Siteshoni yoyamba padziko lonse ya UHV Multi-terminal Flexible DC Converter yamangidwa!

Chifukwa cha kukula kwamphamvu zatsopano mwachangu, dziko la China lakhala dziko lalikulu kwambiri lamagetsi opangidwa ndi madzi, mphamvu ya mphepo, mphamvu ya dzuwa, ndi mphamvu zongowonjezwdwanso zomwe zikuchititsa kuti pakhale kuwonjezeka kosalekeza. Kuti mphamvu zamagetsi zosasinthasinthazi komanso zoyera nthawi ndi nthawi, kukweza ukadaulo wotumizira mphamvu ndikofunikira. Izi zimafuna zida zapamwamba kwambiri zotumizira mphamvu.

Liubei Converter Station ku Guangxi ndi siteshoni yoyamba ya UHV multi-terminal flexible DC converter padziko lonse lapansi. Ndi pulojekiti ya multi-terminal hybrid DC yokhala ndi voltage yapamwamba kwambiri komanso mphamvu yayikulu kwambiri yotumizira magiya padziko lonse lapansi.

Mbadwo watsopano wa valavu yosinthira ya DC yosinthasintha uli ndi liwiro lamphamvu lowongolera mwachangu, lomwe limatha kubweza mwachangu mphamvu yoyera yosinthasintha komanso mphamvu, ndikusintha mphamvu yolimba komanso yosasinthika kukhala yosinthasintha, zomwe zimapangitsa kuti mphamvu yoyera ilumikizidwe ku gridi. Nthawi yomweyo, imatha kuchepetsa nthawi yothetsa vuto la gridi kukhala yochepera ma millisecond 100.

Chimodzi mwa zinthu zofunika kwambiri pa valavu yosinthira ya DC yosinthasintha ndi module yosinthasintha. Mtengo wa module yosinthasintha ndi wofanana ndi wa galimoto yayikulu. Imatha kukonza ma point zikwizikwi a data mu chikwi chimodzi cha sekondi kuti ikwaniritse kuwongolera kolondola kwa mphamvu yotumizira ndikukweza kulondola kwa kuwongolera ndi kuteteza gridi yamagetsi kufika pamlingo wa microsecond.。

Valavu yoyamba padziko lonse ya ±800kV yosinthasintha kwambiri ya DC converter:

Pulojekiti Yowonetsera ya Kunliulong DC ±800 KV Kunbei yosinthira magetsi：

TBEA ikugwira ntchito yopanga ndi kupanga zida za Udongliu North Pole 1 converter station, yokhala ndi mphamvu ya 3GW yonse, yokhala ndi zipinda ziwiri za valve ndi nsanja 24 za valve.
Gawo lina lalikulu ndi khadi lowongolera, lomwe ndi ubongo wa valavu yosinthira ya DC yosinthasintha. Pali zida zamagetsi zikwizikwi pa khadi la bolodi lomwe limawoneka ngati lachizolowezi, lililonse lili ndi chingwe chake chotumizira, chomwe chimatha kutumiza ma Hertz opitilira 1 biliyoni pafupipafupi. Mphamvu yayikulu komanso yofulumira yogwiritsira ntchito deta yotereyi ndi yofanana ndi nthawi 8,000 za deta yomwe imakwezedwa ndi makina onse owongolera ma valve mkati mwa nthawi yochepa ya diso la munthu ya masekondi 0.2.

Ukadaulo uwu ndi ukadaulo wapamwamba kwambiri wogwiritsa ntchito mphamvu womwe makampani amphamvu padziko lonse lapansi akugwiritsa ntchito pakadali pano, ndipo pali mayiko atatu okha padziko lonse omwe angathe kuupanga.

Valavu yatsopano yosinthira magetsi ya DC yosinthasintha yakonzeka kugwiritsidwa ntchito. Idzagwiritsidwa ntchito mu chingwe chatsopano chosinthira magetsi cha DC, pulojekiti ya Kunliulong DC, yomwe idzanyamula magetsi okwana ma kilowatt-hours 33 biliyoni omwe amapangidwa pachaka ndi Wudongde Hydropower Station, siteshoni yachisanu ndi chiwiri yayikulu kwambiri padziko lonse lapansi, yomwe ili pamtunda wa makilomita 1,452 kupita ku madera a Guangdong ndi Guangxi.

Ukadaulo wotumizira mphamvu zamagetsi wosinthasintha (VDC), womwe umalola kuti magetsi aziyenda mofulumira komanso mosinthasintha, umaonedwa kuti ndi ukadaulo wofunikira kwambiri polimbana ndi kulumikizana kwakukulu kwa magetsi ndi mphamvu zongowonjezwdwanso mtsogolo.