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11月16日，由中國電(dian)力科學研(yan)究(jiu)院牽頭承擔的“應(ying)(ying)對(dui)大停電(dian)的全過程(cheng)防(fang)控及應(ying)(ying)急(ji)恢(hui)復(fu)策(ce)略研(yan)究(jiu)”項目(mu)(mu)順(shun)利通(tong)過國家電(dian)網(wang)公司科技部驗收。項目(mu)(mu)成(cheng)果可有效(xiao)提升(sheng)電(dian)網(wang)的應(ying)(ying)急(ji)防(fang)控和快速恢(hui)復(fu)能力，具有實際可操作性和良(liang)好的推(tui)廣應(ying)(ying)用價值(zhi)。

我國電(dian)網(wang)(wang)未來交直流混聯(lian)、多FACTS接入、大規模新能源并網(wang)(wang)的復雜場景，亟待(dai)開展大停(ting)電(dian)發生機理、大停(ting)電(dian)緊(jin)急防控(kong)、停(ting)電(dian)后電(dian)網(wang)(wang)恢復過程中的設備(bei)安(an)全和系(xi)統安(an)全穩定等方(fang)面的深入研(yan)究。

項目(mu)通過(guo)對大(da)停(ting)電(dian)(dian)(dian)事故(gu)的(de)機(ji)理(li)分(fen)析、應急控(kong)制(zhi)(zhi)、恢復(fu)控(kong)制(zhi)(zhi)全(quan)(quan)過(guo)程(cheng)(cheng)研究，提(ti)出了(le)耦合支路(lu)介(jie)數和全(quan)(quan)過(guo)程(cheng)(cheng)動(dong)態(tai)(tai)仿真(zhen)相(xiang)結(jie)合的(de)大(da)停(ting)電(dian)(dian)(dian)故(gu)障集構(gou)建(jian)技術(shu)，實現了(le)大(da)停(ting)電(dian)(dian)(dian)長時間動(dong)態(tai)(tai)過(guo)程(cheng)(cheng)仿真(zhen)模擬；針對傳統(tong)的(de)電(dian)(dian)(dian)力系(xi)統(tong)狀(zhuang)(zhuang)(zhuang)態(tai)(tai)劃(hua)分(fen)指(zhi)標(biao)(biao)主要為定性(xing)判斷、缺乏定量指(zhi)導的(de)難(nan)(nan)題，提(ti)出一種基于(yu)熵值門檻的(de)電(dian)(dian)(dian)網(wang)(wang)(wang)(wang)(wang)從正常狀(zhuang)(zhuang)(zhuang)態(tai)(tai)至警戒狀(zhuang)(zhuang)(zhuang)態(tai)(tai)的(de)過(guo)渡評價指(zhi)標(biao)(biao)；針對現有電(dian)(dian)(dian)網(wang)(wang)(wang)(wang)(wang)安(an)全(quan)(quan)評估和預警系(xi)統(tong)在(zai)電(dian)(dian)(dian)網(wang)(wang)(wang)(wang)(wang)實際運行和故(gu)障應對時存在(zai)的(de)數據處(chu)理(li)和時滯難(nan)(nan)題，創(chuang)新了(le)電(dian)(dian)(dian)網(wang)(wang)(wang)(wang)(wang)在(zai)線保(bao)護和監(jian)控(kong)的(de)三道防(fang)線配(pei)置(zhi)及(ji)功能設置(zhi)，構(gou)建(jian)了(le)新一代電(dian)(dian)(dian)網(wang)(wang)(wang)(wang)(wang)安(an)全(quan)(quan)監(jian)控(kong)系(xi)統(tong)方案和控(kong)制(zhi)(zhi)結(jie)構(gou)，提(ti)出了(le)適應聯(lian)網(wang)(wang)(wang)(wang)(wang)/孤網(wang)(wang)(wang)(wang)(wang)條件下(xia)的(de)低頻減(jian)載(zai)/高頻切機(ji)及(ji)低壓(ya)減(jian)載(zai)措(cuo)施(shi)的(de)配(pei)置(zhi)原則(ze)和方案、超/特高壓(ya)電(dian)(dian)(dian)網(wang)(wang)(wang)(wang)(wang)恢復(fu)過(guo)程(cheng)(cheng)中啟動(dong)路(lu)徑(jing)的(de)優化選擇方法、電(dian)(dian)(dian)網(wang)(wang)(wang)(wang)(wang)重構(gou)恢復(fu)過(guo)程(cheng)(cheng)中面臨的(de)頻率穩(wen)定和電(dian)(dian)(dian)壓(ya)穩(wen)定的(de)風險點、基于(yu)兩級補救策略(lve)的(de)電(dian)(dian)(dian)力系(xi)統(tong)安(an)全(quan)(quan)穩(wen)定緊急控(kong)制(zhi)(zhi)方法等應對大(da)停(ting)電(dian)(dian)(dian)的(de)全(quan)(quan)過(guo)程(cheng)(cheng)防(fang)控(kong)及(ji)應急恢復(fu)策略(lve)。

項目(mu)研(yan)究(jiu)成果全面豐富了(le)應對大停電的電力(li)系(xi)統三(san)道防線策略體系(xi)，為(wei)有力(li)阻斷大停電事故發生提供了(le)堅強的技術支撐(cheng)。