免费菠萝视频app下载

12月11日，國家電(dian)網(wang)公(gong)司重大科技示范工(gong)程、江蘇南京220千(qian)伏西環網(wang)UPFC（Unified Power Flow Controller 統一潮流控制器）工(gong)程順(shun)利(li)投運(yun)。這是我國首個(ge)自主知識產權的UPFC工(gong)程，也是國際上首個(ge)使用模塊(kuai)化多電(dian)平換(huan)流（MMC）技術(shu)的UPFC工(gong)程，標志著全球能源互聯網(wang)最先進的柔(rou)(rou)性交(jiao)流輸電(dian)技術(shu)在(zai)江蘇率(lv)先落地，我國在(zai)柔(rou)(rou)性交(jiao)流輸電(dian)技術(shu)上走在(zai)了(le)世界最前(qian)列(lie)。

南(nan)京(jing)UPFC工(gong)程(cheng)于2015年(nian)4月獲得核(he)準，6月全(quan)面開工(gong)。工(gong)程(cheng)投(tou)資2.2億元，占地約(yue)18畝(mu)。工(gong)程(cheng)核(he)心設(she)(she)備是3個直流(liu)側(ce)(ce)并聯的電壓源換流(liu)器(qi)（VSC），直流(liu)側(ce)(ce)額定(ding)(ding)電壓±18千(qian)(qian)伏，額定(ding)(ding)電流(liu)1.1千(qian)(qian)安(an)，容量為(wei)2×6萬(wan)(wan)千(qian)(qian)伏安(an)（串聯側(ce)(ce)）+6萬(wan)(wan)千(qian)(qian)伏安(an)（并聯側(ce)(ce)）。工(gong)程(cheng)業主單位為(wei)國網江蘇省(sheng)電力公(gong)司，成套設(she)(she)備供應商(shang)為(wei)南(nan)京(jing)南(nan)瑞繼保(bao)電氣有限(xian)公(gong)司，設(she)(she)計單位為(wei)中能(neng)建江蘇省(sheng)電力設(she)(she)計院(yuan)。

11日9時28分，隨(sui)著UPFC裝(zhuang)(zhuang)置并入南(nan)(nan)京電網(wang)，南(nan)(nan)京220千伏(fu)曉莊至鐵北雙(shuang)線輸送功(gong)率實現(xian)精準(zhun)控(kong)(kong)制，實現(xian)預(yu)設(she)調控(kong)(kong)目標12萬千瓦。國(guo)家(jia)(jia)電網(wang)公(gong)司總(zong)經理助理張(zhang)麗英宣布南(nan)(nan)京西環網(wang)UPFC工程投運成功(gong)。該(gai)工程充分展示了國(guo)家(jia)(jia)電網(wang)公(gong)司的科技創新能(neng)力，標志著公(gong)司智能(neng)電網(wang)高(gao)端(duan)裝(zhuang)(zhuang)備(bei)研(yan)制水平邁上了新臺階(jie)，實現(xian)了“中國(guo)制造”和“中國(guo)引領”。

UPFC作為柔(rou)性交流輸電(dian)(dian)(dian)(dian)技(ji)(ji)術(shu)的(de)集大(da)成者，代表著未來(lai)電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)子(zi)技(ji)(ji)術(shu)的(de)發(fa)展方向。一直以來(lai)，世(shi)界各國廣泛關(guan)注(zhu)，進(jin)行了(le)重(zhong)點研究。UPFC針(zhen)對常規電(dian)(dian)(dian)(dian)網建設、改造和(he)運行中難以解(jie)決(jue)的(de)潮流控制、供電(dian)(dian)(dian)(dian)能力提升(sheng)等難題，通過大(da)功率電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)子(zi)技(ji)(ji)術(shu)的(de)應(ying)用(yong)，使電(dian)(dian)(dian)(dian)網潮流由自然分布(bu)轉變(bian)為智能化靈活(huo)控制，在(zai)保持現(xian)有(you)網架結構不變(bian)、不新建輸電(dian)(dian)(dian)(dian)通道的(de)前提下，有(you)效(xiao)解(jie)決(jue)這(zhe)些問(wen)題。UPFC適用(yong)于經(jing)濟發(fa)達(da)地區城市電(dian)(dian)(dian)(dian)網供電(dian)(dian)(dian)(dian)能力的(de)提升(sheng)，以及現(xian)有(you)電(dian)(dian)(dian)(dian)網的(de)挖(wa)潛增效(xiao)，是(shi)構建智能電(dian)(dian)(dian)(dian)網的(de)重(zhong)要技(ji)(ji)術(shu)手段(duan)，具有(you)廣泛的(de)應(ying)用(yong)價值。

國(guo)(guo)家電(dian)(dian)網公(gong)司是(shi)(shi)國(guo)(guo)內首家掌握UPFC關(guan)鍵技(ji)術(shu)(shu)的企業，南京西環網工(gong)程(cheng)是(shi)(shi)除美(mei)國(guo)(guo)、韓國(guo)(guo)外，全球(qiu)第三個投入商業運(yun)營的UPFC工(gong)程(cheng)，并且比前兩個國(guo)(guo)家技(ji)術(shu)(shu)更先進。工(gong)程(cheng)攻克(ke)了UPFC系(xi)(xi)統(tong)仿真、交(jiao)流系(xi)(xi)統(tong)和換(huan)流器電(dian)(dian)氣設計、設備參數(shu)選(xuan)型、保(bao)護控(kong)制策略等UPFC成套(tao)設計技(ji)術(shu)(shu)難(nan)題(ti)；突破了多換(huan)流器靈(ling)活拓撲結構(gou)、高(gao)壓(ya)大容量串(chuan)聯變(bian)壓(ya)器、大電(dian)(dian)流晶閘(zha)管(guan)旁(pang)路開關(guan)（TBS）快速保(bao)護、雙線有功無功解耦控(kong)制等核心技(ji)術(shu)(shu)；研制出(chu)包括(kuo)控(kong)制保(bao)護系(xi)(xi)統(tong)、電(dian)(dian)壓(ya)源型換(huan)流閥(fa)及(ji)閥(fa)控(kong)系(xi)(xi)統(tong)、晶閘(zha)管(guan)旁(pang)路開關(guan)、串(chuan)聯變(bian)壓(ya)器等核心設備的成套(tao)裝(zhuang)置，具有完(wan)全自主知(zhi)識產權，標志著我國(guo)(guo)已占領當今(jin)電(dian)(dian)力(li)電(dian)(dian)子技(ji)術(shu)(shu)應用(yong)的制高(gao)點，從本(ben)質上提升了我國(guo)(guo)智能電(dian)(dian)網相關(guan)技(ji)術(shu)(shu)、產品的國(guo)(guo)際(ji)競(jing)爭力(li)。

正是基于(yu)UPFC在電(dian)(dian)(dian)網(wang)潮流智能靈活控制方(fang)面的(de)優勢，國(guo)(guo)家(jia)電(dian)(dian)(dian)網(wang)公(gong)司決定(ding)在南京實(shi)施UPFC工(gong)程(cheng)(cheng)，以(yi)解決城(cheng)市供(gong)電(dian)(dian)(dian)走廊建(jian)設十分困(kun)難(nan)而(er)導致供(gong)電(dian)(dian)(dian)能力(li)受(shou)限難(nan)題，積(ji)極(ji)服務南京西部核心負荷(he)區發(fa)展。從項(xiang)目開工(gong)到最終投運，工(gong)程(cheng)(cheng)歷時(shi)6個(ge)月(yue)，比類(lei)似(si)工(gong)程(cheng)(cheng)工(gong)期(qi)縮(suo)短(duan)50%以(yi)上。在建(jian)設過程(cheng)(cheng)中(zhong)，國(guo)(guo)網(wang)江蘇電(dian)(dian)(dian)力(li)在國(guo)(guo)家(jia)電(dian)(dian)(dian)網(wang)公(gong)司的(de)統一(yi)(yi)領導下，充分發(fa)揮特高壓工(gong)程(cheng)(cheng)建(jian)設經驗，與眾多參建(jian)單位一(yi)(yi)起，加強協(xie)同創新，克服工(gong)期(qi)緊、系(xi)統復雜、技(ji)術難(nan)度大等困(kun)難(nan)，全(quan)力(li)推進(jin)技(ji)術創新，實(shi)施全(quan)過程(cheng)(cheng)標準化建(jian)設管理，高標準完成了工(gong)程(cheng)(cheng)建(jian)設任務。

南京西環網(wang)(wang)(wang)UPFC示范工程的(de)成功投運，實現(xian)了(le)南京城市(shi)西部核(he)心區(qu)(qu)電力(li)傳(chuan)輸的(de)精準控制，提升該區(qu)(qu)域供電能力(li)30%以(yi)上(shang)，為地區(qu)(qu)經(jing)(jing)濟社(she)會發展提供了(le)堅強的(de)電能保障(zhang)。同時，該工程將顯著提高電網(wang)(wang)(wang)的(de)整體科技含量，推(tui)動(dong)我(wo)國(guo)(guo)電網(wang)(wang)(wang)從(cong)傳(chuan)統電網(wang)(wang)(wang)向安全、高效、經(jing)(jing)濟、清潔、互動(dong)現(xian)代(dai)電網(wang)(wang)(wang)的(de)升級和跨越，為柔性(xing)交流輸電技術在我(wo)國(guo)(guo)的(de)大(da)規模推(tui)廣起到很好的(de)示范作用。