文章(zhang)來源(yuan)：國家電網公司(si) 發布時間：2010-12-31
12月26日，由我國(guo)(guo)自主設計、自主建設的(de)向(xiang)家(jia)壩-上(shang)海±800千(qian)伏特(te)高(gao)(gao)壓(ya)(ya)直(zhi)流(liu)輸(shu)(shu)(shu)電(dian)(dian)(dian)(dian)(dian)示范工(gong)程(cheng)全(quan)(quan)線升壓(ya)(ya)至直(zhi)流(liu)800千(qian)伏，標(biao)志著目前世(shi)界(jie)上(shang)輸(shu)(shu)(shu)送(song)容量最(zui)(zui)大、送(song)電(dian)(dian)(dian)(dian)(dian)距(ju)離(li)最(zui)(zui)遠、技(ji)術水平最(zui)(zui)先(xian)進、電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)等級(ji)最(zui)(zui)高(gao)(gao)的(de)直(zhi)流(liu)輸(shu)(shu)(shu)電(dian)(dian)(dian)(dian)(dian)工(gong)程(cheng)全(quan)(quan)線帶電(dian)(dian)(dian)(dian)(dian)成(cheng)功。該工(gong)程(cheng)額(e)定電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)±800千(qian)伏、額(e)定電(dian)(dian)(dian)(dian)(dian)流(liu)4000安(an)培，輸(shu)(shu)(shu)送(song)功率可達700萬(wan)千(qian)瓦級(ji)，是引領世(shi)界(jie)直(zhi)流(liu)輸(shu)(shu)(shu)電(dian)(dian)(dian)(dian)(dian)技(ji)術發(fa)展(zhan)的(de)創新工(gong)程(cheng)，在世(shi)界(jie)上(shang)率先(xian)實(shi)現特(te)高(gao)(gao)壓(ya)(ya)直(zhi)流(liu)輸(shu)(shu)(shu)電(dian)(dian)(dian)(dian)(dian)的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)、電(dian)(dian)(dian)(dian)(dian)流(liu)雙(shuang)(shuang)提(ti)升、雙(shuang)(shuang)突破，代表世(shi)界(jie)直(zhi)流(liu)輸(shu)(shu)(shu)電(dian)(dian)(dian)(dian)(dian)技(ji)術的(de)最(zui)(zui)高(gao)(gao)水平，也標(biao)志著國(guo)(guo)家(jia)電(dian)(dian)(dian)(dian)(dian)網(wang)全(quan)(quan)面進入特(te)高(gao)(gao)壓(ya)(ya)交直(zhi)流(liu)混合電(dian)(dian)(dian)(dian)(dian)網(wang)時期。
該工程(cheng)西起四(si)川向家(jia)壩復龍換(huan)流(liu)站，東(dong)至上海(hai)(hai)奉賢換(huan)流(liu)站，全長(chang)約1907公里，途經(jing)8個省市，4次跨越長(chang)江，對于(yu)實現(xian)西南水(shui)電能源(yuan)基地(di)大(da)規模開發和(he)經(jing)濟高效送出，進一步促進我(wo)國(guo)清潔(jie)能源(yuan)快速發展，滿足東(dong)部地(di)區日(ri)益增長(chang)的(de)(de)負(fu)荷發展需要(yao)，改善能源(yuan)結構，促進節(jie)能減(jian)排，具有重(zhong)要(yao)意(yi)義(yi)和(he)深遠影響。通過該工程(cheng)每(mei)年可(ke)向上海(hai)(hai)輸(shu)送四(si)川清潔(jie)水(shui)電350億千瓦時，相當于(yu)目(mu)前上海(hai)(hai)市全年用電量(liang)的(de)(de)三(san)分之(zhi)一，比在上海(hai)(hai)直接建設火力發電廠，每(mei)年可(ke)節(jie)省原(yuan)煤(mei)1600萬噸，減(jian)排二氧化碳超過2600萬噸，節(jie)能減(jian)排意(yi)義(yi)重(zhong)大(da)。