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8月29日，南(nan)方電(dian)網(wang)首(shou)個背(bei)(bei)(bei)靠背(bei)(bei)(bei)直(zhi)(zhi)(zhi)流(liu)(liu)工(gong)(gong)程(cheng)——云南(nan)電(dian)網(wang)與(yu)南(nan)網(wang)主網(wang)魯西背(bei)(bei)(bei)靠背(bei)(bei)(bei)直(zhi)(zhi)(zhi)流(liu)(liu)異步聯網(wang)工(gong)(gong)程(cheng)（簡稱“魯西背(bei)(bei)(bei)靠背(bei)(bei)(bei)直(zhi)(zhi)(zhi)流(liu)(liu)工(gong)(gong)程(cheng)”）柔性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)單元正式(shi)投(tou)(tou)運，標志著(zhu)世界首(shou)個采(cai)用(yong)大(da)容量柔性(xing)直(zhi)(zhi)(zhi)流(liu)(liu)與(yu)常規直(zhi)(zhi)(zhi)流(liu)(liu)組合模式(shi)的(de)背(bei)(bei)(bei)靠背(bei)(bei)(bei)直(zhi)(zhi)(zhi)流(liu)(liu)工(gong)(gong)程(cheng)全面建成投(tou)(tou)運。

魯西背靠背直(zhi)(zhi)(zhi)流(liu)(liu)工程(cheng)(cheng)一(yi)期建設1×100萬(wan)千(qian)瓦(wa)常(chang)規直(zhi)(zhi)(zhi)流(liu)(liu)單(dan)元(yuan)加1×100萬(wan)千(qian)瓦(wa)柔性(xing)(xing)直(zhi)(zhi)(zhi)流(liu)(liu)單(dan)元(yuan)；常(chang)規直(zhi)(zhi)(zhi)流(liu)(liu)單(dan)元(yuan)已(yi)于6月(yue)30日(ri)投(tou)運送(song)電(dian)(dian)。柔性(xing)(xing)直(zhi)(zhi)(zhi)流(liu)(liu)單(dan)元(yuan)額定容量100萬(wan)千(qian)瓦(wa)、直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)壓±350千(qian)伏，容量和電(dian)(dian)壓等級均為目前世(shi)界(jie)柔性(xing)(xing)直(zhi)(zhi)(zhi)流(liu)(liu)最高水平(ping)。該工程(cheng)(cheng)所需的大容量單(dan)相三繞組(zu)換流(liu)(liu)變、柔性(xing)(xing)直(zhi)(zhi)(zhi)流(liu)(liu)換流(liu)(liu)閥及(ji)閥控(kong)等核心(xin)設備均為國內首次(ci)研(yan)制(zhi)并(bing)成功應用(yong)，有效(xiao)促進了(le)國內柔性(xing)(xing)直(zhi)(zhi)(zhi)流(liu)(liu)輸電(dian)(dian)成套設計技(ji)術、試驗技(ji)術、裝(zhuang)備制(zhi)造業(ye)的發(fa)展創新，帶動了(le)輸變電(dian)(dian)行(xing)業(ye)的產(chan)業(ye)結(jie)構升(sheng)(sheng)級，提(ti)升(sheng)(sheng)了(le)我國柔性(xing)(xing)直(zhi)(zhi)(zhi)流(liu)(liu)輸電(dian)(dian)技(ji)術水平(ping)。柔性(xing)(xing)直(zhi)(zhi)(zhi)流(liu)(liu)單(dan)元(yuan)投(tou)運后，每年可增送(song)云南(nan)外送(song)電(dian)(dian)量約(yue)90億千(qian)瓦(wa)時(shi)，將進一(yi)步滿足云南(nan)汛期富余水電(dian)(dian)消納(na)需求，并(bing)進一(yi)步提(ti)升(sheng)(sheng)南(nan)方電(dian)(dian)網主網架安全穩定運行(xing)水平(ping)。

背(bei)靠背(bei)直(zhi)流(liu)工程是(shi)將高(gao)壓直(zhi)流(liu)輸電(dian)的(de)(de)整流(liu)站(zhan)(zhan)和逆(ni)變(bian)(bian)站(zhan)(zhan)合并在(zai)一個(ge)換(huan)流(liu)站(zhan)(zhan)內，在(zai)同一個(ge)換(huan)流(liu)站(zhan)(zhan)內完成交(jiao)流(liu)變(bian)(bian)直(zhi)流(liu)、再由(you)直(zhi)流(liu)變(bian)(bian)交(jiao)流(liu)的(de)(de)換(huan)流(liu)過程，可有效(xiao)化解(jie)交(jiao)直(zhi)流(liu)功率(lv)轉移引起(qi)的(de)(de)電(dian)網安(an)全穩定問題(ti)(ti)、避免(mian)大面(mian)積停電(dian)風險，提高(gao)電(dian)網的(de)(de)安(an)全供電(dian)可靠性。柔性直(zhi)流(liu)技(ji)術是(shi)新(xin)一代的(de)(de)直(zhi)流(liu)輸電(dian)技(ji)術，它不需要交(jiao)流(liu)側電(dian)壓支撐，控制(zhi)更(geng)(geng)靈活，電(dian)能質量更(geng)(geng)高(gao)，換(huan)流(liu)站(zhan)(zhan)占地也更(geng)(geng)小(xiao)，可有效(xiao)避免(mian)常規直(zhi)流(liu)由(you)于交(jiao)流(liu)側電(dian)壓不穩而引起(qi)的(de)(de)換(huan)相(xiang)失敗問題(ti)(ti)。