文章(zhang)來源(yuan):國家電網公司 發(fa)布(bu)時間:2011-11-18
11月11日(ri),西北電(dian)(dian)網外送(song)電(dian)(dian)量(liang)達到1.051億(yi)千(qian)瓦(wa)(wa)時,單日(ri)外送(song)電(dian)(dian)量(liang)首次(ci)突破(po)1億(yi)千(qian)瓦(wa)(wa)時大(da)關,外送(song)最大(da)負荷達511萬千(qian)瓦(wa)(wa),占目前西北外送(song)總容量(liang)的83.63%,日(ri)外送(song)電(dian)(dian)量(liang)和外送(song)負荷均(jun)創(chuang)歷史新高。
隨著寧東—山東±660千(qian)伏直(zhi)流輸電(dian)示范工(gong)程順利投入(ru)試(shi)運行,西(xi)(xi)北電(dian)網(wang)外送(song)最大(da)容量(liang)達(da)到611萬千(qian)瓦,西(xi)(xi)北外向型、送(song)出(chu)型、規(gui)模(mo)型堅強(qiang)送(song)端(duan)電(dian)網(wang)已(yi)初具規(gui)模(mo),實現西(xi)(xi)北—華(hua)北、西(xi)(xi)北—華(hua)中聯網(wang),將黃河上游水電(dian)、煤(mei)電(dian)基地火電(dian)打(da)捆送(song)往四川、山東,有力(li)推進西(xi)(xi)北能源資(zi)源在更大(da)范圍內優化配置,為緩(huan)解(jie)冬季(ji)華(hua)中、華(hua)北電(dian)網(wang)缺電(dian)局面提供了強(qiang)大(da)的電(dian)力(li)支(zhi)撐(cheng)。
為應對外送(song)負(fu)荷(he)和網(wang)(wang)內用電負(fu)荷(he)高峰(feng)(feng)的到來,確保迎峰(feng)(feng)度(du)冬和大負(fu)荷(he)外送(song)期間電網(wang)(wang)安全(quan)穩定運行,西北電網(wang)(wang)有限公司(si)加(jia)快(kuai)全(quan)網(wang)(wang)檢修和設備投(tou)產速度(du),目前已(yi)實現(xian)750千伏統一(yi)電網(wang)(wang)覆蓋西北五省(區),強(qiang)化了西北送(song)端(duan)網(wang)(wang)架結構。
西北公司還指導主要火(huo)電(dian)(dian)發(fa)電(dian)(dian)企業簽訂了(le)年利(li)用(yong)5000小時以(yi)上的中長(chang)期(qi)合同(tong),以(yi)黃河(he)富余水(shui)電(dian)(dian)進(jin)行短(duan)期(qi)調(diao)節,充分發(fa)揮“電(dian)(dian)量(liang)庫”交(jiao)易機制,提(ti)前(qian)做(zuo)好(hao)外送(song)電(dian)(dian)力(li)電(dian)(dian)量(liang)組織工作(zuo)。同(tong)時,密切關注天(tian)氣變(bian)化,提(ti)高負(fu)荷預(yu)測的準(zhun)確性,合理安(an)排機組開機方式,加大電(dian)(dian)煤儲運工作(zuo)力(li)度,提(ti)前(qian)落實全(quan)網發(fa)用(yong)電(dian)(dian)平衡。此外,西北公司還將440萬千(qian)瓦火(huo)電(dian)(dian)裝機列入外送(song)裝機序列,協調(diao)西北區域內(nei)主要水(shui)、火(huo)電(dian)(dian)廠留足備用(yong)容量(liang),提(ti)前(qian)做(zuo)好(hao)電(dian)(dian)力(li)電(dian)(dian)量(liang)平衡工作(zuo)。