Ka August 12, State Grid Corporation e phatlalalitse hore morero oa sefofane oa Jindongnan - Nanyang - Jingmen UHV AC le pontšo o fetile tlhahlobo ea kamohelo ea naha - e bolelang hore UHV ha e sa le "teko" le "ponts'o".Motlakase oa China o tla kena ka molao mehleng ea "ultra-high voltage", 'me tumello le kaho ea merero e latelang e lebelletsoe ho potlakisoa.
Ho ea ka morero oa kaho oa morero oa UHV o senotsoeng ke State Grid Corporation ka letsatsi le le leng, ka 2015, "Three Huas" (North, East le Central China) ho tla hahoa marang-rang a matla a UHV, ho theha "tse tharo tse otlolohileng, tse tharo tse rapameng le tse rapameng. leqhubu le le leng la selikalikoe”, le merero ea phetiso ea hona joale ea 11 UHV e tla phethoa.Ho ea ka morero, lichelete tsa UHV li tla fihla li-yuan tse limilione tse likete tse 270 lilemong tse hlano tse tlang, bahlahlobisisi ba boletse.
A palo ea machaba ea isang tekheniki maemo a
Ka la 6 Pherekhong 2009, projeke ea pontšo ea liteko tsa 1000 kV Jindong-Nanyang Jingmen UHV AC e kentsoe tšebetsong ea khoebo.Morero ona ke boemo bo phahameng ka ho fetisisa ba motlakase lefatšeng, boemo bo tsoetseng pele ka ho fetesisa ba tekheniki le projeke ea phetisetso ea matla a puisano e nang le litokelo tse felletseng tse ikemetseng tsa thepa ea mahlale.Hape ke projeke ea ho qala le projeke ea pele ea phetisetso ea motlakase o phahameng haholo e hahiloeng le ho kengoa tšebetsong naheng ea rona.
Ho ea ka motho ea amehang ea ikarabellang oa State Grid Corporation, 90% ea thepa ea morero e hlahisoa ka hare ho naha, ho bolelang hore Chaena e na le tsebo e feletseng ea theknoloji ea mantlha ea phetisetso ea UHV AC mme e na le bokhoni ba ho hlahisa lisebelisoa tse ngata tsa UHV AC. .
Ho feta moo, ka ts'ebetso ena ea projeke, State Grid Corporation e entse lipatlisiso le ho sisinya mokhoa o tloaelehileng oa thekenoloji ea phetiso ea UHV AC e nang le maemo a 77 mekhahlelong e 7 khetlo la pele lefatšeng.Tekanyetso e le 'ngoe ea naha e ntlafalitsoe, maemo a naha a 15 le maemo a 73 a likhoebo a fanoe, 'me litokelo tsa molao tse 431 li amohetsoe (237 li lumellotsoe).China e thehile boemo ba machaba bo etelletseng pele mafapheng a lipatlisiso tsa theknoloji ea phetiso ea UHV, tlhahiso ea lisebelisoa, moralo oa boenjiniere, kaho le ts'ebetso.
Selemo le halofo ka mor'a ts'ebetso e atlehileng ea morero oa pontšo ea phetisetso ea UHV AC, projeke ea pontšo ea phetisetso ea phetiso ea Xiangjiaba-Shanghai ±800 kV UHV DC e kentsoe tšebetsong ka la 8 Phupu selemong sena.Ho fihlela joale, naha ea rona e qala ho kena nakong e nyalisitsoeng ea ultra-high voltage AC le DC, 'me mosebetsi oa ho lokisetsa kaho ea marang-rang a phahameng a phahameng a se a loketse.
"Li-network tse tharo tse otlolohileng, tse tharo tse otlolohileng le tse le 'ngoe" li tla phethahala.
Moqolotsi oa litaba o utloisisa ho tsoa ho mokhatlo oa grid ea mmuso, k'hamphani ea "leshome le metso e 'meli ea lilemo tse hlano" morero oa "tse tharo tse otlolohileng le tse tharo tse otlolohileng le selikalikoe se le seng" e bua ka XiMeng, stake, Zhang Bei, setsi sa matla sa shaanxi se ka leboea ka nako e meraro ea longitudinal uhv. ac channel ho ea "China tse tharo" ebang ke mashala a leboea, metsi a ka boroa-bophirimela le motlakase ka litsela tse tharo tse hlabang tsa uhv ac ho ea leboea ho Chaena, bohareng ba Chaena le phetiso ea marang-rang ea Yangtze River Delta uhv ring network.“Three rapameng” ke Mengxi – Weifang, Jinzhong – Xuzhou, Ya 'an – southern Anhui litsela tse tharo tse rapameng tsa phetiso;"Leqhubu le le leng la lesale" ke Huainan - Nanjing - Taizhou - Suzhou - Shanghai - North Zhejiang - South Anhui - Huainan Yangtze River Delta UHV habeli marang-rang.
Sepheo sa State Grid Corporation ke ho haha marang-rang a matla a bohlale a nang le marang-rang a "Sanhua" UHV a lumellanang le motlakase e le setsi, Northeast UHV power grid le Northwest 750kV power grid e le qetello ea phetisetso, e hokahanyang metheo e meholo ea matla a mashala, metheo e meholo ea matla a metsi, e kholo. metheo ea matla a nyutlelie le metheo e meholo ea matla a ka nchafatsoang, le ho hokahanya ntlafatso ea likhoele tsa motlakase maemong ohle ka 2020.
Tlas'a moralo, matsete a UHV a tla fihla ho li-yuan tse limilione tse likete tse 270 lilemong tse hlano tse tlang, bahlahlobisisi ba boletse.Ena ke keketseho e imenneng ka makhetlo a 13 ho feta li-yuan tse libilione tse 20 tse tsetelitsoeng nakong ea Moralo oa Lilemo tse Hlano oa bo-11.Nako ya Moralo wa bo-12 wa Dilemo tse Hlano e tla ba mohato wa bohlokwa wa ntshetsopele ya keriti ya motlakase ya UHV ya China.
Matla a phetisetso a matla ho aha gridi e matla e bohlale
Kaho ea keriti ea motlakase ea UHV AC-DC ke karolo ea bohlokoa ea khokahanyo ea phetiso ea marang-rang a matla a bohlale, hape ke karolo ea bohlokoa ea kaho ea marang-rang a matla a bohlale.Ho bohlokoa haholo ho khothaletsa kaho ea marang-rang a matla a bohlale.
Ho hakanngoa hore ka 2020, setsi sa bophirimela sa matla a mashala se rera ho romela 234 milione ea matla a mashala libakeng tse bohareng le tse ka bochabela, moo 197 milione ea kW e tla romelloa ka marang-rang a UHV AC-DC.Matla a mashala a Shanxi le leboea la Shaanxi a fanoa ka UHV AC, matla a mashala a Mengxi, Ximeng le Ningdong a fanoa ka UHV AC-DC hybrid, 'me matla a mashala a Xinjiang le Eastern Mongolia a fanoa ka ho toba ho grid ea matla " China Leboea, China Bochabela le China Bohareng” ka UHV.
Ntle le matla a khale a mashala, UHV e tla boela e etse mosebetsi oa phetiso ea motlakase o fehloang ka metsi.Ka nako e ts'oanang, matla a moea a fetisoa ka mocha oa phetisetso ea kantle ea setsi sa matla a mashala 'me a fetisetsoa ho "Sanhua" keriti ea matla ka ho kopanya moea le mollo, o ka khonang ho lemoha ho kenngoa ha matla a moea ka bongata bo pharaletseng. bophirima le ho khothaletsa nts'etsopele le ts'ebeliso e kholo ea matla a moea le matla a mang a ka nchafatsoang.
Nako ea poso: Aug-20-2022