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Kulumikizana kwamagetsi kwa graphene komwe kumapangidwa ndi bungwe lofufuza kafukufuku kukuyembekezeka kuchepetsa kwambiri kulephera kwa ma breaker ambiri

Ndi kupita patsogolo kosasunthika kwa ntchito yomanga pulojekiti ya UHV AC / DC, zotsatira za kafukufuku waukadaulo wotumizira mphamvu za UHV ndi ukadaulo wakusintha zikuchulukirachulukira, zomwe zimapereka chithandizo champhamvu chasayansi ndiukadaulo pomanga bizinesi yotsogola yapadziko lonse lapansi yamagetsi yokhala ndi mawonekedwe aku China.Ndi kukula kofulumira kwa gridi yamagetsi, vuto lachidule chamagetsi pang'onopang'ono lakhala chinthu chodziwika bwino chomwe chikulepheretsa kukula kwa gridi yamagetsi komanso kukula kwa gridi yamagetsi.

Kuthyola mphamvu ya high-voltage high-power circuit breaker mwachindunji kumatsimikizira chitetezo ndi kudalirika kwa utumiki wautali wa mizere yotumizira mphamvu.Kuyambira 2016, kudalira ntchito zingapo za sayansi ndi ukadaulo wa State Grid Co., Ltd., padziko lonse lapansi mphamvu Internet Research Institute Co., Ltd. ndi PingGao Group Co., Ltd. zopangidwa pambuyo pa zaka zisanu za kafukufuku wa sayansi.Izi ndizofunikira kwambiri kuti tithane ndi vuto laling'ono laling'ono lopitilira muyezo ndikuwonetsetsa kuti AC / DC UHV hybrid power grid

Kafukufuku wokwezera zida za ma circuit breaker potengera zofunikira

Malinga ndi ziwerengero zoyenera, panthawi yochuluka yogwiritsira ntchito mphamvu m'chilimwe cha 2020, kuwonjezereka kwafupipafupi kwafupipafupi kwa malo ena ogwirira ntchito ku State Grid ndi China Southern Power Grid kudzafika kapena kupitirira 63 Ka.Malinga ndi ziwerengero za State Grid Corporation of China, m'zaka zaposachedwapa, mwa zolephera za 330kV ndi pamwamba UHV substation zipangizo m'dera malonda kampani, malinga ndi mtundu wa zida, zolakwa maulendo chifukwa mpweya insulated zitsulo anatsekeredwa switchgear ( GIS) ndi zida zogawa zosakanizidwa (HGIS) zimakhala pafupifupi 27.5%, ophwanya dera amawerengera 16.5%, osinthira ndi ma transformer apano amawerengera 13.8%, zida za Sekondale ndi mabasi amawerengera 8,3%, riyakitala imawerengera 4.6%, womanga amawerengera 3,7% %, cholumikizira ndi ndodo yamphezi ndi 1.8%.Zitha kuwoneka kuti GIS, circuit breaker, transformer ndi transformer yamakono ndizo zida zazikulu zomwe zimayambitsa ulendo wolakwika, zomwe zimawerengera 71.6% ya ulendo wonse.

Kuwunika kwazomwe zimayambitsa zolakwika kukuwonetsa kuti zovuta zamtundu wa kukhudzana, bushing ndi magawo ena komanso njira yoyikiratu ndiyomwe imayambitsa vuto la ophwanya dera.Pakugwira ntchito kwa SF6 circuit breaker nthawi zambiri, kukokoloka kwaposachedwa kuwirikiza kangapo kuposa komwe kudavotera komanso kuvala kwamakina pakati pa zolumikizira zoyenda ndi zosunthika kumayambitsa kukhudzana ndi kutulutsa mpweya wachitsulo, womwe ungawononge ntchito yotsekera. chipinda chozimitsira arc.

Munthawi ya Mapulani a Zaka 14, Chigawo cha Qinghai chikukonzekera kukulitsa mphamvu ya masiteshoni awiri a 500kV kuti awonjezere katundu wanthawi yayitali kuchokera pa 63kA yomwe ilipo mpaka 80kA.Ngati zida zophwanyira dera zikwezedwa, mphamvu ya substation imatha kukulitsidwa mwachindunji, ndipo mtengo waukulu wakukulitsa kagawo kakang'ono ukhoza kupulumutsidwa.Nthawi zosweka zamagetsi okwera kwambiri komanso chowotcha chamagetsi chachikulu chimayendetsedwa makamaka ndi moyo wazomwe zimalumikizana ndi magetsi mu chophwanyira dera.Pakali pano, chitukuko cha kulankhula magetsi kwa mkulu voteji breakers mu China makamaka zochokera luso njira ya mkuwa tungsten zipangizo aloyi.Zogulitsa zamagetsi zamkuwa za mkuwa za tungsten sizingakwaniritse zofunikira zaukadaulo wapamwamba kwambiri komanso wapamwamba kwambiri wamagetsi okhudzana ndi kukana kwa arc ablation ndi mikangano ndi kukana kuvala.Akagwiritsidwa ntchito mopitilira moyo wautumiki, amatha kulowetsedwanso, zomwe zimawopseza mwachindunji magwiridwe antchito a zida zamagetsi ndikuyambitsa ngozi yobisika yogwira ntchito yotetezeka ya gridi yamagetsi.Zinthu zamagetsi zamagetsi zomwe zimagwiritsidwa ntchito ndi copper tungsten alloy zomwe zili muutumiki zimakhala ndi kusinthasintha kochepa komanso kutalika, ndipo ndizosavuta kulephera komanso kusweka pochita, komanso kusowa kwa kukana kwa ablation.Panthawi ya arc ablation, mkuwa ndi wosavuta kudziunjikira ndikukula, zomwe zimabweretsa kulephera kusokoneza.Chifukwa chake, ndikofunikira kwambiri kuwongolera bwino mawonekedwe ofunikira azinthu zolumikizirana ndi magetsi, monga kukana kuvala, ma conductivity, anti kuwotcherera, kukokoloka kwa anti arc, kuchepetsa kulephera kwa ophwanya dera ndikusunga magwiridwe antchito otetezeka komanso okhazikika amphamvu. grid.

Chen Xin, mkulu wa Institute of materials, Academia Sinica, anati: "Pakadali pano, pamene mphamvu yaifupi ya gridi yamagetsi idutsa mphamvu yowonongeka kwa dera lophwanyidwa, mphamvu yachidule imaposa muyezo, womwe umakhudza kwambiri. Kudalirika kwa magwiridwe antchito a gridi yamagetsi, ndikuyika patsogolo zofunikira pakuphwanya kwa wophwanya dera komanso kukana kwa kukhudzana. kotero m'pofunika kuchita yokonza mabuku, amene ali kutali ndi kukumana yokonza ufulu amafuna za moyo weniweniwo mkombero wa SF6 ophwanya dera. " Iye ananena kuti kukokoloka kwa kukhudzana makamaka amachokera mbali ziwiri: mmodzi ndi ablation wa Kuwonongeka kusanachitike kusanatseke, ndipo chinacho ndi kuvala kwamakina pambuyo poti zida zolumikizirana za arc zimakhala zofewa pambuyo pochotsa.Ndikofunikira kukhazikitsa njira yatsopano yaukadaulo kuti muwongolere bwino magawo ofunikira azinthu zamagetsi" Zipangizo zamakono ziyenera kukonzedwa mosalekeza ndikusinthidwa.Tizigwira molimba mtima zimene tayamba kuchita m'manja mwathu."Chen Xin adati.

Poyang'anizana ndi kufunika kwachangu kwa dziko mphamvu kufala ndi kusintha zida kukweza kwa zipangizo kukhudzana magetsi a zigawo zikuluzikulu za mkulu-voteji dera wosweka, kuyambira 2016, Institute of magetsi zipangizo zatsopano za Joint Research Institute, European Institute, olowa Pinggao gulu ndi mayunitsi ena pamodzi anachita kafukufuku luso latsopano graphene kusinthidwa mkuwa zochokera kukhudzana zipangizo zamagetsi, ndipo ikuchitika mgwirizano mayiko kudalira Institute European ndi University of Manchester, UK.Imathandizira kukonza magwiridwe antchito a high voltage circuit breaker.

Gulu limagwira ntchito limodzi kuti lithetse mavuto angapo aukadaulo

Kuwongolera kwa synergistic kwa arc ablation resistance ndi kukangana ndi kuvala kukana ndiye chinsinsi chopanga zambiri zamagetsi zamagetsi.Kafukufuku wokhudzana ndi zida zamagetsi zamagetsi zamphamvu kwambiri m'maiko akunja adayamba kale, ndipo ukadaulo ndi wokhwima, koma ukadaulo wapakatikati watsekedwa kudziko lathu.Kudalira ntchito zingapo zasayansi ndi luso la kampaniyo, gulu la polojekitiyo, mogwirizana ndi kuthekera kwakunja kwa R & D, kutsimikizika kwamtundu wamagulu amakampani ndikuwonetsa ntchito zamakampani amagetsi akuchigawo, yakhazikitsa gulu laling'ono la sayansi ndiukadaulo ndi "80". "msana ngati thupi lalikulu.

Mamembala ofunikira a gululo adakhazikika pamzere wakutsogolo wa R & D mu gawo la R & D la makina azinthu ndi njira yokonzekera;Mu gawo loyesa kupanga, kampaniyo idayimilira wopangayo kuti athetse mavuto aukadaulo pamalowo, ndipo pamapeto pake adadutsa vuto la kusanja bwino pakati pa zinthu zakuthupi, kapangidwe kake, kapangidwe ka bungwe ndikukonzekera, ndipo adachita bwino kwambiri ukadaulo wofunikira. kuwongolera magwiridwe antchito azinthu;Mu siteji ya mayeso mtundu, ndinakhala mu Pinggao gulu mkulu voteji mayeso siteshoni, kukambirana ndi Pinggao gulu luso pakati ndi mkulu voteji siteshoni R & D gulu kwa nthawi zambiri, debugged mobwerezabwereza, ndipo potsiriza akwaniritsa ndi Mkhalidwe analumpha mu kuswa mphamvu mkulu. voltage high current circuit breaker moyo wamagetsi.

Ndi khama mosalekeza, gulu kafukufuku bwinobwino analandira chiphunzitso dongosolo mkulu-ntchito graphene analimbitsa mkuwa zochokera gulu gulu magetsi kukhudzana zipangizo, anathyoledwa umisiri kiyi wa graphene magetsi kukhudzana zipangizo malangizo malangizo ndondomeko ndi kutsegula sintering kulowerera Infiltration Integrated akamaumba, ndipo anazindikira mafakitale Kukonzekera kwamitundu yambiri yama graphene zosinthidwa zamagetsi zamagetsi.Kwa nthawi yoyamba, gululi linapanga ma graphene osintha magetsi a copper tungsten alloy a sulfur hexafluoride circuit breaker moyang'anizana ndi 252kV ndi kupitilira apo.Zizindikiro zazikuluzikulu zogwirira ntchito monga ma conductivity ndi mphamvu yopindika ndi zabwino kuposa zomwe zimagwira ntchito, zimasintha kwambiri moyo wamagetsi wamagetsi othamanga kwambiri, kudzaza kusiyana kwaumisiri m'munda wa graphene wosinthidwa high-voltage switch switch , Iwo bwino kampani palokha kafukufuku ndi mlingo chitukuko cha mkulu panopa ndi lalikulu mphamvu lophimba kulankhula magetsi, ndi kuthandiza kuonetsetsa otetezeka ndi odalirika ntchito dongosolo mphamvu.

Zotsatira za pulojekitiyi zimathandizira kupanga kodziyimira pawokha komanso kugwiritsa ntchito kumasulira kwa circuit breaker

Kuchokera pa Okutobala 29 mpaka 31, 2020, malinga ndi chiwembu chotsimikizika chopangidwa ndi bungwe lofufuza kafukufuku ndi gulu la Pinggao pambuyo pa zokambirana zambiri, gawo latsopano lotseguka lamtundu wa 252kV / 63kA SF6 wosweka wa gulu la Pinggao potengera kulumikizidwa kwamagetsi kwachitika bwino nthawi 20. wa nthawi imodzi zonse zosweka.Zhong Jianying, injiniya wamkulu wa gulu la Pinggao, adati: "Malinga ndi malingaliro a gulu la akatswiri ovomerezeka a polojekiti, ukadaulo wonse wa ntchitoyi wafika pamlingo wapamwamba wapadziko lonse lapansi, ndipo zizindikiro zazikulu zaukadaulo zafika pamlingo wotsogola padziko lonse lapansi. Kupititsa patsogolo umisiri wofunikira kungathandize kwambiri mabizinesi kuwongolera ndalama ndikuwonetsetsa kuti zinthu zikuyenda bwino.

Kupindula kumeneku kumathandizira kwambiri mapangidwe odziyimira pawokha, chitukuko ndi ntchito zapakhomo za 252kV porcelain porcelain post circuit breaker yomwe idavoteledwa ndi 63kA ndipo idavotera 6300A pagulu la Pinggao.252kV / 63kA pole type breaker ili ndi msika waukulu komanso malo ofikira ambiri.Kukula bwino kwa mtundu uwu wa ophwanya dera kumagwira ntchito yofunika kwambiri pakupititsa patsogolo misika yapakhomo ndi yakunja ya ophwanya dera, zomwe zimathandiza kupititsa patsogolo mphamvu ya R & D ndi luso lamakampani pantchito ya ma switchgear apamwamba kwambiri. , ndipo ali ndi ubwino wa chikhalidwe ndi zachuma.

Kufunika kwa msika wamagetsi othamanga kwambiri ku China ndi pafupifupi ma seti 300000 pachaka, ndipo malonda onse apamsika amagulitsa pafupifupi yuan biliyoni 1.5.Zida zatsopano zolumikizirana ndi magetsi okwera kwambiri zili ndi chiyembekezo chachikulu chamsika pakupanga mtsogolo kwa gridi yamagetsi.Pakalipano, zomwe polojekitiyi ikuchita yafika mgwirizano ndi kusintha cholinga ndi Pinggao, Xikai, taikai ndi mabizinesi ena apamwamba-voltage lophimba, kuyala maziko kwa wotsatira chionetsero ntchito ndi kukwezeleza yaikulu m'munda wa kopitilira muyeso voteji ndi kopitilira muyeso- kufala kwamphamvu kwamagetsi ndi kusintha.Gulu la polojekitiyi lidzapitirizabe kuyang'ana malire a mphamvu ndi mphamvu za sayansi ndi zamakono, kulimbikitsa mosalekeza zatsopano ndi machitidwe, ndikupitiriza kulimbikitsa kafukufuku wodziimira payekha ndi chitukuko ndi kugwiritsa ntchito malo azinthu zapakati pa zipangizo zamagetsi zamagetsi.


Nthawi yotumiza: Jul-08-2021