6-35kV High voltage Static var Generator

I-SVG (i-Static Var Generator) iyisinxephezelo samandla asebenzayo yesimanje esebenzisa umjikelezo wamanje wokushintsha isigaba sokuzihambela. Iwubuchwepheshe bakamuva emkhakheni wesinxephezelo samandla asebenzayo, owaziwa nangokuthi i-STATCOM (Isinxephezelo Sokuvumelanisa Esiqinile).

Idivayisi yesinxephezelo samandla asebenzayo we-SVG ekhiqizwa inkampani yethu inezinzuzo ngesivinini sokuphendula, amandla kagesi wegridi azinzile, ukulahleka kwesistimu okuncishisiwe, amandla okudlulisela akhuphukayo, umkhawulo wamandla kagesi wesikhashana othuthukisiwe, ama-harmonics ancishisiwe, kanye nokuncishiswa kwezinyawo.

Ukuthuthukiswa kwedivayisi yesinxephezelo samandla asebenzayo we-SVG kuncike emandleni aqinile enkampani yethu, futhi kusebenzisa ngokugcwele izinzuzo zobuchwepheshe obuthuthukile kanye nesipiliyoni sokukhiqiza senkampani yeqembu embonini yamandla, isebenzisa ngokugcwele ucwaningo oluphelele, ukuklama, ukukhiqiza, kanye namakhono okuhlola. . Inkampani yethu inokuxhumana okuseduze kwezemfundo nokubambisana kwezobuchwepheshe nezikhungo zocwaningo ezidumile nezinkampani zikagesi ngaphakathi nangaphandle. Sizimisele ukusebenzisana nabasebenzisi ukuthuthukisa ikhwalithi yamandla egridi kagesi ngobuchwepheshe obuthuthukisiwe nemikhiqizo yekhwalithi ephezulu, futhi sibambe iqhaza ekongiweni kwamandla, ukunciphisa ukusetshenziswa, kanye nokukhiqizwa kokuphepha emikhakheni yokuphehla ugesi, ukuphakelwa, kanye nokusetshenziswa.

※ Amayunithi okucupha nokuqapha aklanywe ngokuhlukaniswa kwesigaba esizimele, ngesivinini sokusebenza esisheshayo nekhono eliqinile lokulwa nokuphazamiseka;

※ Ubuchwepheshe bokubona amandla asebenzayo obususelwe kuthiyori yamandla asebenzayo asheshayo;

※ Ukulawulwa kwebhalansi ye-voltage ohlangothini lwe-DC;

※ Qedela imisebenzi yokuvikela;

Umjikelezo womshayeli we-IGBT ozinikele uqinisekisa ukwethembeka kwe-IGBT yokunqanyulwa kwe-high-frequency futhi ilayisha ulwazi lokuqapha isimo sesikhathi sangempela ohlelweni oluphezulu lokuqapha;

※ Izixhumanisi zamaketango zenzelwe ukuzivuna amandla, okuqinisekisa ukwethembeka okuphezulu;

Idizayini ye-modular yesakhiwo seketango ihlangabezana nezidingo zokuthembeka okuphezulu kwesistimu futhi kulula ukuyigcina;

※ Ukusetshenziswa kwemigoqo yethusi estakiwe kuhlangabezana nezidingo ze-IGBT yokuqalisa imvamisa ephezulu;

Isikhathi sokuphendula singafinyelela ku-5ms.

※ Inganikeza isinxephezelo samandla aqhubekayo, abushelelezi, ashukumisayo, futhi asheshayo ukusuka ku-inductive kuya ku-capacitive;

※ Ukwazi ukuxazulula inkinga yokungalingani komthwalo;

※ Izici zamanje zomthombo, okukhiphayo okusebenzayo okungathinteki amandla kagesi webhasi;

※ Ayizweli kumapharamitha we-impedance wesistimu

① Isistimu yokukhiqiza amandla omoya

Ukungaqiniseki kwezinsiza zomoya nezici zokusebenza zezinjini zomoya ngokwazo kubangela ukuguquguquka kwamandla okukhiphayo ezinjini zomoya, okuholela ezinkingeni ezifana nesici samandla axhunywe kwigridi engafanelekile, ukuchezuka kukagesi, ukuguquguquka kwamandla kagesi, kanye nokucwayiza. Emapulazini amakhulu omoya, izinkinga zokuzinza zisekhona uma zixhunywe ohlelweni, kanye nezinhlelo zokunxephezela amandla asebenzayo aguqukayo ziyadingeka; Ngakolunye uhlangothi, ukushintshashintsha kwe-voltage yesistimu nakho kungaba nomthelela ekusebenzeni okuvamile kwefeni. Ukusetshenziswa kwamadivayisi esinxephezelo samandla asebenzayo asebenzayo e-SVG emapulazini omoya akukwazi nje ukuhlangabezana nezimfuneko zesici samandla, ukushintshashintsha kwamandla kagesi, nokucwayiza kwamasistimu okuhlanganiswa kwamandla omoya, kodwa futhi kunciphise umthelela wokuphazamiseka kwesistimu kumaturbine omoya.

② Eminye imithwalo esindayo yezimboni efana nezinyusi zemayini yamalahle

Eminye imithwalo esindayo yezimboni efana nezixhumi zemayini yamalahle izoba nomthelela olandelayo kugridi kagesi ngesikhathi sokusebenza;

(1) Ukubangela ukwehla kwamandla kagesi kanye nokushintshashintsha kwegridi yamandla;

(2) Isici samandla aphansi;

(3) Idivayisi yokudlulisa izokhiqiza ama-harmonics ayingozi aphezulu.

Ukufaka idivayisi yesinxephezelo samandla asebenzayo asebenzayo e-SVG kungaxazulula ngokuphelele izinkinga ezingenhla.

③ Isithando somlilo sikagesi

Njengomthwalo ongewona umugqa oxhunywe kugridi yamandla, amafurnace kagesi azoba nochungechunge lwemiphumela emibi kugridi yamandla, ikakhulukazi okuhlanganisa:

(1) Ukubangela ukungalingani okukhulu kwezigaba ezintathu kugridi yamandla, okuholela ekulandelaneni okungalungile kwamandla;

(2) Khiqiza ama-harmonics aphezulu, phakathi kwawo kukhona ukuhlalisana okuvamile kwe-2nd kanye ne-4 ngisho ne-harmonics kanye ne-3rd, 5th, i-7th odd harmonics, okuholela ekuhlanekeni kwe-voltage ibe yinkimbinkimbi kakhulu;

(3) Kukhona i-voltage enzima kakhulu;

(4) Isici samandla aphansi.

Ukusetshenziswa kwedivayisi yesinxephezelo samandla asebenzayo e-SVG ashukumisayo kungaxazulula izinkinga ezingenhla, kunxephezele ngokushesha ugesi webhasi ozinzile, kuthuthukise ukukhiqiza, kunciphise ukushintshashintsha kwamandla kagesi kanye nokucwayiza, futhi umsebenzi wokunxeshezelwa ngokuhlukaniswa kwesigaba ungaqeda ukungalingani kwezigaba ezintathu okubangelwa isithando somlilo se-arc.

④ Umshini wokugaya

Umthelela wamandla asebenzayo okhiqizwa umshini wokugaya uzoba nomthelela olandelayo kugridi yamandla:

(1) Ukubangela ukushintshashintsha kwamandla kagesi kugridi yamandla, ezimweni ezimbi kakhulu okubangela ukungasebenzi kahle kwezinto zikagesi kanye nokunciphisa ukusebenza kahle kokukhiqiza;

(2) Ukunciphisa isici samandla;

(3) Idivayisi yokudlulisa umthwalo izokhiqiza ama-harmonics ayingozi aphezulu, okuzodala ukuhlanekezela okukhulu kwe-voltage yegridi. Ukufaka idivayisi yesinxephezelo samandla asebenzayo asebenzayo e-SVG kungaxazulula ngokuphelele izinkinga ezingenhla, kusimamise ugesi webhasi, kuqede ukuphazamiseka kwe-harmonic, futhi kuthuthukise isici samandla.

⑤ Isiteshi samandla samandla (66/110kV)

Idivayisi yesinxephezelo samandla asebenzayo e-SVG ashintshashintshayo inganxephezela ngokushesha nangokunembile amandla asebenzayo kanye ne-inductive. Ngenkathi uzinzisa ugesi webhasi futhi uthuthukisa isici samandla, ixazulula kahle futhi ngokushelelayo inkinga yokubuyela emuva kwamandla asebenzayo. Lapho ufaka idivayisi entsha yesinxephezelo samandla asebenzayo asebenzayo e-SVG, ibhange elikhona le-capacitor elikhona kanye ne-thyristor controlled reactor (TCR) ingasetshenziswa ngokugcwele ukuze kuzuzwe imiphumela engcono kakhulu ngokutshalwa kwezimali okuncane, ibe indlela ephumelela kakhulu yokuthuthukisa ikhwalithi yokuphakelwa kwamandla kwesifunda. igridi yamandla.

⑥ Ukudluliselwa kwamandla ebangeni elide

Ukufakwa kwamadivayisi esinxephezelo samandla asebenzayo e-SVG ashukumisayo kumalayini wokudlulisa amandla anamandla amakhulu, amandla aphezulu, kanye nebanga elide kungathuthukisa kakhulu ukusebenza kokudlulisela nokusabalalisa kwesistimu yamandla.