4月29日，賽(sai)(sai)晶(jing)科(ke)技(ji)發(fa)布公(gong)告：本公(gong)司(si)旗下兩家子公(gong)司(si)“嘉善賽(sai)(sai)晶(jing)電(dian)容(rong)器有(you)限(xian)公(gong)司(si)”和“嘉善華(hua)瑞(rui)(rui)賽(sai)(sai)晶(jing)電(dian)氣(qi)設備科(ke)技(ji)有(you)限(xian)公(gong)司(si)”作為供(gong)應商，分別與(yu)采購(gou)方常州博(bo)瑞(rui)(rui)簽訂合(he)同(tong)，采購(gou)賽(sai)(sai)晶(jing)直流支撐(cheng)電(dian)容(rong)器近1910臺、壓(ya)接式IGBT近1900件，合(he)同(tong)總金額約8600萬(wan)元。以(yi)上產品應用于“國網(wang)四川(chuan)成都供(gong)電(dian)公(gong)司(si)66KV構網(wang)型直掛靜止(zhi)無(wu)功發(fa)生(sheng)器“項目(mu)（以(yi)下簡稱“構網(wang)型SVG”），且該項目(mu)所涉及的直流支撐(cheng)電(dian)容(rong)器和壓(ya)接式IGBT均(jun)由(you)賽(sai)(sai)晶(jing)獨(du)家供(gong)應。

國網(wang)四川成都(dou)供電(dian)公司500kV玉堤變電(dian)站66kV動態無功補償(chang)新增工程SVG室(shi)主體結(jie)構

由于新(xin)能(neng)源的間歇性(xing)和(he)波動(dong)性(xing)，以及大規(gui)模(mo)電(dian)(dian)力(li)電(dian)(dian)子器件(jian)(jian)應用(yong)(yong)給(gei)電(dian)(dian)網帶來的高(gao)負荷、頻(pin)率(lv)變(bian)化(hua)加(jia)快(kuai)和(he)電(dian)(dian)壓(ya)變(bian)化(hua)劇烈等復雜難(nan)題，常規(gui)手(shou)段難(nan)以解決(jue)根本問(wen)題。構(gou)網型(xing)SVG采用(yong)(yong)構(gou)網控制策(ce)略，能(neng)構(gou)建穩(wen)定(ding)的交流電(dian)(dian)動(dong)勢，可以在(zai)電(dian)(dian)壓(ya)波動(dong)時(shi)提(ti)供無延時(shi)同步(bu)無功支(zhi)(zhi)撐，從而在(zai)高(gao)比(bi)例新(xin)能(neng)源電(dian)(dian)力(li)系統(tong)(tong)中(zhong)發揮穩(wen)定(ding)作用(yong)(yong)，有效提(ti)升新(xin)能(neng)源并網能(neng)力(li)。賽(sai)晶提(ti)供的柔直用(yong)(yong)直流支(zhi)(zhi)撐電(dian)(dian)容器和(he)壓(ya)接式IGBT是包括構(gou)網型(xing)SVG在(zai)內(nei)的多種新(xin)型(xing)SVG項(xiang)目所必備的核心(xin)電(dian)(dian)力(li)電(dian)(dian)子器件(jian)(jian)，為新(xin)型(xing)電(dian)(dian)力(li)系統(tong)(tong)的構(gou)建提(ti)供技術和(he)設備支(zhi)(zhi)持。

此次項目是構網型(xing)SVG在電(dian)(dian)(dian)網側超大城市的首次應用，旨在解(jie)決成都電(dian)(dian)(dian)網因外受電(dian)(dian)(dian)比例高，“電(dian)(dian)(dian)源空心化”問題突出，電(dian)(dian)(dian)網暫態(tai)電(dian)(dian)(dian)壓支撐不足(zu)的問題。工(gong)程投(tou)產后，能(neng)夠有效消除電(dian)(dian)(dian)網暫態(tai)電(dian)(dian)(dian)壓失穩風險(xian)，提升德寶直(zhi)流豐(feng)期送電(dian)(dian)(dian)能(neng)力(li)，極大緩解(jie)成都電(dian)(dian)(dian)網供電(dian)(dian)(dian)壓力(li)。（德寶直(zhi)流輸(shu)(shu)(shu)電(dian)(dian)(dian)項目，也稱為德陽—寶雞直(zhi)流輸(shu)(shu)(shu)電(dian)(dian)(dian)工(gong)程，該工(gong)程能(neng)夠根據(ju)季節變化調整輸(shu)(shu)(shu)電(dian)(dian)(dian)方向，在豐(feng)水(shui)期將(jiang)四(si)川的水(shui)電(dian)(dian)(dian)輸(shu)(shu)(shu)送至西北，而在枯水(shui)期則從西北輸(shu)(shu)(shu)送火(huo)電(dian)(dian)(dian)和新能(neng)源回四(si)川，實現兩地資(zi)源的“豐(feng)枯互濟”。）

直(zhi)流(liu)(liu)支(zhi)(zhi)撐(cheng)電(dian)容器(qi)，作為(wei)柔性直(zhi)流(liu)(liu)輸(shu)電(dian)工程(cheng)(cheng)換流(liu)(liu)閥(fa)中(zhong)的核心器(qi)件，從長期完全(quan)依賴進(jin)口到(dao)賽晶(jing)(jing)(jing)順(shun)利(li)攻克(ke)研(yan)發難題、到(dao)成(cheng)功驗證應用于(yu)“張北直(zhi)流(liu)(liu)工程(cheng)(cheng)、隨(sui)州配網工程(cheng)(cheng)、杭州低頻輸(shu)電(dian)工程(cheng)(cheng)、舟山柔直(zhi)工程(cheng)(cheng)、如東(dong)海上風電(dian)工程(cheng)(cheng)、深圳鵬程(cheng)(cheng)STACOM以及(ji)其他多個(ge)大容量(liang)SVG項目、到(dao)年初順(shun)利(li)通過(guo)國家級新產(chan)品技術(shu)鑒定、再到(dao)此次(ci)“構網型SVG”項目中(zhong)實(shi)現首次(ci)國產(chan)批量(liang)供應，體現了賽晶(jing)(jing)(jing)直(zhi)流(liu)(liu)支(zhi)(zhi)撐(cheng)電(dian)容器(qi)設備的研(yan)發制造水(shui)平和自主創新能力，也標(biao)志著賽晶(jing)(jing)(jing)直(zhi)流(liu)(liu)支(zhi)(zhi)撐(cheng)電(dian)容器(qi)正式邁(mai)出了國產(chan)化替代的第(di)一步。

賽晶柔(rou)直(zhi)用直(zhi)流支(zhi)撐電(dian)容(rong)器基(ji)礎參數

賽(sai)晶國產直(zhi)流支(zhi)撐電容器在此次構(gou)網型SVG中(zhong)的首次大規(gui)模應用具有重要意義：

提升(sheng)自主創新能(neng)力：通過(guo)技術攻關和自主(zhu)研(yan)發，賽(sai)晶科技成功打破(po)了國(guo)(guo)外企業在(zai)柔直用(yong)直流支撐(cheng)電容器領(ling)域的(de)技術壟斷，這不僅減少了對國(guo)(guo)外先進技術的(de)依(yi)賴，還推動了國(guo)(guo)內電力電子(zi)行業的(de)技術進步。

降低工程成(cheng)本：實現國產(chan)化后(hou)，產(chan)品價(jia)(jia)格(ge)有(you)望(wang)回歸(gui)到合理(li)水平(ping)，這有(you)助于降低整(zheng)個柔直(zhi)工程的造價(jia)(jia)，節約國家投(tou)資。同(tong)時，后(hou)期維護成(cheng)本也將大幅降低，因為不再依賴于昂(ang)貴(gui)的進口產(chan)品。

助(zhu)力新能源(yuan)發(fa)展：隨(sui)著“十四五”可再生(sheng)能(neng)源(yuan)發展規劃的(de)出臺，海上(shang)風電(dian)(dian)等新(xin)能(neng)源(yuan)的(de)開(kai)發將(jiang)迎來新(xin)的(de)機遇。國產直流支撐電(dian)(dian)容器的(de)應用(yong)將(jiang)有(you)助于滿足新(xin)能(neng)源(yuan)并網(wang)(wang)和電(dian)(dian)力(li)外送的(de)需(xu)求，支持新(xin)能(neng)源(yuan)發電(dian)(dian)的(de)穩定接入電(dian)(dian)網(wang)(wang)。

增(zeng)強能源系統靈活性：柔性(xing)(xing)直(zhi)流(liu)輸電(dian)技(ji)術以(yi)其高度的靈(ling)活(huo)性(xing)(xing)和(he)可控性(xing)(xing)，符合新型電(dian)力(li)系統對電(dian)力(li)技(ji)術的要求。國(guo)產直(zhi)流(liu)支撐電(dian)容器(qi)的應用(yong)將進一步(bu)增強電(dian)網的穩定性(xing)(xing)和(he)可靠性(xing)(xing)，特別是(shi)在清潔(jie)能源電(dian)力(li)外送(song)、遠海風電(dian)并網等(deng)領域。

未來(lai)，在(zai)國內特高壓(ya)輸電(dian)工程密集(ji)開工，柔性直(zhi)流(liu)輸電(dian)潛力巨大的背景下(xia)，賽晶直(zhi)流(liu)支撐(cheng)電(dian)容器在(zai)國產替代的舞(wu)臺上必將大顯身(shen)手，也將為集(ji)團帶來(lai)新的市(shi)場機(ji)遇。