文章來源：國家(jia)電網公司 發布時間：2010-03-10
為(wei)有效緩(huan)解四川枯水期電(dian)力供應緊張和豐水期棄水損(sun)失問題，支(zhi)援(yuan)四川災區恢復重建(jian)，按照(zhao)國家(jia)電(dian)網(wang)公司(si)的統一部(bu)署，國家(jia)電(dian)網(wang)直流公司(si)全力加快西北(bei)－華中（四川）直流聯網(wang)工(gong)程建(jian)設步伐，力爭2009年底建(jian)成投運，較(jiao)原計劃工(gong)期提前四個月。
西(xi)(xi)北－華中(zhong)（四川(chuan)(chuan)）直(zhi)流聯網(wang)工(gong)(gong)程(cheng)是國(guo)(guo)家跨區(qu)(qu)電(dian)(dian)(dian)(dian)(dian)網(wang)建(jian)設重(zhong)點工(gong)(gong)程(cheng)，也(ye)是我(wo)國(guo)(guo)首個實現(xian)100％國(guo)(guo)產化(hua)的±500千伏(fu)輸(shu)電(dian)(dian)(dian)(dian)(dian)工(gong)(gong)程(cheng)，對于提(ti)高我(wo)國(guo)(guo)輸(shu)變電(dian)(dian)(dian)(dian)(dian)設備自主創新(xin)和制造能力具有重(zhong)要(yao)意義(yi)。工(gong)(gong)程(cheng)起(qi)點為(wei)陜西(xi)(xi)寶雞，落點為(wei)四川(chuan)(chuan)德陽，計(ji)劃新(xin)建(jian)±500千伏(fu)換流站兩座，直(zhi)流線路(lu)一條，全長(chang)約(yue)574公里(li)，途經四川(chuan)(chuan)、甘肅、陜西(xi)(xi)3省12個市(shi)縣，工(gong)(gong)程(cheng)額定輸(shu)送容量(liang)300萬(wan)千瓦，靜(jing)態投資(zi)約(yue)54億元(yuan)。工(gong)(gong)程(cheng)建(jian)成后，將(jiang)為(wei)四川(chuan)(chuan)災(zai)后重(zhong)建(jian)及經濟發展提(ti)供有力支持。枯(ku)水期(qi)，西(xi)(xi)北電(dian)(dian)(dian)(dian)(dian)網(wang)向四川(chuan)(chuan)電(dian)(dian)(dian)(dian)(dian)網(wang)輸(shu)送火電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)量(liang)，可極大地(di)緩解四川(chuan)(chuan)由于煤炭(tan)產量(liang)不足(zu)造成的缺電(dian)(dian)(dian)(dian)(dian)問題，并(bing)減(jian)輕西(xi)(xi)北地(di)區(qu)(qu)鐵(tie)路(lu)運(yun)輸(shu)壓力；豐水期(qi)，將(jiang)四川(chuan)(chuan)富余水電(dian)(dian)(dian)(dian)(dian)送至西(xi)(xi)北地(di)區(qu)(qu)，推動四川(chuan)(chuan)資(zi)源優(you)勢(shi)轉化(hua)為(wei)經濟優(you)勢(shi)。工(gong)(gong)程(cheng)在實現(xian)水電(dian)(dian)(dian)(dian)(dian)跨流域補償調節、水火電(dian)(dian)(dian)(dian)(dian)互補調節、減(jian)少電(dian)(dian)(dian)(dian)(dian)網(wang)備用容量(liang)，以及有效(xiao)提(ti)高電(dian)(dian)(dian)(dian)(dian)網(wang)抵御自然(ran)災(zai)害(hai)能力和可靠供電(dian)(dian)(dian)(dian)(dian)水平等(deng)方(fang)面，具有顯著(zhu)的經濟效(xiao)益和社(she)會效(xiao)益。
國家(jia)電網直(zhi)流(liu)公司積極組織各參(can)建(jian)方力量，克服施(shi)工(gong)條件艱(jian)苦、余震不斷(duan)，以及因地震造成的建(jian)筑(zhu)材料供應緊(jin)張、價格上漲(zhang)等不利因素，在確(que)保安(an)全、質量前提下(xia)，強化(hua)施(shi)工(gong)管理，加強設備制造協調，優化(hua)工(gong)期計劃，全面加快(kuai)工(gong)程建(jian)設進度。
截至3月7日，已完(wan)成換流站主控樓建筑(zhu)封(feng)頂，交流場、交流濾(lv)波(bo)器場構架吊裝等重要工程節點，工程建設進度總體順(shun)利。