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日前(qian)，從鞍山鋼鐵第二發電廠(chang)獲悉，在最近一(yi)次CCPP機組(zu)大(da)修(xiu)中(zhong)，該廠(chang)通過(guo)自主攻關，首次完成以(yi)該廠(chang)為主、外方技術服務為輔的勵磁(ci)(ci)系統(tong)靜態和動態試驗(yan)，解決了(le)CCPP機組(zu)長期勵磁(ci)(ci)系統(tong)試驗(yan)困難(nan)的問(wen)題，并填補該廠(chang)勵磁(ci)(ci)系統(tong)試驗(yan)的部分(fen)空白(bai)。

CCPP發(fa)(fa)電(dian)機(ji)組(zu)(zu)(zu)主要(yao)依靠電(dian)磁(ci)感應產生電(dian)流，勵(li)磁(ci)系統(tong)(tong)作為提供勵(li)磁(ci)電(dian)流的重(zhong)要(yao)系統(tong)(tong)，工(gong)作狀態(tai)(tai)直(zhi)接影(ying)響(xiang)發(fa)(fa)電(dian)水平(ping)。根據電(dian)力系統(tong)(tong)相關規程規定，機(ji)組(zu)(zu)(zu)勵(li)磁(ci)系統(tong)(tong)試(shi)(shi)驗應配(pei)(pei)合機(ji)組(zu)(zu)(zu)大修進(jin)行。由(you)于該廠(chang)CCPP機(ji)組(zu)(zu)(zu)是從(cong)國外引(yin)進(jin)的電(dian)機(ji)產品(pin)，與之配(pei)(pei)套的勵(li)磁(ci)系統(tong)(tong)也為外方(fang)配(pei)(pei)套產品(pin)，系統(tong)(tong)試(shi)(shi)驗對機(ji)組(zu)(zu)(zu)各工(gong)況要(yao)求條件(jian)都非常嚴格且(qie)繁瑣，在機(ji)組(zu)(zu)(zu)投產后的歷次(ci)大修中該廠(chang)多(duo)次(ci)嘗(chang)試(shi)(shi)對勵(li)磁(ci)系統(tong)(tong)進(jin)行靜態(tai)(tai)和動態(tai)(tai)試(shi)(shi)驗，但僅能(neng)完成部分項目(mu)。

今年(nian)年(nian)初，該(gai)廠(chang)CCPP機組(zu)(zu)(zu)進(jin)行(xing)(xing)大(da)修，電氣(qi)繼電保(bao)護專業組(zu)(zu)(zu)織技術骨干成立攻(gong)關小(xiao)組(zu)(zu)(zu)繼續(xu)嘗試(shi)(shi)(shi)(shi)(shi)對(dui)勵(li)磁系(xi)統(tong)進(jin)行(xing)(xing)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)。通過總結以往(wang)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)經驗(yan)(yan)，全面梳理電氣(qi)圖紙后(hou)，他們(men)將(jiang)電氣(qi)、熱(re)工、集(ji)控運行(xing)(xing)等各(ge)個(ge)專業整合(he)在一起，發揮各(ge)自優(you)勢和特長開展試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)。他們(men)通過分析(xi)機組(zu)(zu)(zu)啟動(dong)(dong)條件(jian)，明確了系(xi)統(tong)跳、合(he)閘命令邏輯的(de)(de)先(xian)后(hou)順序，找到了控制系(xi)統(tong)檢測下滿足各(ge)種(zhong)工況試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)的(de)(de)所有(you)條件(jian)。此次試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)過程中，他們(men)對(dui)勵(li)磁系(xi)統(tong)進(jin)行(xing)(xing)了假(jia)負(fu)載試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)、手動(dong)(dong)起勵(li)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)、自動(dong)(dong)起勵(li)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)、階躍試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)等靜態和動(dong)(dong)態試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)。試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)結果證明該(gai)廠(chang)勵(li)磁系(xi)統(tong)性(xing)能良好可靠(kao)，為機組(zu)(zu)(zu)的(de)(de)安(an)全穩定運行(xing)(xing)提供了有(you)力保(bao)障。