http://kadhoai.com.cn 2026-04-26 11:29:46
三大電力集團老總“談風論電”,認為“隻有風機的技術再進一步,風電才會有一個更上一個台階的發展”。如何讓風電技術更進一步是目前急需解決的問題,否則將影響我國風電產業的發展。
美國通用電氣公司(GE)副總裁邁克爾•艾德奇表示,現有風能技術在3年後就會被淘汰,下一代的風能技術,GE會顯示出更強大的優勢。我國風電技術麵臨兩個選擇:一個選擇是等待別人把我們淘汰,然後再引進技術,從頭再來!另一種選擇是站在巨人肩上,取得後發優勢!
每mei項xiang技ji術shu的de淘tao汰tai,不bu在zai於yu後hou續xu技ji術shu有you多duo先xian進jin,而er在zai於yu技ji術shu自zi身shen的de不bu完wan善shan。我wo們men要yao做zuo的de就jiu是shi認ren識shi不bu完wan善shan,研yan究jiu不bu完wan善shan,解jie決jue不bu完wan善shan。用yong完wan善shan的de風feng電dian技ji術shu替ti代dai不bu完wan善shan的de技ji術shu,找zhao到dao了le完wan善shan技ji術shu,就jiu找zhao到dao了le“突破口”。
我國風電產業需要補貼,需要扶持,如何才能站立?如何才能奔跑?
我國風電裝機容量已位居世界第四位,裝機容量大,而發電量低,故障率高,並網困難,如何提高發電量?如何提高並網穩定性?
我國有近80家風電生產企業,我國風電產業才剛起步,風電占全國用電量份額非常小,為什麼會出現嚴重產能過剩?
風(feng)能(neng)發(fa)電(dian)出(chu)現(xian)在(zai)十(shi)九(jiu)世(shi)紀(ji)末(mo),丹(dan)麥(mai)人(ren)首(shou)先(xian)研(yan)製(zhi)了(le)風(feng)能(neng)發(fa)電(dian)機(ji),自(zi)二(er)十(shi)世(shi)紀(ji)八(ba)十(shi)年(nian)代(dai)起(qi)這(zhe)項(xiang)技(ji)術(shu)飛(fei)速(su)發(fa)展(zhan),風(feng)能(neng)發(fa)電(dian)這(zhe)種(zhong)綠(lv)色(se)能(neng)源(yuan)越(yue)來(lai)越(yue)得(de)到(dao)重(zhong)視(shi)。世(shi)界(jie)各(ge)國(guo)都(dou)出(chu)台(tai)各(ge)項(xiang)政(zheng)策(ce)大(da)力(li)扶(fu)持(chi)風(feng)電(dian)產(chan)業(ye),近(jin)幾(ji)年(nian)我(wo)國(guo)的(de)風(feng)電(dian)產(chan)業(ye)得(de)到(dao)了(le)飛(fei)速(su)發(fa)展(zhan),建(jian)起(qi)了(le)幾(ji)座(zuo)大(da)的(de)陸(lu)地(di)風(feng)電(dian)場(chang),在(zai)裝(zhuang)機(ji)容(rong)量(liang)上(shang)已(yi)位(wei)居(ju)世(shi)界(jie)第(di)四(si)位(wei),發(fa)展(zhan)規(gui)模(mo)令(ling)人(ren)注(zhu)目(mu),但(dan)發(fa)展(zhan)中(zhong)存(cun)在(zai)的(de)問(wen)題(ti)越(yue)來(lai)越(yue)突(tu)出(chu)。首(shou)先(xian)是(shi)裝(zhuang)機(ji)容(rong)量(liang)很(hen)大(da),但(dan)發(fa)電(dian)量(liang)還(hai)很(hen)低(di),有(you)效(xiao)發(fa)電(dian)時(shi)間(jian)短(duan),不(bu)能(neng)形(xing)成(cheng)對(dui)電(dian)力(li)網(wang)的(de)有(you)效(xiao)補(bu)充(chong),也(ye)不(bu)能(neng)形(xing)成(cheng)對(dui)電(dian)力(li)網(wang)的(de)穩(wen)定(ding)輸(shu)出(chu);其次是風電機並網穩定性沒有保證,特別是風電機大規模並網,對電網的衝擊和損害是非常嚴重的,必然造成並網困難;還hai有you故gu障zhang率lv很hen高gao,維wei護hu成cheng本ben大da,風feng電dian機ji的de安an全quan性xing也ye沒mei有you保bao證zheng。這zhe些xie問wen題ti是shi現xian有you風feng電dian技ji術shu與yu生sheng俱ju來lai的de問wen題ti,為wei什shen麼me這zhe些xie問wen題ti在zai歐ou美mei國guo家jia不bu明ming顯xian,而er在zai我wo國guo就jiu顯xian得de特te別bie突tu出chu。這zhe主zhu要yao是shi由you於yu在zai以yi下xia兩liang個ge方fang麵mian存cun在zai差cha異yi而er造zao成cheng的de。
最zui主zhu要yao是shi氣qi候hou差cha異yi,歐ou美mei屬shu於yu季ji風feng頻pin繁fan的de海hai洋yang性xing氣qi候hou,所suo以yi風feng能neng資zi源yuan非fei常chang豐feng富fu,風feng速su高gao,大da風feng時shi間jian長chang,風feng電dian也ye就jiu成cheng為wei一yi項xiang重zhong要yao能neng源yuan,所suo以yi歐ou美mei國guo家jia風feng電dian發fa展zhan最zui快kuai。而er我wo國guo新xin疆jiang、甘肅、內蒙古地區都屬於幹燥的高原地區,風速低、大風時間短,空氣密度小。進口風電機的設計風速一般在15m/s,低風速設計也在13m/s,而我國這些地區時間最長、最大的風速是6~8m/s,很(hen)顯(xian)然(ran)進(jin)口(kou)風(feng)電(dian)機(ji)的(de)設(she)計(ji)值(zhi)與(yu)我(wo)國(guo)實(shi)際(ji)情(qing)況(kuang)差(cha)別(bie)很(hen)大(da),再(zai)加(jia)上(shang)空(kong)氣(qi)密(mi)度(du)的(de)差(cha)別(bie),必(bi)然(ran)造(zao)成(cheng)發(fa)電(dian)量(liang)很(hen)低(di)的(de)現(xian)象(xiang)。歐(ou)美(mei)國(guo)家(jia)風(feng)電(dian)機(ji)也(ye)存(cun)在(zai)故(gu)障(zhang)率(lv)高(gao)、維wei護hu成cheng本ben大da的de問wen題ti,但dan由you於yu年nian發fa電dian時shi間jian長chang和he發fa電dian量liang較jiao大da,這zhe樣yang可ke以yi彌mi補bu維wei護hu費fei用yong帶dai來lai的de虧kui損sun。還hai有you歐ou美mei國guo家jia台tai風feng很hen少shao,而er我wo國guo沿yan海hai每mei年nian都dou有you幾ji次ci大da的de台tai風feng,台tai風feng對dui我wo國guo沿yan海hai風feng電dian場chang造zao成cheng的de損sun失shi也ye是shi巨ju大da的de,2003年13號台風“杜鵑”,2006年1號台風“珍珠”和8號台風“桑美”分別造成了廣東汕尾紅海灣風電場,南澳風電場和浙江蒼南鶴頂山風電場的風機嚴重損毀。
haiyoujiushibingwangfangshicunzaichayi,youyufengdianjibingwangwendingxingmeiyoubaozheng,oumeiguojiadoushicaiyongfensanruwangdefangshi,zhexieguojiafengdianchangguimodoujiaoxiao。dangfengsuhefengxiangbianhuahendashi,fengdianjibuwending,bunengmanzubingwangtiaojian,cishifengdianjikeyisuishituowang;風feng電dian機ji穩wen定ding後hou,又you可ke以yi隨sui時shi入ru網wang,並bing且qie歐ou洲zhou幾ji個ge國guo家jia的de電dian網wang是shi聯lian網wang的de,電dian網wang很hen強qiang,不bu會hui對dui電dian網wang造zao成cheng太tai大da衝chong擊ji。而er我wo國guo采cai用yong的de是shi大da規gui模mo並bing網wang的de方fang式shi,我wo國guo風feng能neng資zi源yuan豐feng富fu的de地di區qu主zhu要yao分fen布bu在zai“三北”(西北、東北、華北)地區和東南沿海。目前在“三北”規劃了6geqianwanqianwafengdianjidi,danzhexiedifangyoushidianwangzuiruodediqu,yinciwoguofenglifadianjiangmianlinzhedianwangbukanzhongfudewenti。muqianguojiayikaishiguihuazhinengdianwangjianshe,danshiyouyuzhexiediquchuyudianwangmoduan,rongliangtiaokongnenglijiaocha,hennanchengshoufengdiandarongliangbianhuadechongji。womentongguoyigeshujujisuanlaishuomingzhegewenti。yigeqianwanqianwajifengdianchanghuiyou500~600台風電機組,我們選取2.5MW風電機數據進行計算,風電機的牌子是德國Nordex公司N80,我們取較低數據,當風速5m/s,功率是120kw,當風速6m/s,功率是248kw。當風速變化為1m/s時,功率的變化是128kw,如果按100台風電機計算,功率變化值就達12800kw,1萬(wan)千(qian)瓦(wa)的(de)衝(chong)擊(ji)能(neng)量(liang)不(bu)知(zhi)道(dao)要(yao)多(duo)強(qiang)大(da)的(de)智(zhi)能(neng)電(dian)網(wang)才(cai)能(neng)承(cheng)受(shou)?而(er)且(qie)這(zhe)個(ge)計(ji)算(suan)值(zhi)已(yi)經(jing)很(hen)小(xiao)了(le),我(wo)們(men)是(shi)按(an)低(di)風(feng)速(su),小(xiao)的(de)變(bian)化(hua)量(liang)進(jin)行(xing)計(ji)算(suan)的(de),實(shi)際(ji)的(de)風(feng)速(su)變(bian)化(hua)要(yao)大(da)很(hen)多(duo),而(er)且(qie)風(feng)向(xiang)的(de)變(bian)化(hua)對(dui)風(feng)電(dian)機(ji)功(gong)率(lv)的(de)影(ying)響(xiang)比(bi)風(feng)速(su)還(hai)要(yao)大(da)。所(suo)以(yi),實(shi)際(ji)使(shi)用(yong)中(zhong)的(de)衝(chong)擊(ji)能(neng)量(liang)要(yao)比(bi)這(zhe)個(ge)值(zhi)大(da)很(hen)多(duo),將(jiang)是(shi)非(fei)常(chang)驚(jing)人(ren)的(de),我(wo)們(men)必(bi)須(xu)認(ren)真(zhen)對(dui)待(dai)。因(yin)此(ci)解(jie)決(jue)並(bing)網(wang)問(wen)題(ti),並(bing)不(bu)是(shi)建(jian)成(cheng)一(yi)個(ge)智(zhi)能(neng)電(dian)網(wang)那(na)麼(me)簡(jian)單(dan),而(er)是(shi)需(xu)要(yao)我(wo)們(men)對(dui)風(feng)電(dian)機(ji)性(xing)能(neng)進(jin)行(xing)全(quan)麵(mian)改(gai)進(jin)。
從(cong)以(yi)上(shang)分(fen)析(xi)可(ke)以(yi)看(kan)出(chu),目(mu)前(qian)歐(ou)美(mei)的(de)風(feng)電(dian)技(ji)術(shu)是(shi)不(bu)適(shi)合(he)我(wo)國(guo)陸(lu)地(di)使(shi)用(yong)的(de),最(zui)大(da)的(de)缺(que)點(dian)是(shi)發(fa)電(dian)效(xiao)率(lv)太(tai)低(di),三(san)級(ji)風(feng)以(yi)下(xia)基(ji)本(ben)沒(mei)有(you)發(fa)電(dian)能(neng)力(li),設(she)計(ji)風(feng)速(su)是(shi)13~15米/秒,也就是要達到七級大風才能滿負荷,這樣的大風在陸地很罕見。現有風電機年發電時間一般隻有2000~3000小時,與全年8760小時相比隻有1/3的de時shi間jian可ke以yi發fa電dian,大da部bu分fen時shi間jian成cheng了le擺bai設she,嚴yan重zhong影ying響xiang風feng電dian的de利li用yong。還hai有you台tai風feng對dui沿yan海hai風feng電dian場chang的de威wei脅xie是shi很hen大da的de,以yi前qian風feng電dian場chang規gui模mo都dou較jiao小xiao,損sun失shi也ye較jiao小xiao;現在規劃建設的風電場是以前的好幾倍,如果出現台風損毀,那造成的損失將是巨大的,我們必須認真對待。並網問題是關係到我國“陸地三峽”能否成功的大問題,現有風電機顯然是不符合並網要求的,如果性能不改善,將出現風小的時候發不出電,風大的時候又並不了網。“陸地三峽”將難以運行,損失將是巨大的。大規模並網國外也沒有成功經驗可以借鑒,象丹麥等國雖然風電占20~30%,dandoushifensanjieru,bingzhidingfengdianbingwangdaozeyangeguidinglejierudiandefengjishuliangherongliang,bingguidingjieruhetuichudebiaozhun,danmaiguojiadianwanggongsimeitianhuicongsangebutongdeqixiangyubaogongsijieshousicitianqiyubao,ranhouliyongxianjinderuanjianxitongyuceheshitianqiyubaosuoshudefenglibianhuahuiyingxiangdaofengji,yijifenxizhexiebianhuaduizhenggedianlixitongdailaideyingxiang,jinxingkuaisuderengongganyu。danshi,shijifengsuheyucefengsuwanquanwenhedeqingkuanghenshao。zhezhongbeidongde、不bu準zhun確que的de控kong製zhi方fang式shi對dui我wo國guo肯ken定ding是shi不bu適shi用yong的de,我wo國guo大da型xing的de風feng電dian場chang瞬shun間jian產chan生sheng的de衝chong擊ji電dian流liu就jiu足zu以yi讓rang電dian網wang癱tan瘓huan,不bu可ke能neng有you時shi間jian進jin行xing人ren工gong幹gan預yu。所suo以yi我wo國guo大da規gui模mo並bing網wang對dui風feng電dian機ji的de性xing能neng要yao求qiu更geng高gao,我wo們men知zhi道dao風feng是shi有you波bo動dong性xing的de,有you波bo峰feng,也ye有you波bo穀gu,間jian隔ge時shi間jian較jiao長chang的de稱cheng為wei陣zhen風feng,風feng速su的de變bian化hua必bi然ran引yin起qi風feng電dian機ji功gong率lv的de變bian化hua。我wo們men首shou先xian應ying解jie決jue風feng速su和he風feng向xiang變bian化hua對dui風feng電dian機ji的de影ying響xiang,現xian有you風feng電dian機ji是shi利li用yong葉ye片pian的de慣guan性xing能neng量liang來lai平ping滑hua功gong率lv的de波bo動dong,在zai低di風feng速su的de情qing況kuang起qi作zuo用yong,在zai高gao風feng速su情qing況kuang下xia慣guan性xing力li與yu強qiang大da的de風feng載zai相xiang比bi,好hao比bi雞ji蛋dan與yu石shi頭tou,無wu法fa與yu之zhi相xiang抗kang衡heng。最zui有you效xiao的de辦ban法fa就jiu是shi單dan獨du附fu加jia慣guan性xing儲chu能neng裝zhuang置zhi,利li用yong慣guan性xing儲chu能neng裝zhuang置zhi起qi到dao削xue峰feng填tian穀gu的de作zuo用yong,這zhe樣yang對dui穩wen定ding功gong率lv輸shu出chu是shi非fei常chang有you幫bang助zhu的de。還hai有you葉ye片pian的de性xing能neng也ye是shi需xu要yao改gai進jin的de,現xian有you葉ye片pian在zai高gao風feng速su時shi,會hui產chan生sheng強qiang風feng載zai,會hui變bian的de不bu穩wen定ding,難nan以yi控kong製zhi,造zao成cheng風feng電dian機ji功gong率lv的de急ji劇ju變bian化hua,對dui並bing網wang的de穩wen定ding性xing產chan生sheng很hen大da的de威wei脅xie。
我國的風電產業經過近2、3年nian的de飛fei速su發fa展zhan,已yi進jin入ru關guan鍵jian發fa展zhan時shi期qi。現xian在zai我wo們men已yi基ji本ben掌zhang握wo風feng電dian技ji術shu,經jing驗yan也ye不bu斷duan豐feng富fu,問wen題ti也ye都dou已yi出chu現xian。我wo們men現xian在zai應ying該gai靜jing下xia心xin來lai,分fen析xi問wen題ti、研究問題、解決問題,尋找“突破口”。fadianxiaolvdi,wendingxingheanquanxingmeiyoubaozheng,bingwangnan,zhexiewentidoushifengdianchanyedezhimingwenti,zhiyoujiejuehaozhexiewenti,cainengrangwoguofengdianchanyejiankangkuaisufazhan。xiamianwomencongfengdianjishudefazhanlichenglaixunzhaowenticunzaidegenyuan,laixunzhaojiejuewentide“突破口”。