeqonga lohlobo lwebhasi ezintathu ezidityanisiweyo

kunye nolwakhiwo olukhulu olubiyelweyo olucetywayo, olusombulula iingxaki ze-anti-seismic, ulungelelwaniso lwe-insulation kunye nokusingqongileyo kwe-electromagnetic.

ulawulo lweqonga lokutyeba kakhulu (200t);I-UHV series imbuyekezo uhlobo lokwenyani iqonga lovavanyo sele lakhiwe, eliye labumba isikali esikhulu

ulungelelwaniso lwe-insulation yangaphandle, i-corona kunye namandla ebala lendawo, ukuhambelana kwe-electromagnetic kwezixhobo zangoku ezibuthathaka eqongeni

kunye nezinye izakhono zovavanyo lweqonga imbuyekezo uthotho, egcwalisa blank UHV series imbuyekezo uphando uphando.

Ukutshintsha kwe-Bypass kunye nesixhumi sokugqitha

Igumbi elikhulu lokucima i-arc kunye ne-high-speed mechanism yaphuhliswa, eyasombulula iingxaki zesikhokelo.

kunye namandla omatshini we-10m ultra long insulated intonga yokutsala phantsi kwentshukumo yesantya esiphezulu.Eyokuqala SF6 porcelain ikholamu uhlobo bypass iswitshi

kunye nesakhiwo esine-T saphuhliswa, kunye nesantya esilinganisiweyo se-6300A, ixesha lokuvala ≤ 30ms, kunye nobomi bomatshini bexesha le-10000;

Indlela yokongeza i-axiliary vacuum circuit breaker kuqhagamshelwano oluphambili kunye nokutshintsha okwangoku ngesibonda esiphambili kucetywayo.Eyokuqala

uhlobo oluvulekileyo lwe-bypass disconnector luyaphuhliswa, kwaye ukutshintshwa kwamandla okutshintsha okwangoku kuphuculwe kakhulu kwi-7kV / 6300A.

Ukuhambelana kwe-electromagnetic kwezixhobo zangoku ezibuthathaka kwiqonga

Iingxaki zobuchwephesha ezinjengolawulo oludlulayo lwexeshana kwiqonga lembuyekezo ye-UHV kunye nokuhambelana kwe-electromagnetic

izixhobo zangoku ezibuthathaka phantsi amandla aphezulu kunye nokuphazamiseka eyomeleleyo ziye zoyiswa, kunye neqonga imbuyekezo series

inkqubo yokulinganisa kunye ne-spark gap trigger ibhokisi yokulawula enegunya eligqithisileyo lokuphazamiseka kwe-electromagnetic interference

iphuhlisiwe.Umzobo we-14 ngumzobo wentsimi wesixhobo sembuyekezo se-UHV.

Iseti yokuqala yamazwe ngamazwe ye-UHV esisigxina isixhobo sembuyekezo esisigxina ngokuzimeleyo ephuhliswe yi-China Electric Power Research Institute

ifakwe ngempumelelo kwiprojekthi yokwandisa iprojekthi yokubonisa i-UHV AC.Ireyithingi yangoku yesixhobo

ifikelela kwi-5080A, kwaye umthamo olinganisiweyo ufikelela kwi-1500MVA (amandla asebenzayo).Iimpawu eziphambili zezobugcisa ziqala kuqala kwihlabathi.I

umthamo wothumelo lweprojekthi yokubonisa i-UHV yondisiwe ngesigidi esi-1 kW.Injongo yosulelo oluzinzileyo lwe-5

izigidi kW ngesekethe enye UHV imizila iphunyeziwe.Ukuza kuthi ga ngoku, umsebenzi okhuselekileyo, ozinzile nothembekileyo ugcinwe.

Umfanekiso 14 1000KV UHV Series Isixhobo Imbuyekezo