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11月(yue)16日，記者從國(guo)家電網(wang)有限公司總部線上科技成果鑒定會獲悉，由國(guo)網(wang)青(qing)海省(sheng)電力公司牽頭的(de)(de)“送(song)/受端直流近區(qu)大規模光伏發電的(de)(de)控制(zhi)策略優化技術”項目順利(li)通過項目評審，創新成果突出，總體達到(dao)“國(guo)際先(xian)進水平”。

項目研究成果將繼續應用于青豫直流送端、陜武直流送端、新疆南部等高比例光伏接入電網的暫態性能優化，提升青海海南地區、陜西、新疆的新能源消納和陜武直流輸電能力，進一步服務西部省份清潔能源電力外送。

自(zi)2019年(nian)項(xiang)目(mu)立項(xiang)以來，國網(wang)青海省電(dian)(dian)(dian)力(li)公司(si)，充分發(fa)(fa)(fa)揮青海新(xin)(xin)能(neng)(neng)源地域和自(zi)身(shen)技(ji)(ji)術優(you)勢，針對(dui)高比例光(guang)伏接入(ru)直流近區(qu)電(dian)(dian)(dian)網(wang)后，電(dian)(dian)(dian)網(wang)缺(que)乏暫態(tai)有效主動支(zhi)撐造成系統穩(wen)(wen)定(ding)性(xing)(xing)下降的問題(ti)(ti)，分析了(le)影響光(guang)伏電(dian)(dian)(dian)站(zhan)暫態(tai)特征控(kong)制(zhi)(zhi)模式及控(kong)制(zhi)(zhi)參(can)(can)數(shu)，提(ti)出了(le)光(guang)伏發(fa)(fa)(fa)電(dian)(dian)(dian)故(gu)障穿越(yue)關鍵參(can)(can)數(shu)提(ti)取、控(kong)制(zhi)(zhi)及參(can)(can)數(shu)優(you)化(hua)(hua)方法，解決(jue)了(le)多目(mu)標穩(wen)(wen)定(ding)約束(shu)下光(guang)伏發(fa)(fa)(fa)電(dian)(dian)(dian)控(kong)制(zhi)(zhi)參(can)(can)數(shu)對(dui)電(dian)(dian)(dian)網(wang)暫態(tai)穩(wen)(wen)定(ding)的適應性(xing)(xing)難(nan)題(ti)(ti)，構建了(le)“電(dian)(dian)(dian)網(wang)需求(qiu)-參(can)(can)數(shu)優(you)化(hua)(hua)-參(can)(can)數(shu)測試-仿真校(xiao)核(he)”的新(xin)(xin)能(neng)(neng)源發(fa)(fa)(fa)電(dian)(dian)(dian)暫態(tai)性(xing)(xing)能(neng)(neng)優(you)化(hua)(hua)技(ji)(ji)術體系，在(zai)青海高比例新(xin)(xin)能(neng)(neng)源電(dian)(dian)(dian)網(wang)完成了(le)新(xin)(xin)能(neng)(neng)源發(fa)(fa)(fa)電(dian)(dian)(dian)暫態(tai)性(xing)(xing)能(neng)(neng)優(you)化(hua)(hua)實踐應用，經過2年(nian)科技(ji)(ji)攻關，取得多項(xiang)科技(ji)(ji)創新(xin)(xin)成果，項(xiang)目(mu)發(fa)(fa)(fa)表核(he)心論(lun)文7篇，申請發(fa)(fa)(fa)明專利3項(xiang)。

國網青海電科院試(shi)驗人員開展光(guang)熱電站機(ji)組AVC聯調(diao)試(shi)驗。何炳(bing)勛(xun)攝

結合項目研究(jiu)結論，國網(wang)青(qing)(qing)海(hai)(hai)(hai)電力(li)目前已在(zai)青(qing)(qing)海(hai)(hai)(hai)海(hai)(hai)(hai)西地區完(wan)成50萬千(qian)瓦(wa)(wa)光(guang)伏(fu)(fu)參(can)數優化(hua)試點，提升海(hai)(hai)(hai)西地區新(xin)能(neng)(neng)源外送能(neng)(neng)力(li)20萬千(qian)瓦(wa)(wa)。按照2020年風(feng)電和光(guang)伏(fu)(fu)利用小(xiao)時(shi)(shi)數1917小(xiao)時(shi)(shi)和1468小(xiao)時(shi)(shi)計算，新(xin)增新(xin)能(neng)(neng)源發(fa)電量30.46億千(qian)瓦(wa)(wa)時(shi)(shi)，等量替代(dai)燃煤(mei)相當(dang)于節約電煤(mei)97.34萬噸。