Chofunika kwambiri cha magetsi a galimoto yamagetsi ndi kuyendetsa galimoto. Papepalali, mfundo ya nyenyezi-delta yoyambira yomwe imagwiritsidwa ntchito kwambiri m'makampani imagwiritsidwa ntchito kukhathamiritsa kuwongolera magalimoto amagetsi, kuti 48V yamagetsi yoyendetsa magetsi ikhale mtundu waukulu wa 10-72KW mphamvu yoyendetsa galimoto.Ntchito yagalimoto yonse imatsimikizika, ndipo nthawi yomweyo, mtengo wamagetsi wamagalimoto ang'onoang'ono ndi magalimoto ang'onoang'ono umachepetsedwa kwambiri,
Pakafukufuku waposachedwapa, ndinazindikira kuti kulamulira kwa magalimoto amagetsi ndiko kuyendetsa galimoto.Chifukwa kudziwa zomwe zachitika m'nkhaniyi ndizambiri komanso mwatsatanetsatane, ngati njira yothetsera njira yoyendetsera bwino, malinga ndi zomwe wolemba adawerengera, zomwe zikudziwa ndizokwanira kupanga chinsinsi. ndi masamba opitilira 100 komanso mawu opitilira 100,000 .Pofuna kulola owerenga pa media media kuti amvetsetse ndikuwongolera njira yokhathamiritsa yotere mkati mwa mawu masauzande ambiri.Nkhaniyi igwiritsa ntchito zitsanzo zenizeni pofotokoza njira yokwaniritsira dongosolo lamagalimoto amagetsi.
Zitsanzo zomwe zafotokozedwa apa zachokera pa Baojun E100, BAIC EC3, ndi BYD E2.Magawo otsatirawa amitundu iwiriwa ndi omwe akuyenera kulumikizidwa, ndipo chiwongolero chokhacho ndi chomwe chimakonzedwa kuti chikwaniritsidwe kukhala 48V/144V DC dual-voltage battery system, AC 33V/99V dual-voltage motor and seti ya ma driver .Pakati pawo, dongosolo lamagetsi lamagetsi la dalaivala ndilo chinsinsi cha dongosolo lonse lokonzekera bwino, ndipo wolemba akuwerenga mosamala komanso mozama.
Mwanjira ina, ma motors a Baojun E100, BAIC EC3, ndi BYD E2 amangofunika kukonzedwa kuti akhale ndi 29-70KW motor control system.Awa ndi oimira mini-galimoto ya A00, galimoto yaying'ono ya A0, ndi A compact pure electric car.Nkhaniyi igwiritsa ntchito njira yamagetsi yamagawo atatu asynchronous motor control kuti igwiritse ntchito pakuwongolera ma mota amagetsi kudzera pa delta ya nyenyezi, V/F + DTC magawo atatu asynchronous induction motor control.
Chifukwa cha kuchepa kwa malo, nkhaniyi sifotokoza mfundo za makona atatu a nyenyezi ndi zina zotero.Tiyeni tiyambe ndi mphamvu zamagalimoto wamba pakuwongolera magalimoto amakampani. The 380V ambiri gawo atatu asynchronous galimoto ndi 0.18 ~ 315KW, yaing'ono mphamvu ndi Y kugwirizana, sing'anga mphamvu ndi △ kugwirizana, ndi mphamvu mkulu ndi 380/660V galimoto.Nthawi zambiri, ma mota a 660V ndiye ma mota akulu pamwamba pa 300KW. Sikuti ma motors pamwamba pa 300KW sangathe kugwiritsa ntchito 380V, koma kuti chuma chawo sichili bwino.Ndizomwe zimalepheretsa chuma cha injini ndi dera lowongolera.Kawirikawiri 1 lalikulu millimeter akhoza kudutsa 6A panopa. Makina atatu amtundu wa asynchronous induction motor akapangidwa, chingwe chake chomangira moto chimatsimikiziridwa.Ndiko kuti, kudutsa kwapano kumatsimikiziridwa.Malinga ndi ma motors a mafakitale, 500A ndiye mtengo waukulu kwambiri pachuma chake.
Kubwerera ku galimoto yamagetsi yamagetsi, mphamvu ya PWM ya magawo atatu a 48V batire system ndi 33V.Ngati chuma chagalimoto yamafakitale ndi 500A, kuchuluka kwachuma kwagalimoto yamagetsi ya 48V ndi pafupifupi 27KW pamagalimoto olowetsa magawo atatu.Panthawi imodzimodziyo, poganizira za kayendetsedwe ka galimoto, nthawi yofikira pakalipano ndi yochepa kwambiri, nthawi zambiri osapitirira mphindi zochepa, ndiye kuti, 27KW ikhoza kupangidwa kukhala yodzaza kwambiri.Nthawi zambiri kuchulukiraku kumakhala 2 mpaka 3 nthawi zanthawi zonse.Ndiye kuti, ntchito yabwinobwino ndi 9 ~ 13.5KW.
Ngati tingoyang'ana pamlingo wa voteji komanso kufananiza kwapano.Dongosolo la 48V limatha kukhala mkati mwa 30KW kokha chifukwa kuyendetsa bwino ndi njira yabwino yogwirira ntchito.
Komabe, pali njira zambiri zowongolera ma motors atatu asynchronous motors. Magalimoto amagetsi ali ndi malamulo osiyanasiyana othamanga (pafupifupi 0-100%) ndi torque control range (pafupifupi 0-100%).M'malo ovuta kwambiri, magalimoto amagetsi pakali pano amagwiritsa ntchito VF kapena DTC control.Ngati kuwongolera kwa nyenyezi-delta kuyambitsidwa, kungayambitse zotsatira zosayembekezereka.
Poyang'anira mafakitale, magetsi oyendetsa nyenyezi-delta ndi nthawi 1.732, zomwe zimangochitika mwangozi osati mfundo.Dongosolo la 48V silikweza ma frequency a PWM kuti apange AC 33V, ndipo injini yopangidwa molingana ndi kuchuluka kwamagetsi amagetsi ndi 57V.Koma timasintha mulingo wamagetsi owongolera nyenyezi-delta kukhala nthawi 3, womwe ndi muzu wa 9.Ndiye ikanakhala 99V.
Izi zikutanthauza kuti, ngati galimotoyo idapangidwa ngati 99V AC yagawo atatu asynchronous mota yokhala ndi cholumikizira cha delta ndi kulumikizana kwa 33V Y, kuthamanga kwagalimoto kumatha kusinthidwa kuchokera ku 0 mpaka 100% mkati mwa mphamvu ya 20 mpaka 72KW pansi pazachuma. mikhalidwe. Nthawi zambiri liwiro pazipita galimoto ndi 12000RPM), malamulo makokedwe ndi 0-100%, ndi kusinthasintha pafupipafupi ndi 0-400Hz.
Ngati chiwembu choterechi chikhoza kuchitika, ndiye kuti magalimoto amtundu wa A ndi magalimoto ang'onoang'ono amatha kupeza ntchito yabwino kudzera pagalimoto imodzi.Tikudziwa kuti mtengo wa 48V motor system (mkati mwamtengo wapamwamba wa 30KW) ndi pafupifupi 5,000 yuan. Mtengo wa dongosolo lokonzekera bwino mu pepala ili silikudziwika, koma silimawonjezera zipangizo, koma limangosintha njira yoyendetsera ndikuyambitsa magetsi awiri.Kuwonjezeka kwa mtengo wake kumayendetsedwanso.
Inde, padzakhala mavuto ambiri atsopano mu dongosolo lolamulira lotere. Vuto lalikulu kwambiri ndi kapangidwe ka injini, kapangidwe ka dalaivala, komanso zofunika kwambiri pakulipiritsa ndi kutulutsa kwa batire yothamanga kwambiri.Mavutowa amatha kulamuliridwa ndipo pali mayankho omwe alipo. Mwachitsanzo, mapangidwe agalimoto amatha kuthetsedwa posintha kuchuluka kwa ma voliyumu apamwamba komanso otsika.Tidzakambilana pamodzi m’nkhani yotsatila.
Nthawi yotumiza: Mar-02-2023