Nekufambira mberi kwakasimba kweUHV AC / DC yekuvaka purojekiti yekufambisa, mhedzisiro yekutsvagisa yeUHV yekufambisa magetsi uye tekinoroji yekushandura iri kuwedzera kuwanda, iyo inopa rutsigiro rwakasimba rwesainzi uye tekinoroji pakuvakwa kwebhizimusi repasi rose rinotungamira simba reInternet rine maitiro eChinese.Nekukurumidza kuvandudzwa kwegetsi remagetsi, dambudziko renguva pfupi-yedunhu rave zvishoma nezvishoma rave chinhu chakakurumbira chinotadzisa kukura kwemagetsi emagetsi mutoro uye kuvandudzwa kwemagetsi emagetsi.
Kupwanya kwepamusoro-voltage high-power circuit breaker inogadzirisa zvakananga kuchengetedzwa uye kuvimbika kwebasa renguva refu remagetsi ekufambisa magetsi.Kubva 2016, tichivimba nehuwandu hwesainzi uye tekinoroji mapurojekiti eState Grid Co., Ltd., simba repasi rose Internet Research Institute Co., Ltd. uye PingGao Group Co., Ltd. vakabudirira kugadzira nyowani yepamusoro-inoshanda graphene yakagadziridzwa magetsi kusangana. zvigadzirwa mushure memakore mashanu ekutsvagisa kwesainzi.Izvi zvakakosha zvikuru kugadzirisa dambudziko redunhu pfupi rinopfuura mwero uye kuona kushanda kwakachengeteka uye kwakagadzikana kweAC / DC UHV hybrid magetsi grid.
Tsvagiridzo yekusimudzira yedunhu breaker zvinhu zvine chinangwa pane zvakakosha zvinodiwa
Zvinoenderana nenhamba dzakakodzera, panguva yepamusoro yekushandiswa kwemagetsi muzhizha ra2020, iyo yakanyanya kupfupi-yedunhu ikozvino yezvimwe zviteshi munzvimbo dzekushanda dzeState Grid neChina Southern Power Grid ichasvika kana kutopfuura 63 Ka.Maererano nehuwandu hweState Grid Corporation yeChina, mumakore achangopfuura, pakati pekukundikana kwe330kV uye pamusoro peUHV substation midziyo munzvimbo yebhizimisi yekambani, maererano nemhando yezvigadzirwa, nzendo dzemhosva dzinokonzerwa negesi insulated simbi yakavharwa switchgear ( GIS) nemidziyo yakasanganiswa yekugovera (HGIS) inosvika 27.5%, macircuit breaker anoita 16.5%, matransformer neazvino matransformer anoita 13.8%, Sekondari midziyo uye bhazi inosvika 8.3%, reactor inosvika 4,6%, musungwa anotora 3,7% %, chinodimbura uye tsvimbo yemheni yakaverengera 1.8%.Zvinogona kuonekwa kuti GIS, circuit breaker, transformer uye transformer yazvino ndiyo midziyo huru inokonzera kukanganisa rwendo, inotora 71.6% yerwendo rwose.
Kuongororwa kwezvikonzero zvekukanganisa kunoratidza kuti matambudziko emhando yekusangana, bushing uye zvimwe zvikamu uye yakashata yekuisa maitiro ndizvo zvinhu zvikuru zvinotungamira kune kukanganisa kwedunhu breaker.Munguva yekushanda kweSF6 circuit breaker kwenguva dzakawanda, inrush yazvino kukukurwa kwakapetwa kakati wandei kupfuura yakayerwa ikozvino uye kupfeka kwemuchina pakati peanofamba uye static arc contacts zvinokonzeresa deformation uye kuburitsa simbi vapor, iyo inokuvadza kushanda kwesimbi. iyo arc yekudzima kamuri.
Munguva yePurogiramu yeMakore Mashanu yegumi nemana, Dunhu reQinghai rinoronga kuwedzera huwandu hwezviteshi zvidiki zviviri zve500kV kuti uwedzere kutakurwa kwemagetsi mapfupi kubva pa63kA kusvika pa80kA.Kana iyo yedunhu inotyora zvinhu ikakwidziridzwa, huwandu hwe substation hunogona kuwedzerwa zvakananga, uye mutengo wakakura wekuwedzera substation unogona kuchengetedzwa.Nguva dzekupwanya dzemagetsi akakwira uye hombe yedunhu redunhu rinonyanya kudzorwa nehupenyu hwemabatiki emagetsi muparadzi wedunhu.Parizvino, kuvandudzwa kwemagetsi ekubatisa emagetsi emagetsi emagetsi akakwira muChina anonyanya kuenderana nehunyanzvi nzira yemhangura tungsten alloy zvinhu.Domestic copper tungsten alloy magetsi ekubatanidza zvigadzirwa hazvigone kusangana nezvinodiwa zve Ultra-yakakwirira uye Ultra-yakakwira voltage engineering maapplication maererano nearc ablation kuramba uye kupokana uye kupfeka kuramba.Kana ichinge yashandiswa kupfuura yehupenyu hwesevhisi, inotarirwa kupinzwazve, iyo inotyisidzira zvakananga kushanda kwekudzivirira kwemidziyo yemagetsi uye inokonzera njodzi huru yakavanzika kune yakachengeteka kushanda kwegidhi remagetsi.Iyo mhangura tungsten alloy yemagetsi yekubata zvigadzirwa musevhisi zvine yakaderera kuchinjika uye kureba, uye zviri nyore kukundikana uye kutsemuka mukuita chiito, uye kushaikwa kwekubvisa ablation.Munguva yearc ablation process, mhangura iri nyore kuunganidza uye kukura, izvo zvinotungamira mukusangana nekupwanya kutadza.Naizvozvo, zvakakosha kusimudzira zvinobudirira zviratidzo zvemakiyi ekuita kwemagetsi ekubata zvinhu, senge kupfeka kuramba, conductivity, anti welding, anti arc erosion, kuderedza kutadza kweyero yedunhu breaker uye kuchengetedza kushanda kwakachengeteka uye kwakagadzikana kwesimba. grid.
Chen Xin, director weInstitute of materials, Academia Sinica, akati: "parizvino, kana iyo pfupi-circuit yegedhi yemagetsi ichipfuura simba rekupwanya redunhu, iyo pfupi-circuit ikozvino inodarika mwero, iyo inokanganisa zvakanyanya. Kuvimbika kwekushanda kwegidhi remagetsi, uye inoisa kumberi kwepamusoro zvinodiwa pakupwanya kweanopwanya wedunhu uye kuramba kweablation kweiyo yekubata. Mushure mekunge vanobatika musevhisi vagurwa vakazara zvakakwana nguva zhinji, arcing inokuvadzwa zvakanyanya. saka zvakakosha kuita gadziriso yakakwana, iri kure nekusangana nekuchengetedza mahara zvinodiwa zvehupenyu chaihwo hweSF6 circuit breakers. pre breakdown arc isati yavhara, uye imwe yacho ndeyekupfeka kwemuchina mushure mekunge arc yekubata zvinhu yave nyoro mushure mekubvisa.Izvo zvinodikanwa kuisa mberi nzira nyowani yehunyanzvi yekuvandudza zvinobudirira makiyi ekuita indexes emagetsi ekubata zvinhu" Tekinoroji inoda kugara ichigadziriswa uye kuvandudzwa.Tinofanira kubata zvakasimba danho racho mumaoko edu."Chen Xin akadaro.
Mukutarisana nekudiwa kwekukurumidzira kweiyo nyika simba rekufambisa uye shanduko yemidziyo yekusimudzira yemagetsi ekubatanidza zvinhu zvemukati mechikamu cheyakakwira-voltage circuit breaker, kubva muna 2016, Institute of magetsi matsva eJoint Research Institute, European Institute, iyo yakabatana Pinggao boka uye mamwe mayuniti akabatana akaita tsvakiridzo yehunyanzvi pane itsva graphene yakagadziridzwa mhangura yakavakirwa pamagetsi kuonana zvinhu, uye yakaitwa mubatanidzwa wenyika dzakawanda uchivimba neEuropean Institute neYunivhesiti yeManchester, UK.Batsira kuvandudza mashandiro eiyo high voltage circuit breaker.
Chikwata chinoshanda pamwe chete kugadzirisa akati wandei matambudziko ehunyanzvi
Synergistic kunatsiridza kwearc ablation kuramba uye kukwenya uye kupfeka kuramba ndiyo kiyi yekugadzirwa kwakawanda kwekuita kwepamusoro mabatiro emagetsi.Tsvagiridzo yeakakwira-voltage magetsi ekubatanidza zvinhu munyika dzekunze akatanga kare, uye tekinoroji yakura, asi iyo yakakosha tekinoroji yakavharirwa kunyika yedu.Zvichivimba nehuwandu hwesainzi uye tekinoroji mapurojekiti ekambani, timu yeprojekiti, yakabatana nekunze R & D kugona, maindasitiri eboka remhando yekuongororwa uye kuratidza mashandisirwo emakambani emagetsi epurovhinzi, yakagadzira timu yechidiki yesainzi uye tekinoroji ine "80". " musana semuviri mukuru.
Nhengo dzakakosha dzechikwata dzakadzika midzi muR & D mutsara wepamberi muR & D nhanho yemagadzirirwo emidziyo uye maitiro ekugadzirira;Muchikamu chekugadzira muyedzo, kambani yakamira kumugadziri kugadzirisa matambudziko ehunyanzvi pasaiti, uye yakazopaza nekuomerwa kwechiyero pakati pezvivakwa zvezvinhu, kuumbwa, kurongeka kwesangano uye maitiro ekugadzirira, uye yakaita budiriro mune yakakosha tekinoroji. yekuvandudza kushanda kwezvinhu;Muchikamu chekuyedzwa kwemhando, ndakagara muPinggao boka high voltage test station, ndakakurukura nePinggao boka tekinoroji nzvimbo uye yakakwira voltage station R & D timu kwenguva dzakawanda, ndakagadziriswa kakawanda, uye pakupedzisira ndakawana kusvetuka kwepamusoro mukupwanya kwepamusoro. voltage high current circuit breaker hupenyu hwemagetsi.
Nekuenderera mberi nekuedza, timu yekutsvagisa yakabudirira kuwana iyo yekugadzira-yepamusoro-inoshanda graphene yakasimbisa mhangura yakavakirwa composite yemagetsi ekubatanidza zvinhu, yakaputswa kuburikidza neakakosha matekinoroji egraphene magetsi ekubata zvinhu zvinotungamira dhizaini maitiro uye activation sintering infiltration yakasanganiswa kuumbwa, uye yakaona iyo indasitiri. kugadzirira kweakawanda modhi graphene yakagadziridzwa magetsi ekubatanidza zvinhu.Kekutanga, timu yakagadzira graphene yakagadziridzwa copper tungsten alloy magetsi kusangana nesarufa hexafluoride circuit breaker yakatarisana ne252kV uye pamusoro.Iwo akakosha maratidziro ekuita senge conductivity uye kubhenda simba zviri nani pane izvo zvezvigadzirwa zvinoshanda, zvinovandudza zvakanyanya hupenyu hwemagetsi eiyo inoshanda yakakwira-voltage circuit breaker, ichizadza gap rehunyanzvi mumunda wegraphene yakagadziridzwa yakakwira-voltage switch yemagetsi kuonana. , Inovandudza tsvakiridzo yekambani yakazvimiririra uye nhanho yekusimudzira yeazvino uye yakakura kugona chinja magetsi emagetsi, uye inobatsira kuve nechokwadi chekuchengetedza uye kwakavimbika kushanda kwesimba system.
Mhedzisiro yepurojekiti inotsigira dhizaini yakazvimirira uye kushandiswa kwenzvimbo yedunhu rebreaker
Kubva Gumiguru 29 kusvika 31, 2020, maererano neyakakwana yekuongorora chirongwa chakagadzirwa neiyo yakabatana yekutsvagisa Institute uye boka rePinggao mushure mekukurukurirana kwakawanda, iyo nyowani yakavhurika column mhando 252kV / 63kA SF6 wedunhu breaker yePinggao boka zvichibva pamagetsi kubata zvakabudirira kamakumi maviri. yenguva imwe chete yakazara yekutyora simba.Zhong Jianying, injinjiniya mukuru weboka rePinggao, akati: "Maererano nemaonero eboka renyanzvi rekugamuchira chirongwa, tekinoroji yese yeprojekiti yasvika padanho repamusoro repasi rose, uye hukuru hwehunyanzvi zviratidzo hwasvika padanho rinotungamira pasi rose. kuita mabhindauko muhukuru hwetekinoroji tinogona kubatsira zvirinani mabhizinesi kudzora mitengo uye kuona kupihwa kwezvinhu zvakakosha. Mune ramangwana, isu tinofanirwa kuramba tichisimbisa tsvakiridzo yeinjiniya yemasisitimu uye nekusimudzira shanduko yeindasitiri yezvakabudirira zvesainzi. "
Kubudirira uku kunotsigira dhizaini yakazvimiririra, kusimudzira uye kushandiswa kwepamba kwe252kV porcelain post circuit breaker ine yakayereswa kupfupika kwedunhu kutyora ye63kA uye yakayerwa ikozvino ye6300A muPinggao boka.252kV / 63kA danda redunhu redunhu rine hombe kudiwa kwemusika uye yakakura yekuvhara nzvimbo.Kubudirira kusimudzira kwerudzi urwu rwekutyora kwedunhu kunoita basa rakakosha mukuwedzera misika yepamba neyekunze yevanopwanya matunhu edzimba, izvo zvinobatsira kuvandudza R & D simba uye tekinoroji yekambani mumunda wepamusoro-yekupedzisira switchgear. , uye ine zvakanaka zvemagariro uye zveupfumi.
Iko kudiwa kwemusika kweakakwira-voltage magetsi ekubata muChina angangoita 300000 seti pagore, uye yakazara gore negore kutengesa kwemusika kuri pedyo ne1.5 bhiriyoni yuan.Zvitsva zvakakwirira zvemagetsi zvekusangana nazvo zvine tarisiro yemusika wakafara mune ramangwana kusimudzira kwemagetsi grid.Parizvino, kubudirira kwepurojekiti kwasvika kubatana uye chinangwa chekushandura nePinggao, Xikai, taikai uye mamwe mabhizinesi e-high-voltage switch, achiisa hwaro hwechinotevera chiratidziro chekushandisa uye kukwidziridzwa kwakakura mumunda we-ultra-high voltage uye Ultra- high voltage power transmission uye shanduko.Chikwata cheprojekiti chicharamba chakatarisa kumuganhu wesimba uye simba sainzi uye tekinoroji, ichiramba ichisimbisa hunyanzvi uye kudzidzira, uye ichienderera mberi nekusimudzira yakazvimirira tsvakiridzo nekusimudzira uye kushandiswa kwenzvimbo kwenzvimbo dzepakati zvekushandisa zvemagetsi ekupedzisira.
Nguva yekutumira: Jul-08-2021