MaTransformer Akakosha eHVDC Flex: Kugonesa Simba reMhepo reOffshore Riri Kure

Nhanganyaya

Sezvo mafekitori emhepo ari mugungwa achifambira mberi kubva kumahombekombe—kupfuura makiromita zana achipinda mumvura yakadzika—kutakurwa kweAC kwechinyakare kunosvika pamiganhu yayo yehunyanzvi. Tambo dzepasi pegungwa dzinoshanda sema capacitor makuru, dzichishandisa simba rekuita uye zvichiita kuti kutakurwa kwesimba kushande zvakanaka munzvimbo refu. Apa ndipo panodiwa tekinoroji yekufambisa simba remagetsi ine simba guru (HVDC), uye pamwe chete nayo, kirasi itsva yema transformers akasarudzika.

Chinyorwa chino chinoongorora basa rematransformer aya mukufambiswa kwesimba remhepo kubva kunze kwenyika uye zvinodiwa zvehunyanzvi zvinoita kuti asiyane nemayuniti akajairika.

Chikamu Chekutanga: Sei HVDC Ichifanira Kuchinjika Kuti Ishande Nemhepo Yakadzika Mugungwa?

Dambudziko reCapacitance.Kana simba reAC richipfuura nemumatambo epasi pemvura, tambo yacho pachayo inoshanda se capacitor. Pamberi pemakiromita angangoita makumi manomwe, simba re reactive rinoshandiswa netambo rinova rakakura zvekuti simba shoma rinosvika kumahombekombe. Kutumirwa kweHVDC kunobvisa dambudziko iri—direct current haigadziri capacitance effect, zvichibvumira kutumirwa kwakanaka kwemakiromita mazana.

Zvakanakira zveDC zvinochinjika.Kusiyana neHVDC yechinyakare, iyo inoshandisa rutsigiro rweAC grid rwakasimba, HVDC inochinjika (kana kuti "HVDC Flex") inoshandisa ma voltage-source converters anogona kudzora ega simba rinoita basa uye rinoita basa. Izvi zvinoita kuti ive yakakodzera kubatanidza ma variable resources anogona kushandiswazve semhepo yekunze, iyo isina rotating inertia yema power plants echinyakare.

Chikamu Chechipiri: Matransformer Akakosha Anodiwa

Masisitimu eHVDC Flex anoda mhando dzakasiyana dzematransformer ane hunyanzvi, imwe neimwe ichitarisana nematambudziko akasiyana.

Vashanduri vemaConverter.Izvi zvinobatanidza network yekuunganidza AC nemavharuvhu eDC converter. Pakushandiswa kwemvura yakadzika, zvinofanirwa kubata zvese AC neDC stress panguva imwe chete—mamiriro ezvinhu anomanikidza zvakanyanya masisitimu ekudzivirira kupisa. Matembiricha emagetsi ari kuwedzera zvishoma nezvishoma; mapurojekiti achangoburwa asvika ±500 kV, zvichida matransformer anokwanisa kutsungirira minda yemagetsi yeAC neDC yakabatana.

Matransformer ePuratifomu yeOffshore.Zvichiiswa pamapuratifomu ari kure negungwa, mayuniti aya anofanira kutsungirira mamiriro ekunze akaipisisa: ngura yemunyu, hunyoro hwakawanda, kudedera kubva pakushanda kwemafungu, uye nzvimbo dzakamanikana. Kuedzwa kwemunyu wemuchina wekushandura mugungwa kunowanzo tora maawa 1,440 - kaviri kana katatu nguva yemichina yakajairwa.

Zvinodiwa pakugadzira zvinhu zviri nyore.Huremu hwese huri papuratifomu iri kunze kwenyika hunowedzera mari yakawanda kunheyo nengarava dzekuisa. Mainjiniya anotevedzera magadzirirwo madiki, akareruka pasina kukanganisa kuvimbika. Zvitsva zvitsva zvinosanganisira masisitimu ekutonhodza akagadziriswa uye zvinhu zvepamusoro zvinodzivirira kupisa zvinoderedza saizi yetransformer uku zvichiramba zvichiita basa.

Chikamu Chechitatu: Matambudziko Ehunyanzvi

Kurongeka kweInsulation.Kusanganiswa kwemavoltage eAC neDC mumatransformer ekushandura kunoita kuti magetsi akwanise kupararira zvakanyanya. Macharges enzvimbo anogona kuungana muzvinhu zvinodzivirira kupisa pasi pekumanikidzwa kweDC, zvichikonzera kuburitswa kwemagetsi zvishoma nezvishoma uye kutadza kushanda. Kugadzira modhi yepamusoro uchishandisa finite element analysis kunobatsira mainjiniya kugadzira masisitimu ekudzivirira kupisa anotarisira izvi.

Kusimba kweMakanika.Matransformer ekunze kwegungwa anofanira kurarama nekufamba negungwa, kuiswa mumamiriro ezvinhu akaoma, uye makumi emakore ekudengenyeka kunoramba kuchiitika. Zvivako zvematangi zvakasimbiswa, masisitimu ekubatanidza akasimbiswa, uye kusarudzwa kwakanyatsonaka kwezvikamu zvinovimbisa kusimba kwemuchina muhupenyu hwese hwechinhu chacho.

Kutonhodza munzvimbo dzakavharirwa.Mapuratifomu ekunze kwegungwa ane nzvimbo shoma yemidziyo yekutonhodza. Vagadziri vanovandudza mashandiro ekupisa kuburikidza nekugadzira modhi yemhando yepamusoro yefluid dynamics, vachiona kuti matransformer anogona kushanda zvakakwana kunyangwe munzvimbo dzinopisa, dzakavharirwa.

Chikamu Chechina: Chirongwa Chinokosha

Chirongwa chemhepo cheGuangdong Yangjiang Sanshan Island chiri kufambira mberi zvikuru munyaya iyi. Chiri makiromita anopfuura zana kubva kumahombekombe eChina, chirongwa ichi chichapa simba rakachena rinosvika 2,000 MW kuGuangdong-Hong Kong-Macao Greater Bay Area, richibatsira mhuri dzinosvika mamiriyoni 2.4.

Pakati payo pane ma transformer eDC anochinjika e±500 kV—mayuniti makuru rimwe nerimwe rinorema matani 380, akafanana nemotokari dzinotakura vanhu 200. Ma transformer aya anowedzera simba kubva pa66 kV kusvika ku500 kV AC asati ashandurwa kuita DC kuti atumirwe. Chirongwa ichi chakatora makore anopfuura gumi ekutsvaga nekuvandudza, kukunda matambudziko ekudzivirira munyu, dhizaini yekudengenyeka kwenyika, uye kugadzirisa nzvimbo.

Chikamu Chishanu: Nzira dzeMunguva Yemberi

Mhepo yekunze kwenyika painowedzera kusvika mumvura yakadzika, huwandu hwemagetsi hunoramba huchikwira. Nzira dzekushanda dzinoratidza kuti magetsi e525 kV uye DC akakwira, zvichireva kuti ma transformer ane simba guru rekudzivirira kupisa uye simba rakawanda.

Kuedza kwekugadzirisa mamiriro ekunze kuri kufambira mberiwo. Mitemo yepasi rose yakaita seIEC 60076-16 inonyanya kutaura nezvema transformer ekushandisa ma turbine emhepo, ichipa gwara rekuyedza uye zvinodiwa pakushanda kwenzvimbo dzekunze kwenyika.

Mhedziso

Matransformer emhando yepamusoro eHVDC Flex ari kubvumira kuwedzera kwemhepo iri mugungwa mumvura yakadzika uko AC inotadza kufambiswa. Zvichibatanidza zvinodiwa zvakanyanya zvemagetsi nemamiriro ekunze akaoma, mayuniti aya anomiririra hunyanzvi hwepamusoro hwekugadzira transformer.

Kune nyanzvi dzekutenga, kunzwisisa zvinodiwa zvakasiyana zvemashandisirwo eHVDC ari kunze kwenyika kunobatsira mukusarudza michina yakakodzera uye kuongorora kugona kwevatengesi. Sezvo simba rinogona kuvandudzwa richiramba richikura pasi rose, ma transformer aya akasarudzika acharamba ari zvikamu zvakakosha zvezvivakwa zvesimba rakachena.