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8月29日，南(nan)(nan)方電網(wang)首個(ge)背(bei)(bei)靠背(bei)(bei)直(zhi)(zhi)流(liu)工程(cheng)——云(yun)南(nan)(nan)電網(wang)與南(nan)(nan)網(wang)主(zhu)網(wang)魯西背(bei)(bei)靠背(bei)(bei)直(zhi)(zhi)流(liu)異步聯(lian)網(wang)工程(cheng)（簡(jian)稱“魯西背(bei)(bei)靠背(bei)(bei)直(zhi)(zhi)流(liu)工程(cheng)”）柔(rou)性直(zhi)(zhi)流(liu)單元正式投運，標志著世界首個(ge)采用大容量柔(rou)性直(zhi)(zhi)流(liu)與常規直(zhi)(zhi)流(liu)組合(he)模式的(de)背(bei)(bei)靠背(bei)(bei)直(zhi)(zhi)流(liu)工程(cheng)全面(mian)建成(cheng)投運。

魯西背靠(kao)背直(zhi)(zhi)(zhi)流(liu)(liu)(liu)工(gong)(gong)程一(yi)期建設1×100萬(wan)千(qian)(qian)瓦常規直(zhi)(zhi)(zhi)流(liu)(liu)(liu)單元(yuan)加1×100萬(wan)千(qian)(qian)瓦柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)單元(yuan)；常規直(zhi)(zhi)(zhi)流(liu)(liu)(liu)單元(yuan)已于6月30日投運(yun)送(song)電(dian)(dian)。柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)單元(yuan)額定容量(liang)100萬(wan)千(qian)(qian)瓦、直(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)壓(ya)±350千(qian)(qian)伏，容量(liang)和電(dian)(dian)壓(ya)等(deng)級均為(wei)目前世界(jie)柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)最高水(shui)平(ping)。該工(gong)(gong)程所需(xu)的大容量(liang)單相三繞(rao)組換(huan)流(liu)(liu)(liu)變(bian)(bian)、柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)換(huan)流(liu)(liu)(liu)閥(fa)及閥(fa)控等(deng)核(he)心設備均為(wei)國(guo)內首次研制并成(cheng)功應用，有(you)效(xiao)促進(jin)了國(guo)內柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)輸(shu)電(dian)(dian)成(cheng)套設計(ji)技(ji)術(shu)、試驗技(ji)術(shu)、裝備制造業(ye)的發展創(chuang)新(xin)，帶動了輸(shu)變(bian)(bian)電(dian)(dian)行業(ye)的產業(ye)結(jie)構升(sheng)級，提升(sheng)了我國(guo)柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)輸(shu)電(dian)(dian)技(ji)術(shu)水(shui)平(ping)。柔(rou)(rou)性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)單元(yuan)投運(yun)后(hou)，每年可增送(song)云南外送(song)電(dian)(dian)量(liang)約90億千(qian)(qian)瓦時，將(jiang)進(jin)一(yi)步滿足云南汛期富余水(shui)電(dian)(dian)消(xiao)納需(xu)求，并進(jin)一(yi)步提升(sheng)南方電(dian)(dian)網主網架安(an)全穩定運(yun)行水(shui)平(ping)。

背靠(kao)背直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)工(gong)程(cheng)(cheng)是將(jiang)高壓直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)輸(shu)電(dian)(dian)(dian)(dian)(dian)的(de)(de)整(zheng)流(liu)(liu)(liu)(liu)(liu)站(zhan)(zhan)和逆變(bian)站(zhan)(zhan)合并(bing)在(zai)(zai)一個換流(liu)(liu)(liu)(liu)(liu)站(zhan)(zhan)內，在(zai)(zai)同一個換流(liu)(liu)(liu)(liu)(liu)站(zhan)(zhan)內完(wan)成交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)變(bian)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)、再(zai)由直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)變(bian)交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)的(de)(de)換流(liu)(liu)(liu)(liu)(liu)過程(cheng)(cheng)，可(ke)有效(xiao)(xiao)化解(jie)交(jiao)(jiao)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)功(gong)率轉移引起(qi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)網(wang)安全穩定(ding)問題、避免(mian)大面(mian)積停電(dian)(dian)(dian)(dian)(dian)風險，提高電(dian)(dian)(dian)(dian)(dian)網(wang)的(de)(de)安全供(gong)電(dian)(dian)(dian)(dian)(dian)可(ke)靠(kao)性。柔性直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)技(ji)術是新一代的(de)(de)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)輸(shu)電(dian)(dian)(dian)(dian)(dian)技(ji)術，它不(bu)需要交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)側電(dian)(dian)(dian)(dian)(dian)壓支(zhi)撐，控制更靈(ling)活，電(dian)(dian)(dian)(dian)(dian)能質量更高，換流(liu)(liu)(liu)(liu)(liu)站(zhan)(zhan)占地也更小，可(ke)有效(xiao)(xiao)避免(mian)常規直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)由于交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)側電(dian)(dian)(dian)(dian)(dian)壓不(bu)穩而引起(qi)的(de)(de)換相失敗問題。