Ngophuhliso olukhawulezileyo lwamandla amatsha, iChina yaba lelona lizwe likhulu lokuhambisa umbane, amandla omoya, ukuveliswa kwamandla elanga, kunye neakhawunti yamandla ahlaziyekayo ngokonyuka okuqhubekayo. Ukwenza ezi zinto zingazinzanga, amandla ombane acocekileyo acocekileyo, ukuphucula ubuchwephesha bokuhambisa umbane kubalulekile. Oku kufuna izixhobo zokuhambisa amandla eziphambili.
Isikhululo sokuguqula iLiubei eGuangxi sisikhululo sokuguqula i-UHV esinee-multi-terminal eziguquguqukayo emhlabeni. Ikwayiprojekti ye-DC ye-hybrid ye-multi-terminal enelonaqondo liphezulu levolthi kunye nelona gunya likhulu lokuhambisa kwihlabathi.
Isizukulwana esitsha seValve esiguqulayo esiguqukayo sinesantya esikhawulezayo solawulo lwamandla, esinokuthi siqonde imbuyekezo ekhawulezayo yokutshintsha kwamandla acocekileyo kunye namandla, kwaye sitshintshe imeko yangoku enoburharha nengathambekiyo ibe yeyokuguquguquka, nto leyo eyenza ukuba amandla acoceke Ngexesha elifanayo, inokunciphisa ixesha lokujongana neengxaki kwi-grid ukuya ngaphantsi kwe-100 milliseconds.
Esinye sezibophelelo zesiguquli seVV esiguquliweyo sisimo esiguqukayo. Ixabiso lemodyuli eguquguqukayo lilingana nemoto ephezulu. Inokuqhubekekisa amashumi amawaka amanqaku edatha kwiliwaka lesibini ukufezekisa ulawulo oluchanekileyo lwamandla okuhambisa kunye nokuphucula ulawulo kunye nokukhuselwa kokuchaneka kwigridi yamandla kwinqanaba le-microsecond。
Ihlabathi lokuqala ± 800kV ombane aphezulu-aphezulu eguquguqukayo ombane esiguqulayo seValve:
IProjekthi yokubonisa yaseKunliulong DC ± 800 KV Isikhululo sokuguqula i-Kunbei sovavanyo lokukhanya：
I-TBEA yenza umsebenzi wophuhliso lwezixhobo kunye nemveliso yesikhululo sokuguqula i-Udongliu North Pole 1, esinamandla apheleleyo e-3GW, ebandakanya iiholo zevalve ezi-2 kunye neenqaba ezingama-24.
Elinye icandelo eliphambili yikhadi lebhodi yolawulo, eyingqondo yevalufa yokuguqula iDC. Kukho amashumi amawaka ezixhobo zombane kwikhadi lebhodi elibonakala liqhelekile, nganye nganye inendlela yayo yokuhambisa, ekwaziyo ukufikelela usasazo oluphezulu kakhulu lweHertz engaphezulu kwe-1 yezigidigidi. yedatha efakwe yinkqubo yonke yolawulo lwevalvu ngaphakathi kokuqhwanyaza kweliso lomntu kwimizuzwana eyi-0.2.
Obu buchwephesha kukuphakama kokuyalela ubuchwephesha bokusetyenziswa kwamandla athi amandla ehlabathi abambe ngoku, kwaye kukho kuphela amazwe amathathu emhlabeni anokuyenza.
Ivalve entsha eguquguqukayo ye-DC ilungele ukusebenza.Iza kusetyenziswa kumatshini wokuhambisa ombane we-DC oguqukayo, iprojekthi ye-Kunliulong DC, eya kuthi ithwale iiyure ezingama-33 ezigidi zeekhilowathi zombane eziveliswa minyaka le sisikhululo seWudongde Hydropower Station, isixhenxe sehlabathi isikhululo samandla ombane esikhulu, iikhilomitha ezili-1,452 ukuya kumaphondo eGuangdong naseGuxi.
Itekhnoloji yokuhambisa ngokuthe ngqo ye-Flexible ngqo (VDC), eyenza ukuba kube lula kwaye kube lula ukulawulwa kwegridi, ithathwa njengeyona teknoloji iphambili yokujongana nonxibelelwano olukhulu lwegridi yamandla avuselelekayo kwixa elizayo.
Ixesha Post: Jul-07-2021