發布時間：2018-03-30
電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)之間的互(hu)聯是世界各國(guo)(guo)發(fa)展電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)的主要(yao)經驗，跨區聯網(wang)(wang)和(he)跨國(guo)(guo)聯網(wang)(wang)是實現更(geng)大(da)(da)范圍內能源(yuan)資源(yuan)優(you)化配置(zhi)和(he)提高(gao)電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)整體經濟效益的重要(yao)途徑(jing)。互(hu)聯電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)作(zuo)為一個動(dong)態(tai)(tai)平(ping)衡系(xi)統，故(gu)障(zhang)(zhang)發(fa)生(sheng)時，原有(you)平(ping)衡被打破，故(gu)障(zhang)(zhang)能量(liang)瞬間傳至(zhi)整個電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)，系(xi)統狀(zhuang)態(tai)(tai)迅速惡化，防御不當將導(dao)致故(gu)障(zhang)(zhang)范圍迅速擴大(da)(da)，甚至(zhi)發(fa)生(sheng)大(da)(da)停(ting)(ting)電(dian)(dian)(dian)(dian)(dian)(dian)。據統計，21世紀(ji)發(fa)生(sheng)的負荷損失(shi)超過300萬千瓦的大(da)(da)停(ting)(ting)電(dian)(dian)(dian)(dian)(dian)(dian)事故(gu)中(zhong)，90%以(yi)上與故(gu)障(zhang)(zhang)后動(dong)態(tai)(tai)過程中(zhong)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)斷(duan)面(mian)連(lian)鎖斷(duan)開和(he)受端電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)崩潰相(xiang)關(guan)，造成的總經濟損失(shi)超過1000億(yi)美元。與國(guo)(guo)外相(xiang)比(bi)，我國(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)規模、輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)距離(li)、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)等級均居世界第(di)一，電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)運行(xing)面(mian)臨的輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)安全(quan)運行(xing)、電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)穩(wen)定等問題更(geng)為嚴峻，建立可靠的互(hu)聯電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)(wang)動(dong)態(tai)(tai)過程安全(quan)防御體系(xi)成為亟需解決的任務。
國(guo)家(jia)電(dian)(dian)(dian)(dian)(dian)網(wang)所屬中(zhong)國(guo)電(dian)(dian)(dian)(dian)(dian)力(li)(li)科學研(yan)究院歷時14年，一是(shi)建立了(le)電(dian)(dian)(dian)(dian)(dian)力(li)(li)系(xi)(xi)統強迫振蕩理論，攻克了(le)輸電(dian)(dian)(dian)(dian)(dian)斷面動(dong)態(tai)(tai)(tai)功率分析與控(kong)制(zhi)(zhi)技術(shu)，研(yan)制(zhi)(zhi)出分類分時聯合控(kong)制(zhi)(zhi)系(xi)(xi)統，解決了(le)輸電(dian)(dian)(dian)(dian)(dian)斷面功率波動(dong)和振蕩“預測、辨(bian)識、定(ding)(ding)(ding)位、控(kong)制(zhi)(zhi)”4項難題；二是(shi)突破(po)了(le)受端電(dian)(dian)(dian)(dian)(dian)網(wang)全(quan)過(guo)(guo)程電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)穩(wen)定(ding)(ding)(ding)評(ping)(ping)估(gu)與控(kong)制(zhi)(zhi)技術(shu)，制(zhi)(zhi)定(ding)(ding)(ding)了(le)我國(guo)首(shou)個電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)穩(wen)定(ding)(ding)(ding)評(ping)(ping)價標準，研(yan)制(zhi)(zhi)出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)穩(wen)定(ding)(ding)(ding)全(quan)過(guo)(guo)程防控(kong)系(xi)(xi)統，提出了(le)國(guo)家(jia)電(dian)(dian)(dian)(dian)(dian)網(wang)動(dong)態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)支(zhi)撐能力(li)(li)提升(sheng)方(fang)案，大幅提升(sheng)電(dian)(dian)(dian)(dian)(dian)網(wang)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)穩(wen)定(ding)(ding)(ding)水平；三是(shi)研(yan)發出世界(jie)首(shou)套“毫秒級(ji)-秒級(ji)-分鐘級(ji)”多時間(jian)尺度統一仿真的(de)電(dian)(dian)(dian)(dian)(dian)力(li)(li)系(xi)(xi)統全(quan)過(guo)(guo)程動(dong)態(tai)(tai)(tai)仿真軟件，實現了(le)國(guo)家(jia)電(dian)(dian)(dian)(dian)(dian)網(wang)（約50000節點）數(shu)十分鐘乃至數(shu)小時動(dong)態(tai)(tai)(tai)過(guo)(guo)程的(de)準確(que)仿真。
該項目(mu)產生直接經濟效益11.6億元(yuan)，成(cheng)(cheng)果應(ying)(ying)(ying)用(yong)(yong)于34個省級及以上電(dian)(dian)網規(gui)劃調度運(yun)行，有(you)力保障了西南(nan)水電(dian)(dian)大規(gui)模送出，近三(san)年減少長(chang)江(jiang)上游棄(qi)水電(dian)(dian)量533億千(qian)瓦時。成(cheng)(cheng)果應(ying)(ying)(ying)用(yong)(yong)于22個輸電(dian)(dian)工程、45套動態無功補償設(she)備，累計提(ti)升(sheng)(sheng)輸電(dian)(dian)能(neng)力約1600萬千(qian)瓦。成(cheng)(cheng)果還應(ying)(ying)(ying)用(yong)(yong)于巴西、葡萄牙等(deng)國家的(de)電(dian)(dian)網安全分析中，大幅提(ti)升(sheng)(sheng)我國在(zai)相關(guan)領域的(de)國際影響力。