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6月11日(ri)，由南(nan)方(fang)電(dian)網投(tou)資(zi)建(jian)設的世界首(shou)個(ge)±500千伏三端直流工(gong)(gong)(gong)程(cheng)——云(yun)貴互聯(lian)通道工(gong)(gong)(gong)程(cheng)順利竣工(gong)(gong)(gong)，并一次性實(shi)現三端雙極投(tou)產，比計(ji)劃時間提(ti)前19天(tian)投(tou)產，標志著云(yun)南(nan)與貴州(zhou)兩省形成電(dian)力互聯(lian)互濟綜(zong)合體。工(gong)(gong)(gong)程(cheng)投(tou)產后，每年可(ke)輸送云(yun)南(nan)清潔(jie)水(shui)電(dian)約(yue)60億千瓦時至粵港澳大(da)灣區，相當于減少火電(dian)標準煤約(yue)180萬噸(dun)，減少二氧化碳排放約(yue)480萬噸(dun)，將有效助力打贏(ying)藍天(tian)保(bao)衛戰，對促進云(yun)南(nan)清潔(jie)水(shui)電(dian)消納、助力粵港澳大(da)灣區建(jian)設具有十分重要的作用。

6月11日，云貴互聯通道工程順利投產。

該工(gong)程是國(guo)家重(zhong)點輸變(bian)電項(xiang)目，是南(nan)方電網落實國(guo)家西部大開發戰略(lve)、落實黨中(zhong)央國(guo)務院推進“新基建(jian)”決(jue)策部署、助力(li)能源(yuan)轉型和(he)高(gao)(gao)(gao)質量(liang)發展的標志(zhi)性(xing)工(gong)程。工(gong)程投資38.26億元，新建(jian)云(yun)南(nan)祿勸換(huan)流(liu)(liu)站(zhan)和(he)1回(hui)聯接高(gao)(gao)(gao)肇直(zhi)流(liu)(liu)送端(duan)高(gao)(gao)(gao)坡換(huan)流(liu)(liu)站(zhan)的389公里長的直(zhi)流(liu)(liu)線路(lu)，改(gai)造貴(gui)州(zhou)高(gao)(gao)(gao)坡換(huan)流(liu)(liu)站(zhan)、廣(guang)(guang)東肇慶換(huan)流(liu)(liu)站(zhan)，形成(cheng)云(yun)南(nan)祿勸換(huan)流(liu)(liu)站(zhan)-貴(gui)州(zhou)高(gao)(gao)(gao)坡換(huan)流(liu)(liu)站(zhan)-廣(guang)(guang)東肇慶換(huan)流(liu)(liu)站(zhan)三(san)端(duan)直(zhi)流(liu)(liu)，額(e)定容(rong)量(liang)300萬千瓦。

2019年7月，工(gong)(gong)(gong)程開工(gong)(gong)(gong)建(jian)設(she)(she)。今年2月底全(quan)面(mian)復(fu)工(gong)(gong)(gong)以來，南方電(dian)(dian)(dian)網積極發(fa)揮國有(you)重要骨(gu)干企(qi)業(ye)影響力(li)、帶動(dong)力(li)，扎(zha)實做(zuo)好“六穩”工(gong)(gong)(gong)作(zuo)，落實“六保”任務，統籌推進(jin)疫情(qing)防控(kong)和服務經濟(ji)社會發(fa)展，加快推進(jin)工(gong)(gong)(gong)程建(jian)設(she)(she)。在(zai)保能源(yuan)安全(quan)方面(mian)，南方電(dian)(dian)(dian)網充分(fen)發(fa)揮資(zi)源(yuan)優化配(pei)置大平臺的(de)作(zuo)用，安排(pai)該工(gong)(gong)(gong)程調試階段及時恢(hui)復(fu)從貴(gui)州向廣東(dong)送電(dian)(dian)(dian)，有(you)效(xiao)緩解了廣東(dong)因(yin)企(qi)業(ye)復(fu)工(gong)(gong)(gong)復(fu)產及持(chi)續高(gao)溫(wen)出現的(de)電(dian)(dian)(dian)力(li)供(gong)應緊張形勢。在(zai)保就業(ye)方面(mian)，云貴(gui)互(hu)聯通道工(gong)(gong)(gong)程建(jian)設(she)(she)高(gao)峰(feng)時期(qi)全(quan)線投入4300余(yu)人，僅(jin)高(gao)坡換流站就吸收當地(di)工(gong)(gong)(gong)人97人，積極幫(bang)助當地(di)工(gong)(gong)(gong)人解決因(yin)疫情(qing)外出務工(gong)(gong)(gong)難問(wen)題。在(zai)保產業(ye)鏈(lian)供(gong)應鏈(lian)穩定方面(mian)，工(gong)(gong)(gong)程建(jian)設(she)(she)有(you)效(xiao)帶動(dong)了包括(kuo)原材料、電(dian)(dian)(dian)力(li)設(she)(she)備、電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子器件、施工(gong)(gong)(gong)、監理、檢(jian)測等在(zai)內的(de)電(dian)(dian)(dian)力(li)產業(ye)鏈(lian)上(shang)下游(you)眾多企(qi)業(ye)復(fu)工(gong)(gong)(gong)復(fu)產達(da)產。

祿勸換流站是南方電網海拔最高的500千伏變電站，海拔標高2530米。

據介紹，該工程在(zai)世界上首次實(shi)現將兩端(duan)(duan)(duan)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)改造為三端(duan)(duan)(duan)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)，送電(dian)(dian)方式更(geng)加靈活(huo)，經濟性更(geng)優(you)(you)，對(dui)于大規模(mo)電(dian)(dian)源送出、受端(duan)(duan)(duan)多(duo)點分散(san)接入、優(you)(you)化電(dian)(dian)網結構、提高(gao)受端(duan)(duan)(duan)電(dian)(dian)網的(de)安全穩(wen)定水平具有(you)工程實(shi)用意義。此(ci)外(wai)，該工程還克服了(le)高(gao)海拔、重冰區、巖溶(rong)發達(da)、喀斯特地貌等難題，實(shi)現多(duo)端(duan)(duan)(duan)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)靈活(huo)送電(dian)(dian)、高(gao)海拔直(zhi)(zhi)(zhi)流(liu)(liu)(liu)設備(bei)等多(duo)項(xiang)電(dian)(dian)網技術突破(po)。其(qi)中(zhong)，三端(duan)(duan)(duan)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)控(kong)制保護(hu)系統、直(zhi)(zhi)(zhi)流(liu)(liu)(liu)高(gao)速開關等工程關鍵設備(bei)全面使用國產設備(bei)，自(zi)主化率(lv)達(da)到100%，對(dui)于我國掌握(wo)多(duo)端(duan)(duan)(duan)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)關鍵技術具有(you)重要里程碑意義。

【責任編輯：趙藝(yi)涵】