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日前(qian)，從鞍山(shan)鋼鐵(tie)第二(er)發電廠(chang)獲悉，在最近(jin)一次CCPP機(ji)(ji)組(zu)大修中(zhong)，該(gai)(gai)廠(chang)通過自主(zhu)攻(gong)關(guan)，首(shou)次完成以(yi)該(gai)(gai)廠(chang)為主(zhu)、外方技術服務(wu)為輔的(de)勵(li)(li)(li)磁(ci)系統靜態和動態試驗(yan)，解決了(le)CCPP機(ji)(ji)組(zu)長期(qi)勵(li)(li)(li)磁(ci)系統試驗(yan)困難(nan)的(de)問題，并填補該(gai)(gai)廠(chang)勵(li)(li)(li)磁(ci)系統試驗(yan)的(de)部分空白。

CCPP發電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)組(zu)(zu)(zu)主(zhu)要(yao)依(yi)靠(kao)電(dian)(dian)(dian)(dian)(dian)磁感應產生(sheng)電(dian)(dian)(dian)(dian)(dian)流，勵(li)磁系統(tong)(tong)(tong)(tong)作(zuo)為提供勵(li)磁電(dian)(dian)(dian)(dian)(dian)流的(de)重要(yao)系統(tong)(tong)(tong)(tong)，工作(zuo)狀態(tai)直接影響發電(dian)(dian)(dian)(dian)(dian)水平。根(gen)據電(dian)(dian)(dian)(dian)(dian)力(li)系統(tong)(tong)(tong)(tong)相關規(gui)程規(gui)定，機(ji)(ji)組(zu)(zu)(zu)勵(li)磁系統(tong)(tong)(tong)(tong)試驗應配(pei)(pei)合(he)機(ji)(ji)組(zu)(zu)(zu)大(da)修(xiu)進(jin)行。由于該廠CCPP機(ji)(ji)組(zu)(zu)(zu)是從(cong)國外引(yin)進(jin)的(de)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)產品，與之配(pei)(pei)套(tao)的(de)勵(li)磁系統(tong)(tong)(tong)(tong)也為外方(fang)配(pei)(pei)套(tao)產品，系統(tong)(tong)(tong)(tong)試驗對機(ji)(ji)組(zu)(zu)(zu)各工況(kuang)要(yao)求條件都非常嚴格且繁瑣，在機(ji)(ji)組(zu)(zu)(zu)投產后的(de)歷次(ci)大(da)修(xiu)中該廠多次(ci)嘗(chang)試對勵(li)磁系統(tong)(tong)(tong)(tong)進(jin)行靜態(tai)和動態(tai)試驗，但僅能(neng)完成(cheng)部分項目。

今年年初，該(gai)廠CCPP機組(zu)進(jin)行(xing)(xing)大修，電(dian)氣(qi)繼電(dian)保護專(zhuan)業組(zu)織(zhi)技術骨干成立攻(gong)關(guan)小組(zu)繼續嘗試(shi)(shi)對勵(li)磁(ci)系統進(jin)行(xing)(xing)試(shi)(shi)驗(yan)(yan)(yan)(yan)。通過(guo)總(zong)結以往試(shi)(shi)驗(yan)(yan)(yan)(yan)經驗(yan)(yan)(yan)(yan)，全面梳(shu)理電(dian)氣(qi)圖(tu)紙后，他們將(jiang)電(dian)氣(qi)、熱工、集控(kong)(kong)運(yun)行(xing)(xing)等各(ge)個專(zhuan)業整合(he)在(zai)一(yi)起，發揮各(ge)自優勢(shi)和特長開展試(shi)(shi)驗(yan)(yan)(yan)(yan)。他們通過(guo)分(fen)析機組(zu)啟動(dong)條件(jian)，明確了(le)(le)系統跳、合(he)閘命令邏(luo)輯(ji)的先后順序，找到了(le)(le)控(kong)(kong)制系統檢(jian)測(ce)下滿(man)足(zu)各(ge)種(zhong)工況試(shi)(shi)驗(yan)(yan)(yan)(yan)的所有條件(jian)。此(ci)次試(shi)(shi)驗(yan)(yan)(yan)(yan)過(guo)程中，他們對勵(li)磁(ci)系統進(jin)行(xing)(xing)了(le)(le)假負載試(shi)(shi)驗(yan)(yan)(yan)(yan)、手動(dong)起勵(li)試(shi)(shi)驗(yan)(yan)(yan)(yan)、自動(dong)起勵(li)試(shi)(shi)驗(yan)(yan)(yan)(yan)、階躍試(shi)(shi)驗(yan)(yan)(yan)(yan)等靜態和動(dong)態試(shi)(shi)驗(yan)(yan)(yan)(yan)。試(shi)(shi)驗(yan)(yan)(yan)(yan)結果證明該(gai)廠勵(li)磁(ci)系統性能(neng)良好可(ke)靠，為(wei)機組(zu)的安全穩定運(yun)行(xing)(xing)提供(gong)了(le)(le)有力(li)保障。