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12月17日，世界上電(dian)壓(ya)等級(ji)最(zui)高、輸送容量最(zui)大的真雙極柔(rou)(rou)(rou)性直(zhi)流(liu)輸電(dian)工(gong)程(cheng)，廈門±320千伏柔(rou)(rou)(rou)性直(zhi)流(liu)輸電(dian)科技示(shi)范工(gong)程(cheng)正式投運(yun)，標志著(zhu)我國全(quan)面掌(zhang)握了高壓(ya)大容量柔(rou)(rou)(rou)性直(zhi)流(liu)輸電(dian)關鍵(jian)技術和工(gong)程(cheng)成套能力，實現了柔(rou)(rou)(rou)性直(zhi)流(liu)輸電(dian)技術領域的國際引領。

廈門柔(rou)(rou)性直流(liu)(liu)工(gong)程是(shi)極(ji)具創新引(yin)領性的系(xi)統工(gong)程。該工(gong)程是(shi)在浙江舟(zhou)山±200千(qian)伏柔(rou)(rou)性直流(liu)(liu)工(gong)程的應(ying)用基礎上，將電壓等級首次提升(sheng)至(zhi)(zhi)±320千(qian)伏，從(cong)偽雙極(ji)提升(sheng)至(zhi)(zhi)真雙極(ji)接(jie)(jie)線(xian)。工(gong)程于2014年7月21日開工(gong)建(jian)設(she)，輸送容量100萬千(qian)瓦，新建(jian)島(dao)外(wai)浦(pu)園(yuan)、鷺島(dao)兩座(zuo)換流(liu)(liu)站，采(cai)用1800平方毫米大截面絕緣直流(liu)(liu)電纜(lan)敷設(she)，通過廈門翔(xiang)安(an)海(hai)底(di)遂(sui)道與兩座(zuo)換流(liu)(liu)站連接(jie)(jie)。

柔(rou)(rou)性(xing)直(zhi)流(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)電(dian)(dian)(dian)是(shi)以電(dian)(dian)(dian)壓(ya)源換流(liu)(liu)(liu)(liu)(liu)器(qi)（VSC）為核心(xin)的(de)(de)新一(yi)代直(zhi)流(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)電(dian)(dian)(dian)技術，采用最先進的(de)(de)電(dian)(dian)(dian)壓(ya)源型換流(liu)(liu)(liu)(liu)(liu)器(qi)和(he)全控(kong)(kong)器(qi)件（IGBT），可在傳(chuan)輸(shu)(shu)電(dian)(dian)(dian)能的(de)(de)同(tong)時，靈(ling)活調節與之相連的(de)(de)交流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)網電(dian)(dian)(dian)壓(ya)，具有(you)可控(kong)(kong)性(xing)好、運行方式(shi)靈(ling)活、適用場合(he)多等顯著優勢。通俗地講(jiang)，柔(rou)(rou)性(xing)直(zhi)流(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)電(dian)(dian)(dian)是(shi)一(yi)種完(wan)全可控(kong)(kong)的(de)(de)輸(shu)(shu)電(dian)(dian)(dian)方式(shi)，相當于在電(dian)(dian)(dian)力系統中接入一(yi)個完(wan)全可控(kong)(kong)的(de)(de)“水(shui)泵”，能夠(gou)精(jing)準(zhun)地控(kong)(kong)制(zhi)“水(shui)流(liu)(liu)(liu)(liu)(liu)”的(de)(de)方向(xiang)、速度(du)和(he)流(liu)(liu)(liu)(liu)(liu)量(liang)，彌補了常規直(zhi)流(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)電(dian)(dian)(dian)只(zhi)能控(kong)(kong)制(zhi)“水(shui)流(liu)(liu)(liu)(liu)(liu)”方向(xiang)的(de)(de)局(ju)限性(xing)，攻(gong)克了世界(jie)輸(shu)(shu)電(dian)(dian)(dian)技術領(ling)域的(de)(de)一(yi)大難題(ti)。

廈門柔(rou)性直(zhi)(zhi)(zhi)流(liu)工(gong)(gong)(gong)(gong)程(cheng)的(de)建成投(tou)運(yun)，標志(zhi)著我國(guo)全面掌握(wo)高壓大(da)容量柔(rou)性直(zhi)(zhi)(zhi)流(liu)輸(shu)(shu)電(dian)(dian)工(gong)(gong)(gong)(gong)程(cheng)設計、設備(bei)制造、工(gong)(gong)(gong)(gong)程(cheng)施工(gong)(gong)(gong)(gong)調試、運(yun)營(ying)等關鍵技術(shu)，具備(bei)工(gong)(gong)(gong)(gong)程(cheng)成套能力(li)，對于進(jin)一步提(ti)(ti)高我國(guo)直(zhi)(zhi)(zhi)流(liu)輸(shu)(shu)電(dian)(dian)技術(shu)水(shui)平和電(dian)(dian)力(li)裝(zhuang)備(bei)制造水(shui)平具有重要意義，為(wei)開拓(tuo)國(guo)際柔(rou)性直(zhi)(zhi)(zhi)流(liu)工(gong)(gong)(gong)(gong)程(cheng)市場奠定了堅實基(ji)礎，為(wei)更(geng)高、更(geng)大(da)輸(shu)(shu)送容量柔(rou)性直(zhi)(zhi)(zhi)流(liu)輸(shu)(shu)電(dian)(dian)工(gong)(gong)(gong)(gong)程(cheng)的(de)建設提(ti)(ti)供可復制、可推(tui)廣的(de)經驗(yan)，也為(wei)構建全球能源互聯(lian)網提(ti)(ti)供了先行(xing)實踐。

廈門(men)(men)是國際性(xing)海島城(cheng)市，島內(nei)沒(mei)有大型電(dian)源，所有電(dian)力負(fu)荷(he)均須由島外(wai)電(dian)網送入。隨著廈門(men)(men)島負(fu)荷(he)的(de)持(chi)續增長，預計(ji)到2016年，7回220千伏(fu)進島線(xian)路將難以滿(man)足(zu)島內(nei)用電(dian)需求(qiu)。廈門(men)(men)柔性(xing)直流工程投(tou)運后(hou)，將有效增強(qiang)廈門(men)(men)地區電(dian)網網架(jia)結構(gou)，滿(man)足(zu)廈門(men)(men)島內(nei)負(fu)荷(he)增長需求(qiu)，還能快速調節島內(nei)電(dian)網的(de)無功(gong)功(gong)率，穩定(ding)電(dian)網電(dian)壓，提高電(dian)網供電(dian)可靠性(xing)和穩定(ding)運行水(shui)平，為廈門(men)(men)經濟社會發展提供堅強(qiang)可靠的(de)電(dian)力保障。

在工(gong)(gong)程建(jian)設過程中，國家(jia)電網公司各相(xiang)關(guan)單位制定(ding)了高(gao)標(biao)準的工(gong)(gong)程建(jian)設目標(biao)，力爭把工(gong)(gong)程建(jian)設為(wei)“安全可靠、自主創(chuang)新、經濟合(he)理、環(huan)境友好、國際(ji)一流(liu)”的優質精品工(gong)(gong)程。針對(dui)柔直工(gong)(gong)程設備(bei)技術新、安裝(zhuang)調(diao)試要求高(gao)、工(gong)(gong)期安排(pai)緊湊等特點，各相(xiang)關(guan)單位克(ke)服高(gao)溫天氣、施工(gong)(gong)極為(wei)復(fu)雜等困難，攻堅克(ke)難、科學施工(gong)(gong)，確(que)保了工(gong)(gong)程按期完工(gong)(gong)、一次投運成功、安全運行。

近年來(lai)，國家(jia)電(dian)(dian)網(wang)公司認(ren)真貫徹落實國家(jia)創新驅(qu)動發(fa)展戰略，“十二(er)五(wu)”期間，在(zai)特高壓(ya)輸電(dian)(dian)、智能電(dian)(dian)網(wang)、新能源(yuan)并網(wang)、大電(dian)(dian)網(wang)安全運行(xing)和電(dian)(dian)力電(dian)(dian)子技(ji)術等方面取得了(le)一系列(lie)重大突破(po)，有力地支撐了(le)公司和電(dian)(dian)網(wang)跨越(yue)式發(fa)展。