文章來(lai)源：國家電網公(gong)司 發布時間：2012-05-19
近日(ri)，由(you)國(guo)(guo)(guo)家電(dian)(dian)(dian)網(wang)公(gong)司所屬國(guo)(guo)(guo)網(wang)電(dian)(dian)(dian)力(li)(li)科學(xue)研究(jiu)院研制(zhi)的(de)我國(guo)(guo)(guo)首(shou)套具有完(wan)全自主知(zhi)識產權(quan)的(de)700兆瓦(wa)級巨型水輪發電(dian)(dian)(dian)機組(zu)勵磁系統(tong)在三峽地下電(dian)(dian)(dian)站32號機組(zu)成功投(tou)運。該(gai)項目打破(po)(po)了長期(qi)以來國(guo)(guo)(guo)外企業的(de)技術(shu)(shu)壟斷，是(shi)繼(ji)實(shi)現700兆瓦(wa)級水電(dian)(dian)(dian)機組(zu)調速系統(tong)國(guo)(guo)(guo)產化后(hou)，在巨型水電(dian)(dian)(dian)機組(zu)領域取得的(de)又(you)一(yi)重(zhong)大(da)突破(po)(po)，至(zhi)此，國(guo)(guo)(guo)家電(dian)(dian)(dian)網(wang)已(yi)全面掌握了巨型水電(dian)(dian)(dian)機組(zu)的(de)核心控制(zhi)技術(shu)(shu)，為(wei)促進(jin)(jin)我國(guo)(guo)(guo)水電(dian)(dian)(dian)事業健康發展，進(jin)(jin)一(yi)步提(ti)升我國(guo)(guo)(guo)水電(dian)(dian)(dian)裝備制(zhi)造技術(shu)(shu)的(de)國(guo)(guo)(guo)際影響力(li)(li)，推(tui)動國(guo)(guo)(guo)產電(dian)(dian)(dian)氣裝備走向(xiang)國(guo)(guo)(guo)際市場提(ti)供(gong)了重(zhong)要技術(shu)(shu)支撐。該(gai)系統(tong)的(de)研制(zhi)成功，已(yi)迫(po)使(shi)進(jin)(jin)口同類設備平均價格下降近50%，經(jing)濟效益十分顯著。
發(fa)電(dian)(dian)機(ji)(ji)勵磁(ci)系(xi)統是發(fa)電(dian)(dian)機(ji)(ji)的(de)(de)核(he)心控(kong)制部分，為發(fa)電(dian)(dian)機(ji)(ji)轉子(zi)提(ti)供穩定(ding)磁(ci)場(chang)，具(ju)有(you)(you)維持機(ji)(ji)端(duan)電(dian)(dian)壓水(shui)(shui)平和調(diao)節發(fa)電(dian)(dian)機(ji)(ji)無功(gong)功(gong)率的(de)(de)重要功(gong)能(neng)，巨(ju)型水(shui)(shui)電(dian)(dian)機(ji)(ji)組勵磁(ci)系(xi)統控(kong)制機(ji)(ji)理復雜，其安全(quan)可(ke)靠(kao)性對(dui)(dui)發(fa)電(dian)(dian)機(ji)(ji)組安全(quan)運行和電(dian)(dian)網安全(quan)穩定(ding)影(ying)響極大。此(ci)前我國(guo)(guo)已投運的(de)(de)三(san)峽(xia)、小(xiao)灣、龍(long)灘、官地、拉西瓦等電(dian)(dian)站40余臺700兆瓦級(ji)水(shui)(shui)輪發(fa)電(dian)(dian)機(ji)(ji)組勵磁(ci)系(xi)統設備(bei)完全(quan)依賴進口，其核(he)心控(kong)制技(ji)(ji)術(shu)均(jun)(jun)掌握在國(guo)(guo)外(wai)企業(ye)手中，對(dui)(dui)我國(guo)(guo)水(shui)(shui)電(dian)(dian)事業(ye)的(de)(de)健(jian)康發(fa)展十分不利。國(guo)(guo)網電(dian)(dian)科院研制成(cheng)功(gong)的(de)(de)巨(ju)型水(shui)(shui)輪發(fa)電(dian)(dian)機(ji)(ji)組勵磁(ci)系(xi)統具(ju)有(you)(you)完全(quan)自主知識產(chan)權，總(zong)體技(ji)(ji)術(shu)水(shui)(shui)平達到國(guo)(guo)際先進，具(ju)有(you)(you)極強的(de)(de)市(shi)場(chang)競爭力，已迫使進口同(tong)類設備(bei)平均(jun)(jun)價(jia)格下降近50%，按照國(guo)(guo)家“十二五(wu)”水(shui)(shui)電(dian)(dian)發(fa)展規模初步測算，可(ke)為國(guo)(guo)家節省投資(zi)約2億(yi)元(yuan)，同(tong)時降低(di)了水(shui)(shui)電(dian)(dian)站運行維護成(cheng)本，經濟效(xiao)益十分顯著。