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日前，從鞍山鋼鐵(tie)第(di)二發電廠(chang)獲悉，在最近(jin)一次CCPP機組(zu)大修中，該(gai)廠(chang)通過自主攻關(guan)，首(shou)次完(wan)成以該(gai)廠(chang)為(wei)主、外方技(ji)術服(fu)務為(wei)輔的勵磁(ci)系(xi)統(tong)靜(jing)態和動態試(shi)驗，解決了CCPP機組(zu)長期(qi)勵磁(ci)系(xi)統(tong)試(shi)驗困難的問題，并填(tian)補該(gai)廠(chang)勵磁(ci)系(xi)統(tong)試(shi)驗的部(bu)分空(kong)白(bai)。

CCPP發電(dian)機組(zu)主(zhu)要依靠電(dian)磁(ci)感應產(chan)生電(dian)流(liu)，勵(li)磁(ci)系(xi)統(tong)作為提供勵(li)磁(ci)電(dian)流(liu)的(de)(de)(de)重要系(xi)統(tong)，工(gong)作狀態(tai)直接(jie)影(ying)響發電(dian)水(shui)平。根據(ju)電(dian)力系(xi)統(tong)相關(guan)規程規定，機組(zu)勵(li)磁(ci)系(xi)統(tong)試(shi)驗(yan)(yan)應配合機組(zu)大(da)修進(jin)行(xing)。由于該廠CCPP機組(zu)是從國外引進(jin)的(de)(de)(de)電(dian)機產(chan)品(pin)，與之配套的(de)(de)(de)勵(li)磁(ci)系(xi)統(tong)也為外方(fang)配套產(chan)品(pin)，系(xi)統(tong)試(shi)驗(yan)(yan)對機組(zu)各工(gong)況要求條件都非常嚴格且繁(fan)瑣，在機組(zu)投產(chan)后的(de)(de)(de)歷次大(da)修中該廠多次嘗(chang)試(shi)對勵(li)磁(ci)系(xi)統(tong)進(jin)行(xing)靜態(tai)和動態(tai)試(shi)驗(yan)(yan)，但僅能完成部(bu)分項目。

今年年初(chu)，該廠(chang)CCPP機(ji)組(zu)(zu)進行(xing)(xing)大修，電氣繼電保護(hu)專(zhuan)業組(zu)(zu)織技術骨干成立攻關小(xiao)組(zu)(zu)繼續嘗試(shi)對(dui)勵磁(ci)(ci)系(xi)(xi)(xi)統(tong)(tong)進行(xing)(xing)試(shi)驗(yan)(yan)(yan)。通過(guo)總結以往試(shi)驗(yan)(yan)(yan)經驗(yan)(yan)(yan)，全面梳(shu)理電氣圖紙后，他(ta)們將電氣、熱(re)工、集控運(yun)行(xing)(xing)等(deng)各(ge)個專(zhuan)業整合在一起，發(fa)揮各(ge)自(zi)優勢(shi)和特(te)長開展試(shi)驗(yan)(yan)(yan)。他(ta)們通過(guo)分(fen)析機(ji)組(zu)(zu)啟(qi)動(dong)(dong)條件，明(ming)確了(le)系(xi)(xi)(xi)統(tong)(tong)跳(tiao)、合閘命令邏輯的(de)(de)先后順序，找到了(le)控制(zhi)系(xi)(xi)(xi)統(tong)(tong)檢測(ce)下滿足各(ge)種(zhong)工況試(shi)驗(yan)(yan)(yan)的(de)(de)所有(you)條件。此次試(shi)驗(yan)(yan)(yan)過(guo)程中，他(ta)們對(dui)勵磁(ci)(ci)系(xi)(xi)(xi)統(tong)(tong)進行(xing)(xing)了(le)假負載試(shi)驗(yan)(yan)(yan)、手動(dong)(dong)起勵試(shi)驗(yan)(yan)(yan)、自(zi)動(dong)(dong)起勵試(shi)驗(yan)(yan)(yan)、階躍試(shi)驗(yan)(yan)(yan)等(deng)靜態和動(dong)(dong)態試(shi)驗(yan)(yan)(yan)。試(shi)驗(yan)(yan)(yan)結果證明(ming)該廠(chang)勵磁(ci)(ci)系(xi)(xi)(xi)統(tong)(tong)性能良好可靠(kao)，為(wei)機(ji)組(zu)(zu)的(de)(de)安全穩定運(yun)行(xing)(xing)提(ti)供(gong)了(le)有(you)力保障。