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　　3月25日，國(guo)家電(dian)(dian)(dian)(dian)(dian)網(wang)公司所(suo)屬的(de)國(guo)家能源(yuan)大型風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)并網(wang)系統研(yan)發(fa)（實驗）中(zhong)心張北風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)試驗基(ji)地(di)(di)，順利完成1號風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)機組(zu)低電(dian)(dian)(dian)(dian)(dian)壓穿越測(ce)試的(de)所(suo)有測(ce)試項目(mu)。張北風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)試驗基(ji)地(di)(di)是目(mu)前(qian)國(guo)內唯一具備開展低電(dian)(dian)(dian)(dian)(dian)壓穿越試驗、可對風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)機組(zu)進行電(dian)(dian)(dian)(dian)(dian)網(wang)適應性檢測(ce)的(de)試驗基(ji)地(di)(di)。

　　低(di)(di)電(dian)(dian)(dian)(dian)壓穿越是指當電(dian)(dian)(dian)(dian)網(wang)(wang)故障或擾動引起風(feng)電(dian)(dian)(dian)(dian)場并網(wang)(wang)點的(de)電(dian)(dian)(dian)(dian)壓跌落(luo)時(shi)，在一(yi)定的(de)電(dian)(dian)(dian)(dian)壓跌落(luo)范(fan)圍內，風(feng)電(dian)(dian)(dian)(dian)機(ji)(ji)組(zu)能夠不(bu)間斷并網(wang)(wang)運(yun)行(xing)。在本次測(ce)試期(qi)間，技術人員分別嚴格測(ce)試了該機(ji)(ji)組(zu)在多重條件組(zu)合環(huan)境(jing)下的(de)低(di)(di)電(dian)(dian)(dian)(dian)壓穿越表現(xian)，包括(kuo)小功率輸出(chu)、大功率輸出(chu)、電(dian)(dian)(dian)(dian)網(wang)(wang)三相(xiang)短路(lu)(lu)、相(xiang)間短路(lu)(lu)以及(ji)不(bu)同(tong)電(dian)(dian)(dian)(dian)壓跌落(luo)深度（20%、35%、50%、75%和(he)90%）等20余種組(zu)合環(huan)境(jing)的(de)近百(bai)次測(ce)試。他(ta)們科(ke)學安(an)排測(ce)試計劃，嚴格遵守測(ce)試流程(cheng)，積極幫助制(zhi)造(zao)商調試和(he)改善風(feng)機(ji)(ji)性能。

　　風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)機組(zu)(zu)低電(dian)(dian)(dian)(dian)(dian)壓(ya)穿越能(neng)力包括三項重要指(zhi)標：風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)場(chang)并網(wang)(wang)點電(dian)(dian)(dian)(dian)(dian)壓(ya)跌至(zhi)20%標稱電(dian)(dian)(dian)(dian)(dian)壓(ya)時(shi)，風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)場(chang)內的(de)風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)機組(zu)(zu)能(neng)夠保證不(bu)脫網(wang)(wang)連(lian)續(xu)運行625毫秒(miao)(miao)；風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)場(chang)并網(wang)(wang)點電(dian)(dian)(dian)(dian)(dian)壓(ya)在(zai)(zai)發生跌落(luo)后2秒(miao)(miao)內能(neng)夠恢(hui)復(fu)到標稱電(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)90%時(shi)，風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)場(chang)內的(de)風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)機組(zu)(zu)能(neng)夠保證不(bu)脫網(wang)(wang)連(lian)續(xu)運行；風(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)機組(zu)(zu)有功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)在(zai)(zai)故(gu)障(zhang)清(qing)除后應(ying)快速恢(hui)復(fu)，自故(gu)障(zhang)清(qing)除時(shi)刻開(kai)始，能(neng)以至(zhi)少(shao)10％額(e)定功(gong)(gong)(gong)率(lv)秒(miao)(miao)的(de)功(gong)(gong)(gong)率(lv)變化率(lv)恢(hui)復(fu)至(zhi)故(gu)障(zhang)前(qian)的(de)值。

　　經(jing)各方(fang)共同(tong)努力，1號風電(dian)機組的(de)各項性能(neng)(neng)指標(biao)均滿(man)足(zu)國家電(dian)網公司企業標(biao)準(zhun)對(dui)低(di)(di)電(dian)壓穿越(yue)能(neng)(neng)力的(de)要求，順利通過了(le)風電(dian)機組低(di)(di)電(dian)壓穿越(yue)現場測試。