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6月11日，由南(nan)方電(dian)(dian)網投(tou)資建設的(de)世界首個±500千伏三端(duan)(duan)直流工(gong)程——云貴互(hu)聯通道工(gong)程順利竣工(gong)，并一次(ci)性(xing)實(shi)現三端(duan)(duan)雙極投(tou)產，比計劃時(shi)間提前19天投(tou)產，標(biao)志著云南(nan)與貴州(zhou)兩省形成電(dian)(dian)力互(hu)聯互(hu)濟綜合體。工(gong)程投(tou)產后，每年可輸(shu)送云南(nan)清(qing)潔水電(dian)(dian)約(yue)60億千瓦時(shi)至(zhi)粵(yue)港(gang)澳大灣區(qu)，相當于減少火(huo)電(dian)(dian)標(biao)準煤(mei)約(yue)180萬噸(dun)，減少二(er)氧化碳(tan)排(pai)放約(yue)480萬噸(dun)，將有(you)效助(zhu)(zhu)力打贏藍(lan)天保衛戰，對促進云南(nan)清(qing)潔水電(dian)(dian)消納、助(zhu)(zhu)力粵(yue)港(gang)澳大灣區(qu)建設具(ju)有(you)十分重要的(de)作用(yong)。

6月11日，云貴互聯通道工程順利投產。

該工(gong)程是國(guo)家(jia)重(zhong)點輸變電項目，是南方電網落實國(guo)家(jia)西部(bu)大開發戰略(lve)、落實黨中央國(guo)務(wu)院推進“新(xin)基建”決策部(bu)署、助力能源(yuan)轉型和(he)(he)高(gao)質量(liang)發展的(de)標志(zhi)性工(gong)程。工(gong)程投(tou)資38.26億元，新(xin)建云南祿勸(quan)換(huan)(huan)(huan)流(liu)站(zhan)和(he)(he)1回聯接高(gao)肇(zhao)直流(liu)送端高(gao)坡換(huan)(huan)(huan)流(liu)站(zhan)的(de)389公里長的(de)直流(liu)線路(lu)，改造(zao)貴(gui)州(zhou)(zhou)高(gao)坡換(huan)(huan)(huan)流(liu)站(zhan)、廣東(dong)肇(zhao)慶(qing)換(huan)(huan)(huan)流(liu)站(zhan)，形成(cheng)云南祿勸(quan)換(huan)(huan)(huan)流(liu)站(zhan)-貴(gui)州(zhou)(zhou)高(gao)坡換(huan)(huan)(huan)流(liu)站(zhan)-廣東(dong)肇(zhao)慶(qing)換(huan)(huan)(huan)流(liu)站(zhan)三端直流(liu)，額定容量(liang)300萬千(qian)瓦(wa)。

2019年7月(yue)，工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程開工(gong)(gong)(gong)(gong)(gong)(gong)(gong)建(jian)設。今(jin)年2月(yue)底全面(mian)復(fu)(fu)(fu)(fu)(fu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)以(yi)來，南方(fang)(fang)電(dian)網積(ji)極發揮國有重要骨干企(qi)業(ye)(ye)影響(xiang)力(li)、帶(dai)(dai)動力(li)，扎實做好“六穩(wen)”工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作，落實“六保”任務(wu)，統籌推進疫情防(fang)控和服務(wu)經濟社(she)會(hui)發展，加快推進工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程建(jian)設。在(zai)(zai)保能源(yuan)安(an)全方(fang)(fang)面(mian)，南方(fang)(fang)電(dian)網充分發揮資源(yuan)優化配置(zhi)大平臺的(de)作用，安(an)排(pai)該工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程調(diao)試階段及(ji)時(shi)恢復(fu)(fu)(fu)(fu)(fu)從貴(gui)州(zhou)向(xiang)廣東送電(dian)，有效緩解了(le)廣東因企(qi)業(ye)(ye)復(fu)(fu)(fu)(fu)(fu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)復(fu)(fu)(fu)(fu)(fu)產(chan)及(ji)持續高(gao)溫出現(xian)的(de)電(dian)力(li)供應緊張形勢。在(zai)(zai)保就(jiu)業(ye)(ye)方(fang)(fang)面(mian)，云貴(gui)互聯通道工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程建(jian)設高(gao)峰(feng)時(shi)期全線投入4300余人(ren)(ren)，僅高(gao)坡(po)換流站就(jiu)吸(xi)收(shou)當地工(gong)(gong)(gong)(gong)(gong)(gong)(gong)人(ren)(ren)97人(ren)(ren)，積(ji)極幫助當地工(gong)(gong)(gong)(gong)(gong)(gong)(gong)人(ren)(ren)解決(jue)因疫情外出務(wu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)難問題。在(zai)(zai)保產(chan)業(ye)(ye)鏈供應鏈穩(wen)定方(fang)(fang)面(mian)，工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程建(jian)設有效帶(dai)(dai)動了(le)包括原材(cai)料、電(dian)力(li)設備、電(dian)力(li)電(dian)子器件、施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)、監理、檢測(ce)等在(zai)(zai)內的(de)電(dian)力(li)產(chan)業(ye)(ye)鏈上下游眾多企(qi)業(ye)(ye)復(fu)(fu)(fu)(fu)(fu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)復(fu)(fu)(fu)(fu)(fu)產(chan)達產(chan)。

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(jie)紹，該(gai)工(gong)程(cheng)在世界上首次(ci)實(shi)現(xian)將(jiang)兩端(duan)直(zhi)流(liu)(liu)(liu)改(gai)造為(wei)三端(duan)直(zhi)流(liu)(liu)(liu)，送電(dian)方式更加靈(ling)活，經濟性更優，對于(yu)大規(gui)模電(dian)源送出(chu)、受端(duan)多點分散接入、優化電(dian)網(wang)(wang)結構、提高(gao)(gao)受端(duan)電(dian)網(wang)(wang)的安全(quan)穩定水平(ping)具(ju)有(you)工(gong)程(cheng)實(shi)用意義。此(ci)外，該(gai)工(gong)程(cheng)還克服了高(gao)(gao)海拔、重(zhong)冰區、巖(yan)溶發達(da)、喀斯特地貌等(deng)難題，實(shi)現(xian)多端(duan)直(zhi)流(liu)(liu)(liu)靈(ling)活送電(dian)、高(gao)(gao)海拔直(zhi)流(liu)(liu)(liu)設備(bei)(bei)等(deng)多項電(dian)網(wang)(wang)技(ji)術突(tu)破(po)。其中(zhong)，三端(duan)直(zhi)流(liu)(liu)(liu)控制保護系(xi)統、直(zhi)流(liu)(liu)(liu)高(gao)(gao)速開關(guan)等(deng)工(gong)程(cheng)關(guan)鍵設備(bei)(bei)全(quan)面使用國產設備(bei)(bei)，自主化率達(da)到100%，對于(yu)我國掌握多端(duan)直(zhi)流(liu)(liu)(liu)關(guan)鍵技(ji)術具(ju)有(you)重(zhong)要里程(cheng)碑意義。

【責任編(bian)輯：趙(zhao)藝涵】