免费菠萝视频app下载

6月11日(ri)，由南方電網投(tou)資建(jian)設(she)的(de)世界首(shou)個±500千(qian)伏(fu)三端直流(liu)工(gong)程——云(yun)(yun)(yun)貴互(hu)(hu)聯通道工(gong)程順利竣工(gong)，并一次性實(shi)現三端雙(shuang)極投(tou)產，比計劃時(shi)間提前19天(tian)投(tou)產，標志著云(yun)(yun)(yun)南與貴州兩省形成電力互(hu)(hu)聯互(hu)(hu)濟綜合體。工(gong)程投(tou)產后，每年可輸送云(yun)(yun)(yun)南清潔(jie)水電約(yue)(yue)60億千(qian)瓦時(shi)至粵港(gang)澳大灣區，相當于減少火電標準煤約(yue)(yue)180萬(wan)噸，減少二氧化碳(tan)排放約(yue)(yue)480萬(wan)噸，將有(you)效助力打(da)贏藍天(tian)保衛戰，對促進云(yun)(yun)(yun)南清潔(jie)水電消(xiao)納、助力粵港(gang)澳大灣區建(jian)設(she)具有(you)十分重要的(de)作用。

6月11日，云貴互聯通道工程順利投產。

該工程是國(guo)(guo)家重點輸變電項目，是南方電網落實國(guo)(guo)家西部(bu)(bu)大開發戰(zhan)略、落實黨中央國(guo)(guo)務(wu)院推進“新基建”決策部(bu)(bu)署、助力能源轉(zhuan)型和高(gao)質量(liang)發展的標(biao)志(zhi)性工程。工程投資38.26億(yi)元，新建云南祿(lu)勸(quan)換(huan)流(liu)(liu)站(zhan)(zhan)和1回聯接高(gao)肇直流(liu)(liu)送端高(gao)坡(po)換(huan)流(liu)(liu)站(zhan)(zhan)的389公里長(chang)的直流(liu)(liu)線(xian)路，改(gai)造貴(gui)州(zhou)高(gao)坡(po)換(huan)流(liu)(liu)站(zhan)(zhan)、廣東肇慶換(huan)流(liu)(liu)站(zhan)(zhan)，形成云南祿(lu)勸(quan)換(huan)流(liu)(liu)站(zhan)(zhan)-貴(gui)州(zhou)高(gao)坡(po)換(huan)流(liu)(liu)站(zhan)(zhan)-廣東肇慶換(huan)流(liu)(liu)站(zhan)(zhan)三(san)端直流(liu)(liu)，額(e)定容量(liang)300萬千瓦。

2019年(nian)7月，工(gong)(gong)(gong)程開工(gong)(gong)(gong)建(jian)(jian)設(she)。今年(nian)2月底全面復(fu)工(gong)(gong)(gong)以來，南(nan)方電(dian)(dian)(dian)網積(ji)極發揮(hui)國有重要骨干企(qi)業影響力(li)(li)、帶動力(li)(li)，扎實做好“六穩”工(gong)(gong)(gong)作(zuo)，落實“六保(bao)”任務，統籌推進疫(yi)情(qing)防控和服務經濟社會發展，加快推進工(gong)(gong)(gong)程建(jian)(jian)設(she)。在保(bao)能(neng)源(yuan)安全方面，南(nan)方電(dian)(dian)(dian)網充(chong)分(fen)發揮(hui)資源(yuan)優化(hua)配(pei)置(zhi)大平臺的(de)作(zuo)用，安排(pai)該(gai)工(gong)(gong)(gong)程調試階段及時恢復(fu)從貴州向(xiang)廣東送電(dian)(dian)(dian)，有效緩解了廣東因企(qi)業復(fu)工(gong)(gong)(gong)復(fu)產及持續高溫出(chu)現(xian)的(de)電(dian)(dian)(dian)力(li)(li)供(gong)應(ying)緊張形勢。在保(bao)就業方面，云貴互聯(lian)通(tong)道工(gong)(gong)(gong)程建(jian)(jian)設(she)高峰(feng)時期全線投(tou)入4300余(yu)人(ren)，僅高坡(po)換流站(zhan)就吸收當地(di)工(gong)(gong)(gong)人(ren)97人(ren)，積(ji)極幫助當地(di)工(gong)(gong)(gong)人(ren)解決因疫(yi)情(qing)外出(chu)務工(gong)(gong)(gong)難問題。在保(bao)產業鏈供(gong)應(ying)鏈穩定方面，工(gong)(gong)(gong)程建(jian)(jian)設(she)有效帶動了包括(kuo)原材料(liao)、電(dian)(dian)(dian)力(li)(li)設(she)備(bei)、電(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)子器件(jian)、施工(gong)(gong)(gong)、監理、檢測(ce)等在內(nei)的(de)電(dian)(dian)(dian)力(li)(li)產業鏈上下游眾(zhong)多企(qi)業復(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(gai)工程(cheng)在世界上首次(ci)實(shi)(shi)現(xian)將兩端(duan)直(zhi)(zhi)(zhi)流(liu)(liu)改造為三(san)端(duan)直(zhi)(zhi)(zhi)流(liu)(liu)，送(song)(song)電(dian)(dian)(dian)方式(shi)更加靈(ling)活(huo)，經濟性更優，對于(yu)大(da)規模電(dian)(dian)(dian)源(yuan)送(song)(song)出(chu)、受端(duan)多點分散接入、優化(hua)電(dian)(dian)(dian)網結構(gou)、提高受端(duan)電(dian)(dian)(dian)網的(de)安(an)全(quan)穩定水平具有工程(cheng)實(shi)(shi)用意義。此(ci)外，該(gai)工程(cheng)還克(ke)服了(le)高海拔、重冰區、巖(yan)溶發達、喀(ka)斯特(te)地貌等(deng)難題，實(shi)(shi)現(xian)多端(duan)直(zhi)(zhi)(zhi)流(liu)(liu)靈(ling)活(huo)送(song)(song)電(dian)(dian)(dian)、高海拔直(zhi)(zhi)(zhi)流(liu)(liu)設(she)(she)備等(deng)多項電(dian)(dian)(dian)網技術突(tu)破。其中，三(san)端(duan)直(zhi)(zhi)(zhi)流(liu)(liu)控制保護系統、直(zhi)(zhi)(zhi)流(liu)(liu)高速開關(guan)(guan)等(deng)工程(cheng)關(guan)(guan)鍵設(she)(she)備全(quan)面使(shi)用國(guo)產設(she)(she)備，自(zi)主化(hua)率(lv)達到100%，對于(yu)我國(guo)掌握多端(duan)直(zhi)(zhi)(zhi)流(liu)(liu)關(guan)(guan)鍵技術具有重要(yao)里(li)程(cheng)碑意義。

【責任編輯(ji)：趙藝涵(han)】