6-35kV Umbane oPhezulu we-Static var Generator

I-SVG (i-Static Var Generator) sisixhobo sembuyekezo yamandla esebenzayo yangoku esebenzisa i-self-commutating phase change circuit yangoku. Yeyona teknoloji yamva nje kwintsimi yembuyekezo yamandla asebenzayo, eyaziwa ngokuba yi-STATCOM (Static Synchronous Compensator).

Isixhobo sembuyekezo samandla asebenzayo e-SVG esiveliswe yinkampani yethu sineengenelo kwisantya sokuphendula, i-voltage yegridi ezinzileyo, ilahleko yenkqubo ecuthiweyo, ukonyuka kwamandla othumelo, ukuphuculwa komda wamandla ombane odlulayo, i-harmonics encitshisiweyo, kunye nokuncipha kweenyawo.

Uphuhliso lwesixhobo sembuyekezo samandla asebenzayo eSVG luxhomekeke kumandla obuchule obuqinileyo benkampani yethu, kwaye lisebenzisa ngokupheleleyo itekhnoloji ephezulu kunye namava emveliso aluncedo kwinkampani yeqela kwishishini lamandla, lisebenzisa ngokupheleleyo uphando olubanzi, uyilo, ukuvelisa, kunye novavanyo. . Inkampani yethu inonxibelelwano olusondeleyo lwezemfundo kunye nentsebenziswano yobuchwephesha kunye namaziko ophando aziwayo kunye neenkampani zombane ngaphakathi nangaphandle. Sizimisele ukusebenza kunye nabasebenzisi ukuphucula umgangatho wamandla wegridi yamandla ngobuchwepheshe obuphambili kunye neemveliso ezikumgangatho ophezulu, kwaye sibe negalelo kugcino lwamandla, ukunciphisa ukusetyenziswa, kunye nemveliso yokhuseleko kumacandelo okuvelisa umbane, ukubonelela kunye nawokusebenzisa.

※ Iiyunithi zokuqalisa kunye nokubeka iliso ziyilwe ngokuhlukana kwesigaba esizimeleyo, kunye nesantya sokusebenza ngokukhawuleza kunye nokukwazi ukuchasana nokuphazamiseka;

※ Itekhnoloji yokufumanisa amandla asebenzayo esekwe kwithiyori yamandla asebenzayo ngoko nangoko;

※ Ulawulo lwe-voltage ecaleni kweDC;

※ Gqibezela imisebenzi yokukhusela;

Isekethe yomqhubi we-IGBT ozinikeleyo iqinisekisa ukuthembeka kwe-IGBT yokuqhawula i-high-frequency disconnection kunye nokulayisha ulwazi lwexesha langempela lokubeka iliso kwisistim yokubeka iliso ephezulu;

※ Iikhonkco zamakhonkco ziyilwe ngokuzifumanela amandla, ziqinisekisa ukuthembeka okuphezulu;

Uyilo lwemodyuli yesakhiwo sekhonkco ihlangabezana neemfuno zokuthembeka okuphezulu kwenkqubo kwaye kulula ukuyigcina;

※ Ukusetyenziswa kweentsimbi zobhedu ezipakishweyo zihlangabezana neemfuno ze-IGBT ezixhokonxayo ze-high-frequency triggering;

Ixesha lokuphendula linokufikelela kwi-5ms.

※ Inokubonelela ngembuyekezo yamandla eqhubekayo, egudileyo, eguquguqukayo, kunye nekhawulezayo esebenzayo ukusuka kwi-inductive ukuya kwi-capacitive;

※ Ukwazi ukusombulula ingxaki yokungalingani komthwalo;

※ Iimpawu zomthombo wangoku, isiphumo esisebenzayo ngoku esingachatshazelwanga ngumbane webhasi;

※ Ayinabungozi kwiiparamitha ze-impedance zenkqubo

① Inkqubo yokuvelisa amandla omoya

Ukungaqiniseki kwemithombo yomoya kunye neempawu zokusebenza zeeinjini zomoya ngokwazo zibangela ukuguquguquka kumandla emveliso yeeinjini zomoya, okukhokelela kwiingxaki ezifana negridi edityanisiweyo yombane wegridi engafanelekanga, ukushenxa kwamandla ombane, ukuguquguquka kwamandla ombane, kunye nokuqhwanyaza. Kwiifama zomthamo omkhulu womoya, imiba yozinzo isekhona xa iqhagamshelwe kwisixokelelwano, kunye neenkqubo zembuyekezo zamandla asebenzayo aguqukayo ziyafuneka; Kwelinye icala, ukuguquguquka kumbane wenkqubo kunokuba nefuthe ekusebenzeni okuqhelekileyo kwefeni. Ukusetyenziswa kwezixhobo zembuyekezo yamandla asebenzayo aguqukayo e-SVG kwiifama zomoya azinako ukuhlangabezana neemfuno zomba wamandla kuphela, ukuguquguquka kwamandla ombane, kunye nokuqhwanyaza kweenkqubo zokumanyanisa amandla omoya, kodwa zikwanciphisa impembelelo yokuphazamiseka kwenkqubo kwiiinjini zomoya.

② Eminye imithwalo enzima yemizi-mveliso efana neehosti zemigodi yamalahle

Eminye imithwalo enzima yemizi-mveliso efana neehosti zemigodi yamalahle iya kuba neempembelelo ezilandelayo kwigridi yombane ngexesha lokusebenza;

(1) Ukudala ukwehla kwamandla ombane kunye nokuguquguquka kwigridi yamandla;

(2) Umbane ophantsi;

(3) Isixhobo sothumelo siya kuvelisa i-harmonics enobungozi obuphezulu.

Ukufakela isixhobo se-SVG esiguqukayo sembuyekezo yamandla asebenzayo kunokusombulula ngokugqibeleleyo ezi ngxaki zingentla.

③ Iziko lombane le-arc

Njengomthwalo ongewona mgca uqhagamshelwe kwigridi yamandla, iifurnasi ze-arc zombane ziya kuba noluhlu lweziphumo ezibi kwigridi yamandla, ngakumbi kubandakanya:

(1) Ukudala ukungalingani okukhulu kwezigaba ezithathu kwigridi yamandla, okukhokelela kulandelelwano olubi lwangoku;

(2) Ukuvelisa i-harmonics ephezulu, phakathi kwayo kukho ukuhlalisana okuqhelekileyo kwe-2 kunye neyesine kunye ne-harmonics kunye ne-3, yesi-5, ye-7 ye-harmonics engaqhelekanga, ekhokelela ekugqwekeni kombane kube nzima ngakumbi;

(3) Kukho i-voltage enzima kakhulu;

(4) Into yamandla aphantsi.

Ukusetyenziswa kwesixhobo sembuyekezo samandla asebenzayo e-SVG anokusombulula ezi ngxaki zingasentla, ngokukhawuleza ukuhlawulela umbane webhasi ozinzileyo, ukuphucula imveliso, ukunciphisa ukuguquguquka kwamandla ombane kunye ne-flicker, kunye nomsebenzi wembuyekezo yokwahlulahlula kwesigaba unokuphelisa ukungalingani kwamanqanaba amathathu okubangelwa sisithando somlilo se-arc.

④ Ilitye lokusila

Impembelelo yamandla asebenzayo eveliswa yi-rolling mill iya kuba neempembelelo ezilandelayo kwigridi yamandla:

(1) Ukudala ukuhla kwamandla ombane kwisixokelelwano sombane, kwiimeko ezimandundu okubangela ukuba isixhobo sombane singasebenzi kakuhle kunye nokunciphisa ukusebenza kakuhle kwemveliso;

(2) Ukunciphisa into yamandla;

(3) Isixhobo sothumelo somthwalo siya kuvelisa i-harmonics eyingozi ephezulu, eya kubangela ukuphazamiseka okunzulu kombane wegridi. Ukufakela isixhobo se-SVG esiguqukayo sembuyekezo yamandla asebenzayo kunokusombulula ngokugqibeleleyo ezi ngxaki zingasentla, ukuzinzisa umbane webhasi, ukuphelisa ukuphazamiseka kwe-harmonic, kunye nokuphucula into yamandla.

⑤ Isitishi senkqubo yamandla (66/110kV)

Isixhobo sembuyekezo samandla aguqukayo e-SVG sinokuhlawulela ngokukhawuleza nangokuchanekileyo amandla asebenzayo kunye ne-capacitive. Ngelixa uzinzisa umbane webhasi kunye nokuphucula amandla ombane, iyisombulula ngokucokisekileyo nangokufanelekileyo ingxaki yokubuyela umva kwamandla asebenzayo. Xa uhlohla isixhobo esitsha se-SVG esisebenzayo sembuyekezo yamandla, ibhanki ekhoyo esisigxina ye-capacitor kunye ne-thyristor controlled reactor (TCR) ingasetyenziswa ngokupheleleyo ukuphumeza ezona ziphumo zintle notyalo-mali oluncinci, ibe yeyona ndlela isebenzayo yokuphucula umgangatho wobonelelo lwamandla kummandla. igridi yamandla.

⑥ Ukuhanjiswa kwamandla omgama omde

Ukufakwa kwezixhobo zembuyekezo yamandla asebenzayo e-SVG kwi-high-voltage, amandla aphezulu, kunye neentambo zokuhambisa amandla omde kunokuphucula kakhulu ukuhanjiswa kunye nokusebenza kokuhanjiswa kwenkqubo yamandla.