文章來源：中(zhong)國南方電網有限責任公司 發布時(shi)間：2016-06-15
6月(yue)12日(ri)，世界首次采(cai)用大容量柔性(xing)直流(liu)與常(chang)規直流(liu)組合模式的(de)背(bei)靠(kao)背(bei)直流(liu)工(gong)(gong)(gong)(gong)程(cheng)——云南電(dian)網(wang)(wang)主網(wang)(wang)與南方電(dian)網(wang)(wang)主網(wang)(wang)異步聯(lian)網(wang)(wang)工(gong)(gong)(gong)(gong)程(cheng)（簡稱(cheng)“魯西(xi)背(bei)靠(kao)背(bei)直流(liu)工(gong)(gong)(gong)(gong)程(cheng)”）正式開工(gong)(gong)(gong)(gong)建設。工(gong)(gong)(gong)(gong)程(cheng)柔性(xing)直流(liu)電(dian)壓達±350千伏，一期工(gong)(gong)(gong)(gong)程(cheng)包括100萬千瓦(wa)柔性(xing)直流(liu)和100萬千瓦(wa)常(chang)規直流(liu)，最終(zhong)規模達到300萬千瓦(wa)；計劃2016年6月(yue)30日(ri)建成(cheng)投(tou)運。
背靠背直(zhi)流(liu)(liu)工程，就是將高壓直(zhi)流(liu)(liu)輸(shu)電(dian)的(de)整(zheng)流(liu)(liu)站(zhan)和逆變站(zhan)合并(bing)在一(yi)個換流(liu)(liu)站(zhan)內(nei)，在同一(yi)處完成交(jiao)流(liu)(liu)變直(zhi)流(liu)(liu)、再由直(zhi)流(liu)(liu)變交(jiao)流(liu)(liu)的(de)換流(liu)(liu)過程。該工程投產后，將實現云南電(dian)網(wang)與南方電(dian)網(wang)主網(wang)相連的(de)3條500千伏交(jiao)流(liu)(liu)線(xian)路(lu)全部異步聯網(wang)，可(ke)有效化解西(xi)電(dian)東送交(jiao)直(zhi)流(liu)(liu)功率轉移引起(qi)的(de)南方電(dian)網(wang)主網(wang)安全穩(wen)定(ding)(ding)問題，簡化負責故(gu)障下電(dian)網(wang)安全穩(wen)定(ding)(ding)控(kong)制(zhi)策略，降低大面積停電(dian)風險。
魯西背(bei)靠背(bei)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)工程建設(she)地點位于云南(nan)省曲靖市羅平縣(xian)，實現了三(san)個“首次(ci)”：一(yi)是(shi)在世界(jie)(jie)首次(ci)采用大容(rong)量(liang)柔(rou)(rou)直(zhi)(zhi)(zhi)(zhi)(zhi)與常規(gui)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)組(zu)合模式；二是(shi)首次(ci)建設(she)世界(jie)(jie)最高電(dian)(dian)(dian)(dian)(dian)壓(ya)、最大容(rong)量(liang)柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)工程，柔(rou)(rou)直(zhi)(zhi)(zhi)(zhi)(zhi)單元(yuan)容(rong)量(liang)達(da)(da)100萬千瓦、直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)壓(ya)達(da)(da)±350千伏；三(san)是(shi)在國(guo)內(nei)(nei)首次(ci)研制(zhi)了單相(xiang)三(san)繞(rao)組(zu)換流(liu)(liu)(liu)變、柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)換流(liu)(liu)(liu)閥及閥控、單相(xiang)雙繞(rao)組(zu)聯接變以及直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)控制(zhi)保護等換流(liu)(liu)(liu)站主設(she)備。工程的建設(she)，不僅能(neng)夠促進(jin)高電(dian)(dian)(dian)(dian)(dian)壓(ya)、大容(rong)量(liang)柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)整體設(she)計(ji)技(ji)術(shu)、試(shi)驗(yan)技(ji)術(shu)、裝備制(zhi)造業(ye)(ye)的發展創新，帶動輸(shu)(shu)變電(dian)(dian)(dian)(dian)(dian)行業(ye)(ye)的產(chan)業(ye)(ye)結構升級，更能(neng)提升我國(guo)在柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)領域(yu)的技(ji)術(shu)水平，對今后國(guo)內(nei)(nei)柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)技(ji)術(shu)相(xiang)關產(chan)業(ye)(ye)將起到(dao)明顯(xian)的示范、帶動作(zuo)用。