文章來源：國家電網公司 發布(bu)時(shi)間(jian)：2010-03-10
為有效緩(huan)解(jie)四川枯水期(qi)電(dian)力供應緊張和豐水期(qi)棄(qi)水損失問題，支援四川災區恢(hui)復重建，按照國家電(dian)網公司(si)的統一部署(shu)，國家電(dian)網直流(liu)公司(si)全力加快西北－華中（四川）直流(liu)聯網工(gong)程建設(she)步(bu)伐(fa)，力爭(zheng)2009年底建成投運，較原計劃工(gong)期(qi)提前四個月。
西(xi)(xi)(xi)北(bei)－華中（四川(chuan)）直流聯(lian)網(wang)工程(cheng)(cheng)是國家跨區(qu)電(dian)(dian)(dian)(dian)網(wang)建(jian)設(she)重(zhong)點工程(cheng)(cheng)，也是我國首(shou)個實現100％國產化(hua)的(de)±500千伏輸(shu)電(dian)(dian)(dian)(dian)工程(cheng)(cheng)，對于提高我國輸(shu)變(bian)電(dian)(dian)(dian)(dian)設(she)備自主創新和(he)制造能力(li)具(ju)有重(zhong)要意(yi)義。工程(cheng)(cheng)起點為(wei)陜西(xi)(xi)(xi)寶雞，落點為(wei)四川(chuan)德陽，計劃(hua)新建(jian)±500千伏換流站(zhan)兩座，直流線(xian)路(lu)一(yi)條，全長(chang)約(yue)574公(gong)里，途經四川(chuan)、甘肅、陜西(xi)(xi)(xi)3省12個市縣(xian)，工程(cheng)(cheng)額定輸(shu)送(song)容量300萬千瓦，靜(jing)態(tai)投資(zi)約(yue)54億元。工程(cheng)(cheng)建(jian)成(cheng)后，將為(wei)四川(chuan)災(zai)(zai)后重(zhong)建(jian)及經濟發展提供(gong)有力(li)支持。枯水期，西(xi)(xi)(xi)北(bei)電(dian)(dian)(dian)(dian)網(wang)向四川(chuan)電(dian)(dian)(dian)(dian)網(wang)輸(shu)送(song)火(huo)(huo)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)量，可極(ji)大地(di)緩解四川(chuan)由于煤炭產量不足造成(cheng)的(de)缺電(dian)(dian)(dian)(dian)問題，并減(jian)(jian)輕西(xi)(xi)(xi)北(bei)地(di)區(qu)鐵路(lu)運輸(shu)壓(ya)力(li)；豐水期，將四川(chuan)富(fu)余水電(dian)(dian)(dian)(dian)送(song)至西(xi)(xi)(xi)北(bei)地(di)區(qu)，推動四川(chuan)資(zi)源優勢轉化(hua)為(wei)經濟優勢。工程(cheng)(cheng)在實現水電(dian)(dian)(dian)(dian)跨流域補償調節、水火(huo)(huo)電(dian)(dian)(dian)(dian)互補調節、減(jian)(jian)少電(dian)(dian)(dian)(dian)網(wang)備用容量，以及有效提高電(dian)(dian)(dian)(dian)網(wang)抵(di)御自然災(zai)(zai)害能力(li)和(he)可靠供(gong)電(dian)(dian)(dian)(dian)水平等方面，具(ju)有顯著(zhu)的(de)經濟效益(yi)(yi)和(he)社(she)會效益(yi)(yi)。
國家電網直流公司積極(ji)組織各參建方力(li)量，克服(fu)施(shi)工(gong)條件(jian)艱苦、余(yu)震不斷(duan)，以及因地震造成(cheng)的建筑材料(liao)供(gong)應緊張、價格(ge)上(shang)漲(zhang)等不利因素，在確(que)保安全、質量前提下，強(qiang)化施(shi)工(gong)管理，加(jia)強(qiang)設備(bei)制造協調，優化工(gong)期計劃，全面加(jia)快工(gong)程建設進(jin)度。
截至(zhi)3月7日(ri)，已完成換流站主控樓建筑封頂，交(jiao)流場、交(jiao)流濾波器場構架吊裝等重要工(gong)程節點，工(gong)程建設進度總(zong)體順利。