Cov neeg sau xov xwm tau kawm los ntawm Lub Xeev Grid Shanxi Lub Tuam Txhab Hluav Taws Xob Hluav Taws Xob thaum Lub Peb Hlis 4 tias txij li nws tau muab tso rau hauv kev ua haujlwm thaum Lub Rau Hli 30, 2017, ± 800 kV Yanmenguan-Huaian UHV DC Transmission Project (tom qab no hu ua "Yanhuai DC") tau tshaj qhov cumulative fais fab kis txwv. 200 billion kilowatt teev, sib npaug rau kwv yees li 70 lab tons ntawm thermal thee, txo cov pa roj carbon dioxide emissions los ntawm 196 lab tons. Cov khoom tseem ceeb ntawm txoj haujlwm no suav nrog cov khoom siv xws li cov khoom siv hloov pauv, cais cov hloov pauv, lub tshuab nqus tsev nqus hluav taws xob, hluav taws xob ntes, tso tawm fuses thiab hloov pauv, uas ua ke kom muaj kev nyab xeeb thiab ruaj khov ntawm lub zog.
± 800 kV Yanmenguan-Huai'an UHV DC kis tau tus mob kab yog ib qho tseem ceeb channel rau Tuam Tshoj "West-to-East Fais Fab Kis" thiab "North-to-South Fais Fab Kis". Nws tseem yog qhov loj tshaj plaws ntawm lub zog xa hluav taws xob rau Jin Hluav Taws Xob Hluav Taws Xob "mus rau sab qab teb ntawm tus dej Yangtze". Yanmenguan converter chaw nres tsheb yog qhov pib ntawm txoj haujlwm xa hluav taws xob. Lub chaw nres tsheb tau nruab nrog cov khoom siv qib siab hloov pauv thiab cov hloov pauv cais kom ntseeg tau tias muaj kev nyab xeeb thiab hloov tau yooj yim ntawm kev xa tawm tam sim no. Raws li lub Ob Hlis 28 xyoo no, nws tau ua haujlwm nyab xeeb thiab ruaj khov rau 2,434 hnub. Lub zog thee thiab cua zog nyob rau sab qaum teb Shanxi tau hloov pauv los ntawm kev hloov tam sim no mus rau tam sim no ncaj qha. Tom qab ntau tshaj 1,{10}} mais ntawm kab, lawv tau nruab nrog lub tshuab nqus tsev vacuum breakers, xob laim ntes, tso tawm fuses thiab lwm yam khoom siv los xyuas kom muaj kev ruaj ntseg ntawm lub zog thiab kev ua haujlwm nyab xeeb ntawm daim phiaj hluav taws xob. Thaum kawg, thauj mus rau Jiangsu.
Raws li tus neeg saib xyuas ntawm Lub Xeev Grid Shanxi Hluav Taws Xob Lub Tuam Txhab, Yanhuai DC tau dhau los ua cov channel tseem ceeb rau "Jinxi fais fab kis tau tus mob", suav txog li 50% ntawm Shanxi cov khoom xa tawm sab nraud. Hauv cov txheej txheem no, transformers, raws li cov cuab yeej tseem ceeb, ua lub luag haujlwm tseem ceeb. Lawv zoo hloov voltage thiab ua tau raws li qhov xav tau ntawm lub zog ntawm cov cheeb tsam sib txawv. Thaum lub caij ntuj sov (lub caij ntuj no) thiab huab cua huab cua, kev ua haujlwm loj ntawm Yanhuai DC tau dhau los ua tus qauv. Hauv xyoo 2023, kev xa mus rau lub caij ntuj sov tau nce 20.5% xyoo-rau-xyoo, thiab kev sib kis lub caij ntuj no nce 18.9% xyoo-rau-xyoo, ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj hluav taws xob thiab tib neeg txoj sia nyob.
Kev ua tiav ntawm 200 billion kilowatt teev yog sib cais los ntawm kev siv zog ntawm Yanmenguan converter chaw nres tsheb ua haujlwm thiab cov neeg ua haujlwm tu. Txij li thaum nws tau muab tso rau hauv kev ua haujlwm hauv xyoo 2017, Lub Xeev Grid Shanxi Ultra-High Voltage Substation Company, uas yog lub luag haujlwm rau lub chaw nres tsheb, tau nruj me ntsis siv lub luag haujlwm ntawm kev ruaj ntseg, ua kom nrawm rau kev tsim kho cov chaw nres tsheb digital, txhawb nqa "Yanmen Rupan" kab lis kev cai kev nyab xeeb. , thiab tau siv cov kev tshuaj xyuas nruj me ntsis ntawm cov khoom hloov pauv, cais cov hloov pauv, thiab lub tshuab nqus tsev vacuum. Peb tau ua tib zoo saib xyuas thiab tswj cov cuab yeej xws li ntes, tso tawm fuses thiab hloov pauv, ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov khoom siv no. Cov kev siv zog no tsis yog tsuas yog pab kev siv lub zog huv xws li cua fais fab thiab photovoltaics thiab txhawb kev hloov pauv thiab kev loj hlob ntawm Shanxi cov peev txheej kev lag luam, tab sis kuj tseem tiv thaiv qhov kev thov loj hlob ntawm hluav taws xob hauv East China.