太陽能(neng)熱(re)發(fa)電(dian)(dian)是能(neng)夠連續穩定發(fa)電(dian)(dian),發(fa)揮煤(mei)電(dian)(dian)機組作用的電(dian)(dian)網友(you)好型(xing)電(dian)(dian)源(yuan)。隨著(zhu)我國(guo)新(xin)型(xing)能(neng)源(yuan)體系(xi)、新(xin)型(xing)電(dian)(dian)力(li)系(xi)統(tong)以及風(feng)光新(xin)能(neng)源(yuan)大基地的加快(kuai)建(jian)設(she),兼具調峰電(dian)(dian)源(yuan)和儲能(neng)雙(shuang)重功能(neng)、具備(bei)在部分(fen)區域(yu)作為調峰和基礎性電(dian)(dian)源(yuan)潛力(li)的太陽能(neng)熱(re)發(fa)電(dian)(dian)技(ji)術(shu)正(zheng)迎來(lai)新(xin)的發(fa)展機遇。然而,光熱(re)發(fa)電(dian)(dian)行(xing)業也(ye)正(zheng)面臨新(xin)的挑戰。
光熱發電行業面臨的挑戰
一、產業快速發展,成本快速下降,但與光伏風電比依然較高
為(wei)推動我國(guo)太陽(yang)能熱(re)發電(dian)技術產(chan)業化(hua)發展,形成國(guo)內光(guang)熱(re)設備(bei)制(zhi)造(zao)產(chan)業鏈,培育系統集成商,2016年9月,國(guo)家(jia)能源局(ju)組織實施了(le)一(yi)批光(guang)熱(re)發電(dian)示(shi)范項目建(jian)(jian)設,發改委核(he)定標桿(gan)電(dian)價(jia)為(wei)1.15元/kWh(和2011年的(de)光(guang)伏電(dian)價(jia)相(xiang)同,當時國(guo)內光(guang)伏裝(zhuang)機已達(da)到3GW)。通過示(shi)范項目的(de)建(jian)(jian)設,我國(guo)完全掌握了(le)光(guang)熱(re)發電(dian)系統的(de)聚光(guang)、吸(xi)熱(re)、儲換熱(re)等核(he)心技術,以(yi)及適應我國(guo)高海拔、高寒地區環境的(de)光(guang)熱(re)電(dian)站設計集成、建(jian)(jian)設與運營技術,并(bing)擁(yong)有完整的(de)知識產(chan)權(quan),從業企事業單位(wei)數量和產(chan)品(pin)供應能力實現較大(da)增(zeng)長,為(wei)后續光(guang)熱(re)發電(dian)進一(yi)步發展奠定了(le)堅實基礎。
國(guo)(guo)家發(fa)(fa)展(zhan)改革委在《關(guan)(guan)于(yu)太(tai)陽(yang)能(neng)熱(re)發(fa)(fa)電(dian)(dian)標桿上網(wang)(wang)電(dian)(dian)價(jia)(jia)(jia)政(zheng)策(ce)的(de)(de)通(tong)知》中提出:2019年以后國(guo)(guo)家將根據(ju)太(tai)陽(yang)能(neng)熱(re)發(fa)(fa)電(dian)(dian)產業(ye)發(fa)(fa)展(zhan)狀況(kuang)、發(fa)(fa)電(dian)(dian)成(cheng)本降(jiang)低情(qing)況(kuang),適時(shi)完善太(tai)陽(yang)能(neng)熱(re)發(fa)(fa)電(dian)(dian)價(jia)(jia)(jia)格(ge)政(zheng)策(ce),逐步降(jiang)低新(xin)(xin)建太(tai)陽(yang)能(neng)熱(re)發(fa)(fa)電(dian)(dian)價(jia)(jia)(jia)格(ge)水平。然(ran)而,財政(zheng)部2020年1月發(fa)(fa)布《關(guan)(guan)于(yu)促進非水可再生能(neng)源發(fa)(fa)電(dian)(dian)健(jian)康發(fa)(fa)展(zhan)的(de)(de)若干意見》提出:新(xin)(xin)增(zeng)光熱(re)項(xiang)目不(bu)再納入中央財政(zheng)補貼范(fan)圍。《國(guo)(guo)家發(fa)(fa)展(zhan)改革委關(guan)(guan)于(yu)2021年新(xin)(xin)能(neng)源上網(wang)(wang)電(dian)(dian)價(jia)(jia)(jia)政(zheng)策(ce)有關(guan)(guan)事(shi)項(xiang)的(de)(de)通(tong)知》(發(fa)(fa)改價(jia)(jia)(jia)格(ge)〔2021〕833號)規定:2021年起,新(xin)(xin)核準(備案(an))光熱(re)發(fa)(fa)電(dian)(dian)項(xiang)目上網(wang)(wang)電(dian)(dian)價(jia)(jia)(jia)由當地省級價(jia)(jia)(jia)格(ge)主管(guan)部門制定,具備條件的(de)(de)可通(tong)過競爭性配置(zhi)方式形成(cheng),上網(wang)(wang)電(dian)(dian)價(jia)(jia)(jia)高于(yu)當地燃(ran)煤發(fa)(fa)電(dian)(dian)基(ji)準價(jia)(jia)(jia)的(de)(de),基(ji)準價(jia)(jia)(jia)以內的(de)(de)部分由電(dian)(dian)網(wang)(wang)企業(ye)結算。
截至(zhi)2023年(nian)(nian)底(di),我國并(bing)網運行(xing)的光(guang)熱發(fa)電機組容量僅有57萬千(qian)瓦,裝機容量非常小;光(guang)熱發(fa)電處(chu)于(yu)發(fa)展初期,度電成本(ben)仍較高,并(bing)不具備同經歷了數十(shi)年(nian)(nian)補貼發(fa)展的風電、光(guang)伏(fu)平價(jia)的條件。此外,光(guang)熱發(fa)電的電力品質尚未受到重(zhong)視,對(dui)于(yu)促進新能源消納的價(jia)值沒有被科學評(ping)估(gu)及在價(jia)格中體(ti)現。
二、產業鏈配套齊全,但電站項目少,拉動強度不足
我(wo)國(guo)(guo)(guo)光(guang)(guang)(guang)(guang)熱(re)(re)發電(dian)(dian)(dian)(dian)(dian)技(ji)(ji)術(shu)(shu)(shu)起步晚于國(guo)(guo)(guo)外(wai),最早的(de)商業(ye)化光(guang)(guang)(guang)(guang)熱(re)(re)電(dian)(dian)(dian)(dian)(dian)站(zhan)始(shi)建于上(shang)世紀80年代(dai)(dai)(美國(guo)(guo)(guo)),歐洲于2007年投運(yun)了(le)第一座商業(ye)化儲熱(re)(re)型光(guang)(guang)(guang)(guang)熱(re)(re)電(dian)(dian)(dian)(dian)(dian)站(zhan)。我(wo)國(guo)(guo)(guo)首座50MW及(ji)以(yi)上(shang)光(guang)(guang)(guang)(guang)熱(re)(re)示范(fan)電(dian)(dian)(dian)(dian)(dian)站(zhan)于2018年投運(yun)。光(guang)(guang)(guang)(guang)熱(re)(re)發電(dian)(dian)(dian)(dian)(dian)涉及(ji)熱(re)(re)力(li)學、傳(chuan)熱(re)(re)學、光(guang)(guang)(guang)(guang)學、材料學、自動化控(kong)制等多個(ge)學科,系統較(jiao)為(wei)復雜。通過(guo)示范(fan)項目的(de)建設(she),我(wo)國(guo)(guo)(guo)光(guang)(guang)(guang)(guang)熱(re)(re)發電(dian)(dian)(dian)(dian)(dian)整體(ti)技(ji)(ji)術(shu)(shu)(shu)能(neng)力(li)基本(ben)與國(guo)(guo)(guo)外(wai)第二代(dai)(dai)商業(ye)化電(dian)(dian)(dian)(dian)(dian)站(zhan)技(ji)(ji)術(shu)(shu)(shu)齊平,部分電(dian)(dian)(dian)(dian)(dian)站(zhan)的(de)設(she)計、建設(she)和運(yun)維(wei)水平已(yi)處于國(guo)(guo)(guo)際領(ling)先(xian)水平。然而,由(you)(you)于光(guang)(guang)(guang)(guang)熱(re)(re)發電(dian)(dian)(dian)(dian)(dian)項目初投資(zi)高,在沒有(you)國(guo)(guo)(guo)家(jia)電(dian)(dian)(dian)(dian)(dian)價政(zheng)策和補貼的(de)情況下,光(guang)(guang)(guang)(guang)熱(re)(re)電(dian)(dian)(dian)(dian)(dian)站(zhan)投資(zi)積極性不足(zu),市(shi)場(chang)技(ji)(ji)術(shu)(shu)(shu)迭代(dai)(dai)機會欠缺,相關設(she)計、施工、設(she)備等未(wei)能(neng)有(you)機會實(shi)現標準(zhun)化、集約化,產業(ye)規模(mo)效應尚未(wei)釋放(fang),導致度電(dian)(dian)(dian)(dian)(dian)成本(ben)仍較(jiao)高,阻礙了(le)快速邁向(xiang)大(da)規模(mo)發展。同時,新能(neng)源+儲能(neng)過(guo)網型技(ji)(ji)術(shu)(shu)(shu)逐(zhu)步成熟、由(you)(you)電(dian)(dian)(dian)(dian)(dian)動車發展帶動起來的(de)龐大(da)的(de)電(dian)(dian)(dian)(dian)(dian)池儲能(neng)技(ji)(ji)術(shu)(shu)(shu)成本(ben)不斷下降,如何快速實(shi)現降本(ben)增效是行業(ye)發展面(mian)臨的(de)巨大(da)挑戰。
三、光熱調峰啟動,但機組容量小,不足以體現光熱的價值
光熱(re)發電(dian)是具有靈活調(diao)節和系統支(zhi)撐能(neng)力(li)(li)的(de)(de)(de)(de)(de)可再生能(neng)源(yuan)發電(dian)技(ji)術,是唯一具有替代煤(mei)電(dian)潛力(li)(li)的(de)(de)(de)(de)(de)新能(neng)源(yuan)技(ji)術。然而,首(shou)批示范項目(mu)是為了驗證光熱(re)發電(dian)技(ji)術路線的(de)(de)(de)(de)(de)可行性(xing);當前風(feng)光大(da)基地項目(mu)中(zhong),光熱(re)發電(dian)的(de)(de)(de)(de)(de)裝機容(rong)量(liang)及系統配(pei)置受(shou)制于(yu)平價(jia)(jia)上網的(de)(de)(de)(de)(de)投資經(jing)濟性(xing),功能(neng)定位為“調(diao)峰電(dian)源(yuan)”,整體裝機容(rong)量(liang)比(bi)重(zhong)較低(di)(與風(feng)光配(pei)比(bi)為1:6或1:9),不(bu)足以發揮(hui)對電(dian)網系統的(de)(de)(de)(de)(de)支(zhi)撐作用。此外,光熱(re)發電(dian)對構(gou)建以新能(neng)源(yuan)為主體的(de)(de)(de)(de)(de)新型電(dian)力(li)(li)系統的(de)(de)(de)(de)(de)價(jia)(jia)值,包括提高(gao)(gao)電(dian)網的(de)(de)(de)(de)(de)穩定性(xing)、提高(gao)(gao)風(feng)電(dian)和光伏的(de)(de)(de)(de)(de)安裝量(liang)等,尚未有定量(liang)的(de)(de)(de)(de)(de)數據和價(jia)(jia)格體現。
促進光熱發電行業發展的建議
一、研究制定“去補貼-市場化發展”過渡期間的光熱發電兩部制電價
光熱(re)發(fa)電(dian)(dian)初投資較(jiao)大,目(mu)前在風光大基(ji)地(di)中,光熱(re)發(fa)電(dian)(dian)的角色被定(ding)為“調(diao)節性電(dian)(dian)源(yuan)”,與(yu)風電(dian)(dian)、光伏(fu)一體化(hua)發(fa)展,運行(xing)策略為中午(wu)太陽能(neng)資源(yuan)較(jiao)好(hao)時,為光伏(fu)讓(rang)路(lu),只在早(zao)晚高(gao)峰頂峰發(fa)電(dian)(dian),年運行(xing)小(xiao)時數從4000小(xiao)時左右下降至2000小(xiao)時甚至更低。建議在新(xin)(xin)能(neng)源(yuan)基(ji)地(di)中,率先(xian)開展上(shang)網電(dian)(dian)價形成機制(zhi)的市(shi)場化(hua)改革,研究出臺光熱(re)發(fa)電(dian)(dian)機組(zu)的兩部制(zhi)電(dian)(dian)價,結合全國典型光熱(re)發(fa)電(dian)(dian)機組(zu)的投資成本,明確了光熱(re)機組(zu)容量電(dian)(dian)價的適用范(fan)圍(wei)和(he)國家補償標準(zhun),為光熱(re)發(fa)電(dian)(dian)投資提供一定(ding)程(cheng)度穩定(ding)的預期(qi)和(he)收入來源(yuan),充分體現光熱(re)發(fa)電(dian)(dian)對電(dian)(dian)力(li)(li)系統的支撐(cheng)調(diao)節價值,從而提高(gao)新(xin)(xin)能(neng)源(yuan)基(ji)地(di)新(xin)(xin)能(neng)源(yuan)電(dian)(dian)力(li)(li)比重。
在(zai)(zai)給予光(guang)熱(re)(re)(re)發(fa)電(dian)(dian)(dian)(dian)機組容量(liang)電(dian)(dian)(dian)(dian)價(jia)的(de)(de)(de)基(ji)礎上(shang),耦合(he)電(dian)(dian)(dian)(dian)能量(liang)價(jia)值(電(dian)(dian)(dian)(dian)力中長(chang)期或現貨市場)或調(diao)節價(jia)值(輔(fu)助服務)以(yi)及環境價(jia)值(CCER、綠電(dian)(dian)(dian)(dian)、綠證)的(de)(de)(de)貨幣化(hua)實現,提高光(guang)熱(re)(re)(re)發(fa)電(dian)(dian)(dian)(dian)項目投資的(de)(de)(de)積(ji)極(ji)性(xing),確保(bao)光(guang)熱(re)(re)(re)發(fa)電(dian)(dian)(dian)(dian)行(xing)業持續健康運(yun)行(xing),在(zai)(zai)逐步(bu)去煤炭化(hua)的(de)(de)(de)“雙碳”戰略背(bei)景下,促進更大規模的(de)(de)(de)新能源消納。未來隨著電(dian)(dian)(dian)(dian)力市場建設和頂(ding)層設計(ji)的(de)(de)(de)不(bu)斷(duan)完(wan)善,光(guang)熱(re)(re)(re)發(fa)電(dian)(dian)(dian)(dian)將(jiang)最終(zhong)通(tong)過市場化(hua)確定價(jia)格而非政(zheng)府(fu)定價(jia),不(bu)斷(duan)提升自(zi)己在(zai)(zai)電(dian)(dian)(dian)(dian)能量(liang)市場中的(de)(de)(de)競爭(zheng)優勢(shi),適應光(guang)熱(re)(re)(re)發(fa)電(dian)(dian)(dian)(dian)在(zai)(zai)現階段(duan)的(de)(de)(de)系統調(diao)節性(xing)以(yi)及未來基(ji)礎保(bao)障性(xing)電(dian)(dian)(dian)(dian)源轉型需要(yao),從而確保(bao)電(dian)(dian)(dian)(dian)力系統發(fa)電(dian)(dian)(dian)(dian)容量(liang)的(de)(de)(de)長(chang)期充裕(yu)性(xing)。
二、盡快開展太陽能熱發電對電網支撐能力的研究
受制于平(ping)價上網條件下的(de)(de)(de)(de)投(tou)資經濟性,新(xin)(xin)能(neng)(neng)源(yuan)大(da)基地(di)(di)項目中(zhong)光熱發電(dian)(dian)(dian)(dian)與光伏(fu)的(de)(de)(de)(de)容量配(pei)置(zhi)比例(li)極低,這些項目建(jian)(jian)成后對(dui)(dui)提升電(dian)(dian)(dian)(dian)網穩定(ding)性和(he)可靠性的(de)(de)(de)(de)作(zuo)(zuo)用(yong)尚(shang)不(bu)(bu)明確(que)。如此低的(de)(de)(de)(de)配(pei)置(zhi)和(he)容量恐(kong)將(jiang)“杯水車薪”,無法保證(zheng)新(xin)(xin)能(neng)(neng)源(yuan)大(da)基地(di)(di)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)力品質(zhi)和(he)外送要求(qiu)。建(jian)(jian)議(yi)盡快開展光熱發電(dian)(dian)(dian)(dian)機(ji)組對(dui)(dui)電(dian)(dian)(dian)(dian)網支撐(cheng)能(neng)(neng)力的(de)(de)(de)(de)研究(jiu)(jiu)(jiu)。依據(ju)(ju)大(da)基地(di)(di)千萬千瓦級規模(mo)的(de)(de)(de)(de)直流送出特(te)點(dian)以(yi)及(ji)西(xi)部(bu)地(di)(di)區的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)網特(te)征,結合用(yong)戶側需求(qiu),立足于對(dui)(dui)外輸送100%的(de)(de)(de)(de)新(xin)(xin)能(neng)(neng)源(yuan)電(dian)(dian)(dian)(dian)力建(jian)(jian)設(she)新(xin)(xin)能(neng)(neng)源(yuan)基地(di)(di),從參與電(dian)(dian)(dian)(dian)力系統調(diao)(diao)峰、調(diao)(diao)頻,進行電(dian)(dian)(dian)(dian)網運行控制策(ce)略的(de)(de)(de)(de)優化研究(jiu)(jiu)(jiu),結合不(bu)(bu)同儲能(neng)(neng)技術(shu)特(te)點(dian)與響應特(te)性分析研究(jiu)(jiu)(jiu)提升大(da)基地(di)(di)外送消(xiao)納(na)能(neng)(neng)力的(de)(de)(de)(de)合理配(pei)置(zhi)與優化控制,以(yi)項目數(shu)據(ju)(ju)驗證(zheng)光熱發電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)實際調(diao)(diao)節(jie)作(zuo)(zuo)用(yong)和(he)系統支撐(cheng)能(neng)(neng)力。建(jian)(jian)議(yi)根據(ju)(ju)受電(dian)(dian)(dian)(dian)地(di)(di)區的(de)(de)(de)(de)負荷特(te)性,研究(jiu)(jiu)(jiu)確(que)定(ding)上網電(dian)(dian)(dian)(dian)價系數(shu)和(he)對(dui)(dui)應的(de)(de)(de)(de)時(shi)段(duan),使上網電(dian)(dian)(dian)(dian)價體現供求(qiu)關系,激勵(li)電(dian)(dian)(dian)(dian)源(yuan)為系統調(diao)(diao)峰。
三、不斷總結現有商業化光熱電站的經驗,進行技術創新,降低成本
1)提高(gao)核心(xin)設備(bei)的(de)壽命和(he)(he)可(ke)靠性(xing)。由(you)于在今后與(yu)光(guang)伏及(ji)風電打捆的(de)太(tai)陽(yang)能光(guang)熱(re)(re)(re)(re)電站需(xu)頻繁啟(qi)停(ting)及(ji)大(da)幅度(du)變負荷運行(xing),吸(xi)熱(re)(re)(re)(re)器、儲熱(re)(re)(re)(re)、換熱(re)(re)(re)(re)以及(ji)汽輪機熱(re)(re)(re)(re)應力問(wen)題(ti)突出,頻繁啟(qi)停(ting)造成的(de)疲勞問(wen)題(ti)和(he)(he)安全(quan)問(wen)題(ti)不容忽(hu)視。需(xu)要研(yan)究并進一步提高(gao)材料(liao)和(he)(he)設備(bei)的(de)安全(quan)性(xing)和(he)(he)可(ke)靠性(xing),建議對(dui)百兆(zhao)瓦級吸(xi)熱(re)(re)(re)(re)器、熔融鹽罐體(ti)、耐(nai)熱(re)(re)(re)(re)震蒸(zheng)汽透平、大(da)容量蒸(zheng)汽發(fa)生(sheng)器等進行(xing)研(yan)究。
2)優(you)化電站(zhan)來云(yun)的(de)應對(dui)策(ce)略。云(yun)是(shi)影響(xiang)(xiang)電站(zhan)集熱量(liang)、發電量(liang)的(de)重要因素(su);另外,云(yun)層短時(shi)間的(de)遮擋和離開(kai)會(hui)使(shi)吸熱器表面受(shou)熱發生(sheng)巨(ju)大變(bian)化,從而影響(xiang)(xiang)吸熱器的(de)使(shi)用壽命以及電站(zhan)的(de)安全運行。云(yun)策(ce)略的(de)優(you)化可以減(jian)少熱沖擊(ji)對(dui)設備(bei)的(de)影響(xiang)(xiang),減(jian)小運行風險(xian)。建議研制短時(shi)更精確的(de)云(yun)/太(tai)陽輻照度預(yu)報系統(tong)。
3)提(ti)高(gao)聚光(guang)場效率(lv)。低成(cheng)本(ben)(ben)(ben)光(guang)伏電力加熱(re)熔鹽的技(ji)(ji)術(shu)對太陽能(neng)熱(re)發電的集熱(re)場造成(cheng)巨(ju)大沖擊(ji)。太陽能(neng)熱(re)發電系(xi)(xi)統中(zhong),太陽能(neng)聚光(guang)成(cheng)本(ben)(ben)(ben)占比最高(gao)。一方(fang)面(mian)要與(yu)現有商業化(hua)光(guang)熱(re)電站(zhan)結合,開發低成(cheng)本(ben)(ben)(ben)聚光(guang)器和鏡(jing)場控制系(xi)(xi)統及反射鏡(jing)自(zi)潔技(ji)(ji)術(shu),提(ti)高(gao)聚光(guang)器動態準確度,減少(shao)集熱(re)系(xi)(xi)統溢出(chu)損失。另(ling)一方(fang)面(mian),需(xu)要采用新(xin)的聚光(guang)方(fang)式,降(jiang)(jiang)低余(yu)弦損失和截斷損失,提(ti)高(gao)太陽能(neng)聚光(guang)場的年均光(guang)學效率(lv),用更小(xiao)的光(guang)場提(ti)高(gao)能(neng)量(liang)輸出(chu),從而從根本(ben)(ben)(ben)上(shang)降(jiang)(jiang)低聚光(guang)場成(cheng)本(ben)(ben)(ben)。
4)提高(gao)核心材料性能。需要開(kai)發高(gao)溫高(gao)穩定(ding)性光/熱(re)(re)轉(zhuan)化材料,高(gao)溫合金,高(gao)溫長壽命低成本“充/儲/放熱(re)(re)”材料,柔(rou)性反光材料。
5)組(zu)織專門第三方(fang)技(ji)術力(li)量(liang),總結(jie)示范項目經驗,測(ce)試(shi)(shi)評價在運(yun)國家光(guang)熱(re)(re)發電示范電站。建議對(dui)光(guang)熱(re)(re)示范電站核(he)心(xin)設(she)備、子(zi)系(xi)統(tong)和全(quan)系(xi)統(tong)以及輔(fu)機設(she)備的性能參(can)數進(jin)行(xing)測(ce)試(shi)(shi),形成(cheng)詳細的測(ce)試(shi)(shi)科研報告;并基于數據梳理(li)經驗教訓,得出設(she)備設(she)計(ji)方(fang)法(fa)、運(yun)行(xing)操作規范、系(xi)統(tong)設(she)計(ji)規范和事故處理(li)大綱。
6)提高(gao)我(wo)國在高(gao)精度(du)檢(jian)測(ce)測(ce)量設(she)備研制和工程應用。我(wo)國相關檢(jian)測(ce)測(ce)量設(she)備主要(yao)為進口(kou)設(she)備。建議重點開展高(gao)能流密度(du)測(ce)量系統、生產線和現場的聚光器誤差測(ce)量儀器、槽(cao)式集熱器聚光誤差測(ce)試(shi)儀器、高(gao)溫熔鹽以及顆粒流量計(ji)等儀器儀表的研制和工程應用。
四、開展光熱發電前沿技術示范,持續深化基礎研究
技(ji)術(shu)創新(xin)(xin)是促進行業持(chi)續發(fa)(fa)展的(de)(de)源泉(quan),建議加緊(jin)部(bu)署前沿(yan)顛(dian)覆性技(ji)術(shu)研究(jiu),支(zhi)持(chi)光(guang)熱(re)發(fa)(fa)電(dian)(dian)(dian)新(xin)(xin)技(ji)術(shu)研發(fa)(fa)和(he)新(xin)(xin)技(ji)術(shu)示(shi)范工程。建議開展低成本聚光(guang)方(fang)式的(de)(de)基(ji)礎(chu)研究(jiu),從太(tai)(tai)陽(yang)形狀、太(tai)(tai)陽(yang)輻射的(de)(de)能(neng)(neng)(neng)(neng)(neng)量性質,光(guang)學(xue)曲面的(de)(de)自適應調控方(fang)法(fa),高(gao)密度聚集光(guang)能(neng)(neng)(neng)(neng)(neng)對(dui)物質表面微(wei)觀(guan)結構的(de)(de)影響,太(tai)(tai)陽(yang)能(neng)(neng)(neng)(neng)(neng)到化(hua)學(xue)能(neng)(neng)(neng)(neng)(neng)轉(zhuan)化(hua)存(cun)儲及(ji)反(fan)應器研究(jiu),太(tai)(tai)陽(yang)能(neng)(neng)(neng)(neng)(neng)超臨(lin)(lin)界水(shui)蒸氣(qi)發(fa)(fa)電(dian)(dian)(dian)等基(ji)礎(chu)研究(jiu)內容。在“十三五”太(tai)(tai)陽(yang)能(neng)(neng)(neng)(neng)(neng)超臨(lin)(lin)界二(er)氧化(hua)碳發(fa)(fa)電(dian)(dian)(dian)基(ji)礎(chu)研究(jiu)項目基(ji)礎(chu)上,進行20-50MWe級(ji)高(gao)溫(wen)(wen)超臨(lin)(lin)界二(er)氧化(hua)碳太(tai)(tai)陽(yang)能(neng)(neng)(neng)(neng)(neng)熱(re)發(fa)(fa)電(dian)(dian)(dian)示(shi)范研究(jiu);采用綠色傳熱(re)儲熱(re)介(jie)質的(de)(de)太(tai)(tai)陽(yang)能(neng)(neng)(neng)(neng)(neng)熱(re)發(fa)(fa)電(dian)(dian)(dian)站(zhan)(zhan)以及(ji)50MW級(ji)太(tai)(tai)陽(yang)能(neng)(neng)(neng)(neng)(neng)熱(re)化(hua)學(xue)燃氣(qi)電(dian)(dian)(dian)站(zhan)(zhan)等前沿(yan)技(ji)術(shu)研發(fa)(fa)和(he)示(shi)范。同時開展基(ji)于熱(re)力學(xue)第二(er)定律效(xiao)率的(de)(de)能(neng)(neng)(neng)(neng)(neng)量轉(zhuan)換(huan)方(fang)式研究(jiu)、太(tai)(tai)陽(yang)能(neng)(neng)(neng)(neng)(neng)聚光(guang)與高(gao)溫(wen)(wen)氫燃料(liao)電(dian)(dian)(dian)池系統(tong)耦合(he)發(fa)(fa)電(dian)(dian)(dian)技(ji)術(shu)等前沿(yan)理論研究(jiu)。
五、盡快實施單機大容量光熱發電示范項目
推(tui)動大容量、低成(cheng)本光(guang)(guang)熱(re)(re)發(fa)電(dian)項(xiang)目的應(ying)用(yong)。通過(guo)加(jia)(jia)強新(xin)裝(zhuang)備、新(xin)技術研發(fa)和試驗(yan)示(shi)范(fan)工(gong)作(zuo)進一步(bu)提升其靈活性(xing)和調(diao)節(jie)能力,加(jia)(jia)快技術改進和設備升級,提高(gao)光(guang)(guang)熱(re)(re)機組(zu)的發(fa)電(dian)效率,降低單(dan)位發(fa)電(dian)成(cheng)本,增加(jia)(jia)機組(zu)在市(shi)場(chang)上的競爭力。建議盡(jin)快實施光(guang)(guang)熱(re)(re)單(dan)機規(gui)模大、容量比例高(gao)的“光(guang)(guang)熱(re)(re)+”一體化大基地示(shi)范(fan)項(xiang)目,總結高(gao)比例“光(guang)(guang)熱(re)(re)+”大基地項(xiang)目的發(fa)電(dian)以(yi)及(ji)調(diao)峰特性(xing),將太(tai)陽能熱(re)(re)發(fa)電(dian)站規(gui)模推(tui)廣(guang)到1000MW級,助(zhu)力以(yi)新(xin)能源為主體的新(xin)型電(dian)力系統發(fa)展。
六、推進以太陽能為主的多能互補的低碳發電技術示范
太陽能(neng)(neng)高溫集熱與火(huo)電(dian)及核電(dian)的互(hu)(hu)補發電(dian)技(ji)術,與高溫燃料電(dian)池制氫技(ji)術的結(jie)合(he),與生(sheng)物質能(neng)(neng)的互(hu)(hu)補系(xi)統。特(te)別是考(kao)慮在大基地中(zhong)考(kao)慮以(yi)光(guang)熱為(wei)主(zhu),與火(huo)電(dian)結(jie)合(he)的1000MW級混合(he)電(dian)力系(xi)統技(ji)術,將電(dian)站調峰速率(lv)提高4倍,將度電(dian)煤(mei)耗降低70%。
七、對多種新型儲能發電項目進行集中示范,研究其在電網中實際發揮的作用和特性
熔(rong)鹽(yan)儲(chu)(chu)能(neng)(neng)(neng)(neng)光(guang)熱(re)發電(dian)、純電(dian)制熱(re)熔(rong)鹽(yan)儲(chu)(chu)能(neng)(neng)(neng)(neng)、壓縮(suo)(suo)空氣(qi)儲(chu)(chu)能(neng)(neng)(neng)(neng)、電(dian)化學儲(chu)(chu)能(neng)(neng)(neng)(neng)等技術(shu)(shu)都適用于(yu)電(dian)力系統大規模、長時間、長壽(shou)命的儲(chu)(chu)能(neng)(neng)(neng)(neng)調峰應用場(chang)景。在(zai)青海省或甘肅等同等資源條件(jian)下,對純熔(rong)鹽(yan)儲(chu)(chu)能(neng)(neng)(neng)(neng)光(guang)熱(re)發電(dian)以及光(guang)伏+純電(dian)制熱(re)熔(rong)鹽(yan)儲(chu)(chu)能(neng)(neng)(neng)(neng)、壓縮(suo)(suo)空氣(qi)儲(chu)(chu)能(neng)(neng)(neng)(neng)、電(dian)化學儲(chu)(chu)能(neng)(neng)(neng)(neng)等技術(shu)(shu)路線(xian)進行集中示范,研究不同季節、不同氣(qi)象(xiang)條件(jian)下各電(dian)源的發電(dian)功率(lv)特性,在(zai)項(xiang)目整體上網電(dian)力曲(qu)線(xian)相同的情(qing)況(kuang)下,對電(dian)網的實(shi)際支撐作(zuo)用。