文(wen)章來源:國家(jia)電(dian)網公司 發(fa)布時(shi)間:2010-05-19
今夏(xia)汛期(qi),總裝(zhuang)機(ji)1820萬千(qian)瓦的(de)(de)三(san)(san)峽(xia)水電(dian)(dian)(dian)站將迎來26臺機(ji)組全(quan)(quan)面(mian)投產(chan)后的(de)(de)首次(ci)滿(man)(man)發(fa)(fa)。作為(wei)(wei)世界上裝(zhuang)機(ji)規模最大的(de)(de)水電(dian)(dian)(dian)站,其滿(man)(man)發(fa)(fa)狀態下的(de)(de)電(dian)(dian)(dian)力輸送(song)將對電(dian)(dian)(dian)網(wang)(wang)產(chan)生(sheng)極大影響。為(wei)(wei)確(que)保三(san)(san)峽(xia)電(dian)(dian)(dian)站滿(man)(man)發(fa)(fa)下的(de)(de)電(dian)(dian)(dian)力輸送(song),應對今夏(xia)華中電(dian)(dian)(dian)網(wang)(wang)大負(fu)荷運行方式下的(de)(de)新(xin)(xin)情況、新(xin)(xin)變(bian)化,5月13日(ri),華中電(dian)(dian)(dian)網(wang)(wang)有限公司(si)電(dian)(dian)(dian)力調度中心舉(ju)行了一場專項反事故演習(xi),為(wei)(wei)確(que)保汛期(qi)大電(dian)(dian)(dian)網(wang)(wang)安全(quan)(quan)運行做好了調度準備。
據介紹,在(zai)三(san)(san)峽(xia)電(dian)(dian)站(zhan)滿(man)發情(qing)(qing)況下,三(san)(san)峽(xia)電(dian)(dian)力(li)外送重要樞紐500千伏江(jiang)陵(ling)變電(dian)(dian)站(zhan)短(duan)路電(dian)(dian)流超標問題將十分(fen)突(tu)出,而從硬件(jian)配備上(shang),江(jiang)陵(ling)變電(dian)(dian)站(zhan)短(duan)路電(dian)(dian)流開(kai)關已(yi)經是最高配置,無法(fa)更換。為(wei)此,華(hua)中(zhong)公(gong)司(si)從改變電(dian)(dian)網(wang)(wang)結構上(shang)想辦法(fa)。華(hua)中(zhong)電(dian)(dian)力(li)調(diao)(diao)度(du)中(zhong)心配合(he)國家電(dian)(dian)力(li)調(diao)(diao)度(du)通信(xin)中(zhong)心,進行了大量(liang)的分(fen)析(xi)計(ji)算,在(zai)最大限度(du)消(xiao)除對電(dian)(dian)網(wang)(wang)安全(quan)穩定水平影(ying)響的情(qing)(qing)況下,針對三(san)(san)峽(xia)機組在(zai)開(kai)啟21臺及(ji)以(yi)(yi)下、22~23臺、24臺及(ji)以(yi)(yi)上(shang)三(san)(san)種狀(zhuang)態下的電(dian)(dian)力(li)送出,為(wei)電(dian)(dian)網(wang)(wang)設(she)計(ji)了不同的運行方(fang)式。
據預測,華(hua)中電網將在(zai)6月底或7月初迎來三峽電站滿發的考驗。