文章來(lai)源：國家電網(wang)公司 發布時間(jian)：2009-12-16
12月(yue)15日，西北(bei)(bei)（寧東(dong)）—華(hua)北(bei)(bei)（山(shan)東(dong)）±660千(qian)伏直流(liu)輸電(dian)(dian)示范工(gong)(gong)(gong)程開工(gong)(gong)(gong)儀式在寧夏銀川、山(shan)東(dong)青島膠(jiao)州同時舉行。該工(gong)(gong)(gong)程是世界首個(ge)±660千(qian)伏電(dian)(dian)壓等(deng)級的直流(liu)輸電(dian)(dian)工(gong)(gong)(gong)程，也(ye)是國家“西電(dian)(dian)東(dong)送”重點(dian)項目之一。工(gong)(gong)(gong)程將在實現西北(bei)(bei)與華(hua)北(bei)(bei)電(dian)(dian)網聯網、西北(bei)(bei)黃河上游(you)水電(dian)(dian)及(ji)寧東(dong)火電(dian)(dian)打捆送往山(shan)東(dong)、進一步實現資源優(you)化配置(zhi)等(deng)方面(mian)發揮積極作用。
寧東(dong)—山東(dong)±660千(qian)(qian)伏(fu)直(zhi)流(liu)輸電(dian)工(gong)程(cheng)于12月8日獲(huo)得(de)國(guo)家發改委(wei)核準(zhun)。工(gong)程(cheng)西起寧夏銀川東(dong)換流(liu)站，東(dong)至山東(dong)青島(dao)換流(liu)站，線路經過寧夏、陜西、山西、河北、山東(dong)等五省（自治(zhi)區），線路長(chang)度為1335千(qian)(qian)米。工(gong)程(cheng)計劃(hua)于2010年建成(cheng)投運(yun)，總投資104億元(yuan)。
該(gai)工(gong)程(cheng)(cheng)是國家電網(wang)公司繼1000千伏(fu)特高(gao)壓交流試(shi)驗示(shi)范工(gong)程(cheng)(cheng)和(he)±800千伏(fu)特高(gao)壓直(zhi)(zhi)流工(gong)程(cheng)(cheng)后(hou)，在世界尖端輸電技術領域取得的(de)又一(yi)重大成果(guo)，也是國家電網(wang)公司認真貫徹落(luo)實黨中(zhong)央、國務(wu)院關于(yu)加(jia)強宏(hong)觀調(diao)控(kong)、拉動內需決策部署的(de)重要舉措，發展直(zhi)(zhi)流輸電技術的(de)一(yi)次技術創新(xin)。
據了解，寧(ning)東(dong)(dong)—山東(dong)(dong)±660千伏直流輸(shu)電(dian)(dian)工(gong)(gong)程具(ju)有(you)(you)顯著(zhu)的(de)經(jing)(jing)濟(ji)效(xiao)(xiao)益和社會(hui)效(xiao)(xiao)益。工(gong)(gong)程建成(cheng)投運(yun)后，可(ke)(ke)(ke)緩(huan)解山東(dong)(dong)省(sheng)電(dian)(dian)力(li)供應緊(jin)張、能源(yuan)(yuan)(yuan)資源(yuan)(yuan)(yuan)短缺的(de)壓(ya)力(li)，提(ti)(ti)高(gao)山東(dong)(dong)電(dian)(dian)網運(yun)行的(de)經(jing)(jing)濟(ji)性(xing)和可(ke)(ke)(ke)靠(kao)性(xing)，為山東(dong)(dong)經(jing)(jing)濟(ji)社會(hui)發展提(ti)(ti)供可(ke)(ke)(ke)靠(kao)電(dian)(dian)力(li)保(bao)障(zhang)；有(you)(you)利于(yu)緩(huan)解煤炭(tan)運(yun)輸(shu)壓(ya)力(li)，減少(shao)山東(dong)(dong)省(sheng)面臨(lin)的(de)環保(bao)壓(ya)力(li)，從整體上(shang)降低(di)一次能源(yuan)(yuan)(yuan)消(xiao)耗，促進(jin)資源(yuan)(yuan)(yuan)節(jie)約型(xing)和環境友好型(xing)社會(hui)建設(she)。據初步(bu)測算(suan)，山東(dong)(dong)電(dian)(dian)網接納寧(ning)東(dong)(dong)400萬千瓦電(dian)(dian)力(li)，每年可(ke)(ke)(ke)節(jie)約原煤1120萬噸(dun)，減少(shao)二(er)氧(yang)化(hua)(hua)硫排(pai)放5.7萬噸(dun)，全省(sheng)二(er)氧(yang)化(hua)(hua)硫排(pai)放量(liang)(liang)將降低(di)1.1％。同時，工(gong)(gong)程將使(shi)西(xi)北與周邊電(dian)(dian)網的(de)聯系更為緊(jin)密(mi)。西(xi)北地區(qu)經(jing)(jing)濟(ji)發展相對(dui)落后，但(dan)能源(yuan)(yuan)(yuan)資源(yuan)(yuan)(yuan)豐富，電(dian)(dian)力(li)外送(song)是其支柱(zhu)產(chan)業之一。該工(gong)(gong)程充分(fen)利用西(xi)北地區(qu)水電(dian)(dian)容量(liang)(liang)和豐富的(de)煤炭(tan)資源(yuan)(yuan)(yuan)，可(ke)(ke)(ke)顯著(zhu)提(ti)(ti)升(sheng)能源(yuan)(yuan)(yuan)資源(yuan)(yuan)(yuan)優化(hua)(hua)配(pei)置能力(li)，是貫徹落實“西(xi)部(bu)大開發”戰略、促進(jin)西(xi)部(bu)地區(qu)經(jing)(jing)濟(ji)發展的(de)有(you)(you)效(xiao)(xiao)方(fang)式。
該工(gong)(gong)程的建(jian)設(she)，也有利(li)于推(tui)動直(zhi)流(liu)(liu)輸(shu)電(dian)(dian)技術發展，促進我國直(zhi)流(liu)(liu)裝備制造技術升(sheng)級。據(ju)悉，工(gong)(gong)程將在直(zhi)流(liu)(liu)閥廳建(jian)設(she)規模、單(dan)(dan)個12脈動閥組(zu)的容量(liang)、跨(kua)接耐受(shou)電(dian)(dian)壓、晶閘管數(shu)量(liang)以(yi)及換流(liu)(liu)變壓器的單(dan)(dan)臺容量(liang)、運(yun)輸(shu)重量(liang)等方(fang)面創(chuang)造直(zhi)流(liu)(liu)輸(shu)電(dian)(dian)工(gong)(gong)程領域的世界紀錄。