文章來源：國家電網公司 發布時(shi)間：2015-04-30
4月24日(ri)，江蘇省電(dian)(dian)(dian)力公司(si)電(dian)(dian)(dian)力科學研究(jiu)院應用(yong)“沿海(hai)大規(gui)模風電(dian)(dian)(dian)并(bing)網(wang)檢(jian)測與安(an)全運(yun)行關(guan)鍵技(ji)術及(ji)應用(yong)”科技(ji)項目研究(jiu)成果，順利完(wan)成了(le)(le)國(guo)(guo)華射陽（農牧(mu)公司(si)）4.95萬千瓦低風速風電(dian)(dian)(dian)場動態無(wu)(wu)功補償裝置的(de)性能檢(jian)測和(he)調試。國(guo)(guo)網(wang)江蘇電(dian)(dian)(dian)力深化沿海(hai)大規(gui)模風電(dian)(dian)(dian)并(bing)網(wang)檢(jian)測與安(an)全運(yun)行關(guan)鍵技(ji)術及(ji)應用(yong)，提升了(le)(le)沿海(hai)風電(dian)(dian)(dian)場無(wu)(wu)功控制能力，有效保障了(le)(le)風電(dian)(dian)(dian)場并(bing)網(wang)安(an)全。
根據國(guo)家風(feng)電(dian)(dian)(dian)“十二五”發展規劃(hua)，到(dao)2015年，江蘇(su)沿海(hai)風(feng)電(dian)(dian)(dian)裝機容(rong)量將達到(dao)600萬(wan)千(qian)瓦(wa)(wa)；東部沿海(hai)地區也將規劃(hua)建設千(qian)萬(wan)千(qian)瓦(wa)(wa)級風(feng)電(dian)(dian)(dian)基地，未來將形成海(hai)上(shang)風(feng)電(dian)(dian)(dian)“三峽”。面對沿海(hai)大(da)規模風(feng)電(dian)(dian)(dian)安(an)全(quan)并(bing)網(wang)(wang)(wang)(wang)(wang)技(ji)(ji)術(shu)需(xu)求，國(guo)網(wang)(wang)(wang)(wang)(wang)江蘇(su)電(dian)(dian)(dian)力、中國(guo)電(dian)(dian)(dian)力科學研(yan)究院、國(guo)網(wang)(wang)(wang)(wang)(wang)智能電(dian)(dian)(dian)網(wang)(wang)(wang)(wang)(wang)研(yan)究院聯合開(kai)展了(le)“沿海(hai)大(da)規模風(feng)電(dian)(dian)(dian)并(bing)網(wang)(wang)(wang)(wang)(wang)檢(jian)測與安(an)全(quan)運行關鍵技(ji)(ji)術(shu)及應(ying)用”相關研(yan)究和攻關。
自(zi)2011年(nian)開始，該項目(mu)研(yan)究成(cheng)果陸續(xu)在(zai)江蘇沿(yan)海13家(jia)海上風電(dian)(dian)場(chang)、機組制(zhi)造廠家(jia)、公司系統多個單位應(ying)用。國網(wang)江蘇電(dian)(dian)力發現并整改56.4萬(wan)千瓦不具備(bei)低壓(ya)穿越能(neng)(neng)力的(de)風電(dian)(dian)機組，有(you)效保(bao)障了風電(dian)(dian)場(chang)并網(wang)安全；完成(cheng)了總容(rong)量14萬(wan)千乏固定式靜止無(wu)功(gong)發生器性能(neng)(neng)檢(jian)測與調試(shi)，提升了沿(yan)海風電(dian)(dian)場(chang)無(wu)功(gong)控(kong)制(zhi)能(neng)(neng)力。
該(gai)(gai)項(xiang)(xiang)目(mu)研制了(le)(le)擁(yong)有(you)35千伏、0.8萬千瓦容量，能夠兼顧海上(shang)和陸上(shang)風(feng)機測試、適應(ying)沿海鹽堿(jian)高濕氣(qi)象(xiang)環境的(de)(de)移動式低(di)(di)(di)電(dian)(dian)(dian)(dian)壓(ya)穿越(yue)檢(jian)測裝置。有(you)了(le)(le)該(gai)(gai)裝置，就(jiu)可以很方便地檢(jian)測出風(feng)電(dian)(dian)(dian)(dian)機組(zu)是否具備低(di)(di)(di)電(dian)(dian)(dian)(dian)壓(ya)穿越(yue)能力。據介紹(shao)，當端(duan)電(dian)(dian)(dian)(dian)壓(ya)降低(di)(di)(di)到(dao)一(yi)定值時，如電(dian)(dian)(dian)(dian)網出現短時故障，只有(you)具備了(le)(le)低(di)(di)(di)電(dian)(dian)(dian)(dian)壓(ya)穿越(yue)能力的(de)(de)風(feng)電(dian)(dian)(dian)(dian)機組(zu)才可實(shi)現不脫(tuo)離電(dian)(dian)(dian)(dian)網而繼續維(wei)持運行，甚(shen)至還可為系(xi)統提供一(yi)定無功補(bu)償以幫助系(xi)統恢復電(dian)(dian)(dian)(dian)壓(ya)，從而避免了(le)(le)大規模風(feng)電(dian)(dian)(dian)(dian)機組(zu)脫(tuo)網現象(xiang)。同(tong)時，該(gai)(gai)項(xiang)(xiang)目(mu)在國內外首創了(le)(le)電(dian)(dian)(dian)(dian)抗參數自適應(ying)匹配的(de)(de)風(feng)電(dian)(dian)(dian)(dian)機組(zu)低(di)(di)(di)電(dian)(dian)(dian)(dian)壓(ya)穿越(yue)能力檢(jian)測技術，攻克(ke)了(le)(le)系(xi)統阻抗、短路電(dian)(dian)(dian)(dian)抗和限流(liu)電(dian)(dian)(dian)(dian)抗不易精(jing)確(que)匹配的(de)(de)難(nan)題，實(shi)現了(le)(le)電(dian)(dian)(dian)(dian)壓(ya)跌落精(jing)度1%之(zhi)內的(de)(de)精(jing)確(que)控制。
此外，該項目(mu)還開發了(le)具備分功率區段(duan)數(shu)據(ju)處理能(neng)力(li)的電(dian)(dian)能(neng)質量(liang)在(zai)線監測(ce)終(zhong)端，可實現對海量(liang)數(shu)據(ju)的在(zai)線計算分析，提高(gao)了(le)風電(dian)(dian)電(dian)(dian)能(neng)質量(liang)的在(zai)線監測(ce)水平；研(yan)究了(le)調峰調頻等運(yun)行策(ce)略(lve)以及(ji)千萬千瓦(wa)級(ji)沿海風電(dian)(dian)接納能(neng)力(li)評估技術，提高(gao)了(le)電(dian)(dian)網(wang)的風電(dian)(dian)接納能(neng)力(li)。