Li-Transformer tse Ikhethileng bakeng sa HVDC Flex: Ho Nolofatsa Matla a Moea a Offshore a Hole-hole

Selelekela

Ha mapolasi a moya a lebopong a ntse a tsamaya hole le lebopong—ka nqane ho dikhilomitara tse 100 metsing a tebileng—phetiso ya AC ya setso e fihlella meeding ya yona ya botekgeniki. Dithapo tsa metsing a ka tlasa lewatle di sebetsa e le di-capacitor tse kgolo, di ja matla a arabelang mme di etsa hore phepelo ya eneji e sebetsang hantle e se kgonehe maetong a malelele. Mona ke moo theknoloji ya phetiso e feto-fetohang ya motlakase o otlolohileng wa motlakase o phahameng (HVDC) e bang bohlokwa, mme ka yona, sehlopha se setjha sa di-transformer tse ikgethang.

Sengoloa sena se hlahloba karolo ea li-transformer tsena phetisong ea matla a moea a lebōpong la leoatle le litlhoko tsa tekheniki tse li khethollang ho li-unit tse tloaelehileng.

Karolo ea Pele: Hobaneng HVDC e Flex bakeng sa Moea o Tebileng oa Leoatle?

Phephetso ea Bokhoni.Ha matla a AC a phalla ka har'a likhoele tsa metsing a ka tlas'a metsi, thapo ka boeona e sebetsa e le capacitor. Ka mor'a lik'hilomithara tse ka bang 70, matla a arabelang a sebelisoang ke thapo a ba maholo hoo matla a manyane a sebetsang a fihlang lebopong. Phetiso ea HVDC e felisa bothata bona—motlakase o tobileng ha o bake phello ea capacitance, e lumellang phetiso e sebetsang hantle ho feta lik'hilomithara tse makholo.

Melemo ea DC e Tenyetsehang.Ho fapana le HVDC e tloaelehileng, e itšetlehileng ka tšehetso e tsitsitseng ea gridi ea AC, HVDC e tenyetsehang (kapa "HVDC Flex") e sebelisa li-converter tsa mohloli oa motlakase tse ka laolang matla a sebetsang le a arabelang ka boikemelo. Sena se etsa hore e be ntle bakeng sa ho hokahanya mehloli e fetohang e ka nchafatsoang joalo ka moea o tsoang lebopong la leoatle, o se nang inertia e potolohang ea limela tsa motlakase tse tloaelehileng.

Karolo ea Bobeli: Ho Hlokahala Li-Transformer tse Ikhethileng

Mekhoa ea HVDC Flex e hloka mefuta e 'maloa ea li-transformer tse khethehileng, e 'ngoe le e 'ngoe e tobane le liphephetso tse ikhethang.

Bafetoleli ba Fetoleli.Tsena di hokahanya marangrang a pokello ya AC le di-valve tsa converter tsa DC. Bakeng sa ditshebediso tsa lewatle le tebileng, di tlameha ho sebetsana le kgatello ya AC le DC ka nako e le nngwe—e leng boemo bo behang ditlhoko tse matla hodima ditsamaiso tsa ho kenya mocheso. Maemo a motlakase a ntse a eketseha butle-butle; diporojeke tsa moraorao di fihlile ho ±500 kV, tse hlokang di-transformer tse kgonang ho mamella masimo a kopanetsweng a motlakase a AC le a DC.

Li-Transformer tsa Sethala sa Leoatle.Li kentsoe lipolatefomong tsa lebopong la leoatle, li-unit tsena li tlameha ho mamella maemo a feteletseng a tikoloho: ho bola ha spray ea letsoai, mongobo o phahameng, ho thothomela ho bakoang ke ts'ebetso ea maqhubu, le libaka tse koetsoeng. Teko ea spray ea letsoai bakeng sa li-transformer tsa lebopong la leoatle hangata e hloka lihora tse 1,440 - nako e habeli kapa hararo bakeng sa lisebelisoa tse tloaelehileng.

Litlhokahalo tsa Moralo o Bobebe.Boima ba thane e 'ngoe le e 'ngoe sethaleng sa leoatleng bo eketsa litšenyehelo tse kholo metheong le likepeng tsa ho kenya. Baenjiniere ba phehella meralo e menyenyane, e bobebe ntle le ho beha botšepehi kotsing. Mekhoa e mecha ea morao tjena e kenyelletsa litsamaiso tse ntlafalitsoeng tsa ho pholisa le thepa e tsoetseng pele ea ho futhumatsa e fokotsang boholo ba transformer ha e ntse e boloka ts'ebetso.

Karolo ea Boraro: Liphephetso tsa Tekheniki

Ho hokahanya ho kenya mocheso.Motsoako oa li-voltage tsa AC le DC ho li-transformer tsa converter o hlahisa kabo e rarahaneng ea masimo a motlakase. Litefiso tsa sebaka li ka bokellana thepa ea ho thibela mocheso tlas'a khatello ea DC, e leng se ka lebisang ho ntšeng ha motlakase ka karolo le ho hloleha. Mekhoa e tsoetseng pele ea ho etsa mohlala e sebelisang tlhahlobo ea likarolo tse lekanyelitsoeng e thusa baenjiniere ho rala litsamaiso tsa ho thibela mocheso tse laolang liphello tsena.

Ho Tiea ha Mekaniki.Li-transformer tsa mose ho maoatle li tlameha ho phela ka lipalangoang tsa leoatle, ho kenngoa maemong a thata, le ho thothomela ho sa khaotseng ka lilemo tse mashome. Meaho ea litanka tse matlafalitsoeng, litsamaiso tse ntlafalitsoeng tsa ho khomarela, le khetho e hlokolosi ea likarolo li netefatsa botšepehi ba mechini ho pholletsa le bophelo ba thepa.

Ho Pholisa Libakeng tse Koaletsoeng.Li-platform tsa leoatleng li fana ka sebaka se fokolang bakeng sa lisebelisoa tsa ho pholisa. Baqapi ba ntlafatsa ts'ebetso ea mocheso ka ho etsa mohlala o tsoetseng pele oa matla a mokelikeli, ho netefatsa hore li-transformer li ka sebetsa ka tekanyo e felletseng esita le libakeng tse chesang, tse koetsoeng.

Karolo ea Bone: Morero oa Bohlokoa

Morero oa moea o tsoang lebopong la leoatle oa Sehlekehleke sa Guangdong Yangjiang Sanshan o emela tsoelo-pele e kholo tšimong ena. E fumaneha lik'hilomithara tse fetang 100 ho tloha lebopong la Chaena, projeke ena e tla fana ka matla a hloekileng a fihlang ho 2,000 MW sebakeng sa Greater Bay sa Guangdong-Hong Kong-Macao, e sebeletsa malapa a ka bang limilione tse 2.4.

Botebong ba eona ho na le di-transformer tsa DC tse tenyetsehang tsa ±500 kV—diyuniti tse kgolo ka nngwe di boima ba ditone tse 380, tse ka bapiswang le dikoloi tsa bapalami tse 200. Di-transformer tsena di eketsa matla ho tloha ho 66 kV ho ya ho 500 kV AC pele di fetolelwa ho DC bakeng sa phetiso. Morero o hloka dilemo tse fetang leshome tsa dipatlisiso le ntshetsopele, ho hlola diphephetso tsa ho hanyetsa ho fafatswa ha letswai, moralo wa tshisinyeho ya lefatshe, le ntlafatso ya sebaka.

Karolo ea Bohlano: Litaelo tsa Nakong e Tlang

Ha moea o fokang lebopong o ntse o ata metsing a tebileng le ho feta, maemo a motlakase a ntse a eketseha. Meralo ya indasteri e supa ho 525 kV le di-voltage tse phahameng le ho feta tsa DC, tse hlokang di-transformer tse nang le bokgoni bo boholo ba ho kenya mocheso le matla a mangata.

Maiteko a ho lekanyetsa maemo le ona a ntse a tswela pele. Maemo a machaba a kang IEC 60076-16 a shebane ka ho khetheha le di-transformer bakeng sa ditshebediso tsa turbine ya moya, a fana ka tataiso mabapi le ditlhoko tsa teko le tshebetso bakeng sa diketso tsa lewatle.

Qetello

Li-transformer tse khethehileng bakeng sa HVDC Flex li nolofalletsa katoloso ea moea o lebōpong la leoatle metsing a tebileng moo phetiso ea AC e hlōlehang. Ha li kopanya litlhoko tse feteletseng tsa motlakase le maemo a thata a tikoloho, li-unit tsena li emela lehlakore la morao la boenjiniere ba transformer.

Bakeng sa litsebi tsa theko, ho utloisisa litlhoko tse ikhethang tsa lits'ebetso tsa HVDC tse kantle ho naha ho thusa ho totobatsa lisebelisoa tse loketseng le ho lekola bokhoni ba mofani. Ha matla a nchafatsoang a ntse a tsoela pele katoloso ea 'ona ea lefats'e ka bophara, li-transformer tsena tse ikhethileng li tla lula e le likarolo tsa bohlokoa tsa meralo ea motheo ea matla a hloekileng.