Ngokuthuthuka okusheshayo kwamandla amasha, iChina isibe yizwe elikhulu kunawo wonke ugesi ophehlwa ngamanzi, amandla omoya, ukukhiqizwa kwamandla elanga kanye nama-akhawunti avuselelekayo wamandla okwenyuka okuqhubekayo. Ukwenza la mafutha, amandla kagesi ahlanzekile angena ngezikhathi ezithile, ukuthuthukisa ubuchwepheshe bokuhambisa amandla kubalulekile. Lokhu kudinga imishini yokudlulisa amandla ethuthuke kakhulu.
ILiubei Converter Station eGuangxi yisiteshi esiguqula kuqala se-UHV multi-terminal nezimo emhlabeni. Kubuye kube yiprojekthi ye-DC eyi-hybrid yama-multi-terminal enezinga lamandla kagesi aphakeme kakhulu namandla amakhulu okudlulisa emhlabeni.
Isizukulwane esisha se-DC converter valve esiguquguqukayo sinejubane elisheshayo lokulawulwa kwamandla, elingabona isinxephezelo esisheshayo sokushaja namandla ehlanzekile eguquguqukayo, futhi siguqule amandla amabi futhi angaguquki abe yinto eguquguqukayo, okwenza kube namandla ahlanzekile Ngesikhathi esifanayo, inganciphisa isikhathi sokuxazulula inkinga kugridi ibe ngaphansi kwama-millisecond ayi-100.
Omunye wengqikithi ye-DC converter valve eguquguqukayo yimodyuli eguquguqukayo. Intengo yemodyuli eguquguqukayo ilingana naleyo yemoto enkulu. Ingacubungula amashumi ezinkulungwane zamaphoyinti wedatha kwinkulungwane eyodwa yesekhondi ukufeza ukulawulwa okuqondile kwamandla okudlulisa nokwenza ngcono ukulawula nokuvikela ukunemba kwegridi yamandla ezingeni le-microsecond。
Ivelufa yokuguquguqula ye-DC yokuqala ± 800kV ultra-high voltage DC converter:
Kunliulong DC Demonstration Project ± 800 KV Kunbei converter esiteshini sokuhlola ukukhanya：
I-TBEA yenza umsebenzi wokuthuthukisa imishini nokukhiqiza isiteshi sokuguqula i-Udongliu North Pole 1, esinamandla aphelele we-3GW, okubandakanya amahholo ama-valve amabili nemibhoshongo engu-24 yama-valve.
Enye ingxenye eyinhloko yikhadi lebhodi lokulawula, okungubuchopho be-valve eguquguqukayo yokuguqula i-DC. Kukhona amashumi ezinkulungwane zamadivayisi we-elekthronikhi ekhadini lebhodi elibonakala lijwayelekile, ngalinye linentambo yalo yokudlulisela, ekwazi ukufeza ukudluliswa kwemvamisa ephezulu kakhulu ye-Hertz engaphezu kwebhiliyoni elilodwa. yedatha elayishwe uhlelo lonke lokulawula i-valve ngaphakathi kokucwayiza kweso lomuntu lemizuzwana engu-0.2.
Lobu buchwepheshe ukuphakama okuyala kobuchwepheshe bokusetshenziswa kwamandla okusetshenziswa yizigebenga zamandla omhlaba njengamanje, futhi kunamazwe amathathu kuphela emhlabeni angabukhiqiza.
I-valve entsha eguquguqukayo yokuguqulela i-DC isilungele ukusebenza.izosetshenziswa kulayini omusha wokuhambisa we-DC oguquguqukayo, iphrojekthi ye-Kunliulong DC, ezophatha amahora kagesi ayizigidi eziyizinkulungwane ezingama-33 akhiqizwa minyaka yonke yiWudongde Hydropower Station, eyesikhombisa emhlabeni -isiteshi esikhulu samandla kagesi, amakhilomitha ayi-1,452 ezifundazweni zaseGuangdong naseGuxi.
Ubuchwepheshe bokudlulisa obuguquguqukayo obenzeka manje (i-VDC), obenza kube lula futhi kube lula ukulawulwa kwegridi, buthathwa njengobuchwepheshe obuyinhloko bokubhekana nokuxhuma okukhulu kwegridi yamandla avuselelekayo ngokuzayo.
Isikhathi Iposi: Jul-07-2021