文章來源:中(zhong)國南方電網(wang)有限責任公司 發布(bu)時間:2010-09-10
近期,受經濟回暖以及持續高溫天氣等因素影響,南方地區用電需求不斷增長,電網負荷節節攀升。9月8日,南方電網統調負荷今年第8次創歷史新高,達9560萬千瓦,比去年最高負荷增長7.9%。同日,廣西電網統調負荷第14次創新高,達1169萬千瓦,比去年最高負荷增長16.2%;貴州電網統調負荷第8次創新高,達1139萬千瓦,比去年最高負荷增長8.9%。
日前,南方(fang)電(dian)(dian)(dian)網(wang)(wang)公司正按(an)照2009年(nian)迎峰度夏調(diao)度運行方(fang)案全(quan)力(li)做(zuo)好(hao)保(bao)供電(dian)(dian)(dian)各項(xiang)工作。加強發電(dian)(dian)(dian)側(ce)和(he)需求側(ce)管(guan)理,快(kuai)速(su)靈活調(diao)度,確保(bao)了(le)電(dian)(dian)(dian)網(wang)(wang)安(an)全(quan)“可控(kong)、在控(kong)”,在負荷連續攀升之際(ji)保(bao)障了(le)電(dian)(dian)(dian)力(li)有(you)序供應。截至9月8日,主(zhu)網(wang)(wang)未發生(sheng)穩定破壞、大(da)面(mian)積停電(dian)(dian)(dian)事(shi)故(gu)及功率振蕩事(shi)件,主(zhu)要(yao)運行指標(biao)保(bao)持較(jiao)好(hao)水(shui)(shui)平,全(quan)網(wang)(wang)500千伏平均(jun)電(dian)(dian)(dian)壓合格率同(tong)比(bi)提(ti)高(gao)(gao)0.0414個(ge)百分點,±0.1Hz頻率越限時間(jian)同(tong)比(bi)大(da)幅減少(shao)1034秒,220千伏及以上系統故(gu)障快(kuai)速(su)切除率100%。全(quan)網(wang)(wang)統調(diao)發受電(dian)(dian)(dian)量3767億(yi)千瓦(wa)時,同(tong)比(bi)增長(chang)2.1%,單月同(tong)比(bi)由1月份的(de)-16.6%提(ti)高(gao)(gao)到8月份的(de)12.8%,呈逐步回升態勢;水(shui)(shui)電(dian)(dian)(dian)優化調(diao)度成效顯著,全(quan)網(wang)(wang)水(shui)(shui)電(dian)(dian)(dian)發電(dian)(dian)(dian)量1031億(yi)千瓦(wa)時,同(tong)比(bi)增長(chang)17.2%;西電(dian)(dian)(dian)送廣東電(dian)(dian)(dian)量743億(yi)千瓦(wa)時,同(tong)比(bi)增長(chang)27.2%。