文章來源：國家電網公司 發布時間：2012-05-19
近日，由國(guo)(guo)家電(dian)(dian)(dian)(dian)網(wang)(wang)公(gong)司所屬國(guo)(guo)網(wang)(wang)電(dian)(dian)(dian)(dian)力科學研究院研制的我國(guo)(guo)首(shou)套具有(you)完全(quan)自主知識產權的700兆瓦(wa)級巨(ju)型(xing)水(shui)輪(lun)發電(dian)(dian)(dian)(dian)機組(zu)勵(li)磁系(xi)統在(zai)三峽地下電(dian)(dian)(dian)(dian)站(zhan)32號機組(zu)成功投運。該(gai)項目打(da)破了(le)長(chang)期以來國(guo)(guo)外企業的技(ji)術壟(long)斷，是繼(ji)實現700兆瓦(wa)級水(shui)電(dian)(dian)(dian)(dian)機組(zu)調速系(xi)統國(guo)(guo)產化后(hou)，在(zai)巨(ju)型(xing)水(shui)電(dian)(dian)(dian)(dian)機組(zu)領域取(qu)得的又(you)一重(zhong)大突破，至此，國(guo)(guo)家電(dian)(dian)(dian)(dian)網(wang)(wang)已全(quan)面掌(zhang)握了(le)巨(ju)型(xing)水(shui)電(dian)(dian)(dian)(dian)機組(zu)的核心(xin)控制技(ji)術，為促進我國(guo)(guo)水(shui)電(dian)(dian)(dian)(dian)事(shi)業健康發展，進一步提(ti)升(sheng)我國(guo)(guo)水(shui)電(dian)(dian)(dian)(dian)裝(zhuang)備制造技(ji)術的國(guo)(guo)際影(ying)響力，推動(dong)國(guo)(guo)產電(dian)(dian)(dian)(dian)氣裝(zhuang)備走向國(guo)(guo)際市(shi)場提(ti)供了(le)重(zhong)要技(ji)術支撐。該(gai)系(xi)統的研制成功，已迫(po)使進口同類設(she)備平(ping)均價格下降近50%，經濟效(xiao)益十分(fen)顯(xian)著。
發(fa)(fa)(fa)電(dian)(dian)機勵(li)磁系統(tong)是發(fa)(fa)(fa)電(dian)(dian)機的(de)(de)核(he)心控(kong)制(zhi)(zhi)部(bu)分(fen)，為發(fa)(fa)(fa)電(dian)(dian)機轉子提供穩(wen)定磁場，具有維(wei)持機端電(dian)(dian)壓水(shui)(shui)平(ping)和(he)調(diao)節(jie)發(fa)(fa)(fa)電(dian)(dian)機無(wu)功功率的(de)(de)重要功能，巨(ju)(ju)型水(shui)(shui)電(dian)(dian)機組(zu)(zu)(zu)勵(li)磁系統(tong)控(kong)制(zhi)(zhi)機理復雜，其安(an)全可(ke)靠性對發(fa)(fa)(fa)電(dian)(dian)機組(zu)(zu)(zu)安(an)全運(yun)行和(he)電(dian)(dian)網(wang)安(an)全穩(wen)定影響極(ji)大。此前我國(guo)(guo)已投運(yun)的(de)(de)三峽、小灣、龍灘、官地、拉西瓦等電(dian)(dian)站(zhan)40余臺700兆瓦級水(shui)(shui)輪(lun)發(fa)(fa)(fa)電(dian)(dian)機組(zu)(zu)(zu)勵(li)磁系統(tong)設備完全依(yi)賴進口，其核(he)心控(kong)制(zhi)(zhi)技(ji)術均掌握在(zai)國(guo)(guo)外(wai)企業手中，對我國(guo)(guo)水(shui)(shui)電(dian)(dian)事業的(de)(de)健康發(fa)(fa)(fa)展十(shi)分(fen)不利。國(guo)(guo)網(wang)電(dian)(dian)科院(yuan)研制(zhi)(zhi)成功的(de)(de)巨(ju)(ju)型水(shui)(shui)輪(lun)發(fa)(fa)(fa)電(dian)(dian)機組(zu)(zu)(zu)勵(li)磁系統(tong)具有完全自(zi)主知(zhi)識(shi)產權，總體技(ji)術水(shui)(shui)平(ping)達(da)到國(guo)(guo)際先進，具有極(ji)強(qiang)的(de)(de)市場競爭力，已迫使進口同(tong)類設備平(ping)均價格下降近(jin)50%，按照國(guo)(guo)家“十(shi)二五(wu)”水(shui)(shui)電(dian)(dian)發(fa)(fa)(fa)展規模初步測(ce)算，可(ke)為國(guo)(guo)家節(jie)省投資約(yue)2億(yi)元，同(tong)時降低了水(shui)(shui)電(dian)(dian)站(zhan)運(yun)行維(wei)護成本，經濟效益十(shi)分(fen)顯著。