文章來源：中國能源建設集(ji)團有限公司 發布時間：2018-12-25
近日，中國(guo)能(neng)建(jian)江(jiang)蘇(su)(su)院(yuan)承(cheng)擔設(she)計(ji)的蘇(su)(su)州南部電網500千(qian)(qian)伏UPFC（統一潮流(liu)控(kong)制器）示(shi)范工程正式(shi)投運。該(gai)工程是目前世界上(shang)電壓等級最(zui)高(gao)、容量最(zui)大、控(kong)制最(zui)復雜(za)的UPFC工程，也是世界上(shang)首個500千(qian)(qian)伏電壓等級的雙回線路(lu)UPFC工程，將在世界范圍內首次實現500千(qian)(qian)伏電網電能(neng)流(liu)向的靈活、精準控(kong)制，最(zui)大可提(ti)升蘇(su)(su)州電網電能(neng)消納能(neng)力約(yue)130萬千(qian)(qian)瓦(wa)。
據稱(cheng)，該工程的投運，相(xiang)當(dang)于(yu)給蘇(su)(su)(su)(su)州南(nan)(nan)部電(dian)(dian)(dian)網(wang)加裝了一(yi)個“智(zhi)能(neng)(neng)(neng)(neng)導(dao)航系(xi)統”，實(shi)現(xian)(xian)了電(dian)(dian)(dian)能(neng)(neng)(neng)(neng)的“無人駕駛”。蘇(su)(su)(su)(su)州是我國用電(dian)(dian)(dian)負荷最大的地(di)(di)市，冬(dong)季枯水(shui)期，四川來的水(shui)電(dian)(dian)(dian)銳減，電(dian)(dian)(dian)力的主線路(lu)500千伏梅木(mu)線將處于(yu)過負荷狀(zhuang)態，地(di)(di)區(qu)(qu)(qu)將面臨停(ting)電(dian)(dian)(dian)風險；安裝UPFC后(hou)，它(ta)可(ke)(ke)(ke)以像電(dian)(dian)(dian)網(wang)的智(zhi)能(neng)(neng)(neng)(neng)導(dao)航系(xi)統一(yi)樣，將電(dian)(dian)(dian)網(wang)電(dian)(dian)(dian)能(neng)(neng)(neng)(neng)由自由分(fen)布狀(zhuang)態轉變為(wei)精(jing)確受控(kong)狀(zhuang)態，智(zhi)能(neng)(neng)(neng)(neng)匹配三條交流通道輸電(dian)(dian)(dian)功(gong)率，實(shi)現(xian)(xian)了電(dian)(dian)(dian)能(neng)(neng)(neng)(neng)的最優分(fen)布，提升蘇(su)(su)(su)(su)南(nan)(nan)地(di)(di)區(qu)(qu)(qu)供電(dian)(dian)(dian)能(neng)(neng)(neng)(neng)力130萬(wan)千瓦。相(xiang)比新建輸電(dian)(dian)(dian)線路(lu)等(deng)傳統解決“擁堵(du)”的方式(shi)，節約(yue)投資(zi)達(da)6億元。當(dang)蘇(su)(su)(su)(su)南(nan)(nan)地(di)(di)區(qu)(qu)(qu)出現(xian)(xian)大范圍電(dian)(dian)(dian)網(wang)故障時(shi)，UPFC可(ke)(ke)(ke)以提高三條交流線路(lu)輸送功(gong)率總和(he)，最大限度縮小(xiao)事(shi)故造(zao)成的停(ting)電(dian)(dian)(dian)范圍。此外(wai)，UPFC還可(ke)(ke)(ke)有效維持(chi)蘇(su)(su)(su)(su)南(nan)(nan)地(di)(di)區(qu)(qu)(qu)電(dian)(dian)(dian)壓水(shui)平(ping)，提高電(dian)(dian)(dian)網(wang)安全(quan)穩定運行水(shui)平(ping)。