Kubva pamaonero ehunyanzvi, kushandisa ±800 kV UHV DC transmission, pakati pemutsetse hapafanirwe kudonhedza poindi, izvo zvinogona kutumira simba rakawanda zvakananga kunzvimbo huru yekutakura; kana iri AC/DC parallel transmission, inogona kushandisa bilateral frequency modulation kudzivirira zvinobudirira oscillation yeregional low-frequency, uye kuvandudza muganho wekugadzikana kwenguva pfupi (dynamic) kwecross-section; uye kugadzirisa dambudziko rekupfuura short-circuit current ye large receiving end ye power grid. Kushandisa 1000kV AC transmission, pakati inogona kudonhedzwa ne grid function; kusimbisa grid kutsigira large-scale DC power transmission; kugadzirisa matambudziko e short-circuit current inodarika standard ye large receiving end grid uye low transmission capacity ye 500kV line, uye kugadzirisa chimiro che power grid.
Panyaya yesimba rekutumira magetsi uye kushanda zvakanaka, uchishandisa ±800 kV UHV DC transmission, kugadzikana kwesimba rekutumira magetsi kunoenderana ne effective short circuit ratio (ESCR) uye effective inertia constant (Hdc) yegrid pamugumo wekugamuchira magetsi, pamwe nechimiro chegrid pamugumo wekutumira magetsi. Kana tichitora 1000 kV AC transmission, simba rekutumira magetsi rinoenderana ne short-circuit capacity ye support point yega yega ye line uye daro re wire transmission (daro riri pakati pe drop points dze substations mbiri dziri pedyo); kugadzikana kwesimba rekutumira magetsi (synchronization capacity) kunoenderana nehukuru hwe power angle pa operating point (musiyano uri pakati pe power angles pamagumo maviri e line).
Kubva pamaonero enyaya huru dzehunyanzvi dzinoda kutariswa, kushandiswa kwe ±800 kV UHV DC transmission kunofanira kutarisa pa static reactive power balance uye dynamic reactive power backup uye voltage stability ye receiving terminal ye grid, uye kunofanira kutarisa pamatambudziko ekuchengetedza system voltage anokonzerwa nekukundikana panguva imwe chete kwe phase switching mu multi-drop DC feeder system. Kushandiswa kwe 1000 kV AC transmission kunofanira kutarisa matambudziko e AC system phase adjustment uye voltage regulation kana operation mode yachinjwa; kutarisa matambudziko akadai sekutamiswa kwesimba rakawanda muzvikamu zvisina kusimba pasi pemamiriro akakomba ekutadza; uye kutarisa njodzi dzakavanzika dzenjodzi dze blackout munzvimbo huru uye matanho adzo ekudzivirira.
Nguva yekutumira: Gumiguru-16-2023