Dc motor drive mode.Dc drive ngati njira yotsika mtengo kwambiri yakhala ikugwiritsidwa ntchito kwambiri pazida zamagetsi.Dc system palokha ili ndi zolakwika zina pakuchita, kukonza ndi zina zotero.Magalimoto amagetsi asanafike zaka za m'ma 1990 anali pafupifupi oyendetsedwa ndi ma dc motors.DC motor yokha imakhala ndi mphamvu zochepa, voliyumu yayikulu ndi misa, commutator ndi carbon burashi zimachepetsa kuwongolera kwa liwiro lake, kuthamanga kwa 6000 ~ 8000r/min.
Galimoto yamagetsi imapangidwa ndi chodabwitsa cha koyilo yopatsa mphamvu yomwe imazungulira mokakamiza pamaginito.Poyerekeza ndi mota ya DC, mota ya AC ya forklift ili ndi magwiridwe antchito osayerekezeka.Opanga ma forklift otsatirawa amafotokoza mawonekedwe a AC mota ndi DC mota.Galimoto ya AC imakhala makamaka ndi magineti a electromagnet yokhotakhota kapena kufalikira kwa stator kuti ipange mphamvu ya maginito ndi zida zozungulira kapena rotor.Palibe fumbi lomwe limapangidwa pambuyo pa kuvala burashi ya kaboni, malo oyera amkati, kusintha moyo wautumiki wagalimoto.Ac motor ntchito Mwachangu ndi apamwamba, ndipo palibe utsi, kununkhiza, musaipitse chilengedwe, phokoso ndi laling'ono.Chifukwa cha maubwino angapo, amagwiritsidwa ntchito kwambiri pakupanga mafakitale ndi ulimi, zoyendera, chitetezo cha dziko, zida zamalonda ndi zapakhomo, zida zamagetsi zamankhwala ndi zina.
Induction motor AC drive system ndiukadaulo watsopano wopangidwa mu 1990's.Ubwino waukulu wa ma ac motors ndikuti alibe maburashi a kaboni, komanso alibe malire aposachedwa omwe ma dc motors amakhala nawo nthawi zambiri, zomwe zikutanthauza kuti pochita zinthu amatha kupeza mphamvu zambiri komanso ma braking torque, kuti athe kuthamanga mwachangu.Kutentha kwa mota ya AC kumachitika makamaka mu koyilo ya stator ya chipolopolo cha mota, yomwe ndi yabwino kuziziritsa ndi kuziziritsa.Chifukwa chake, ma ac motors amafunikira magawo ocheperako kuposa ma motors a DC, palibe zida zovala zomwe zimafunikira kusinthidwa pafupipafupi, pafupifupi kusakonza, kothandiza kwambiri, kolimba kwambiri.
Dc motor ndi injini yomwe imasintha mphamvu zomwe zikuchitika panopa kukhala mphamvu zamakina.Chifukwa cha kayendetsedwe kabwino ka kayendetsedwe kabwino ka liwiro, imagwiritsidwa ntchito kwambiri pakuyendetsa magetsi.Dc galimoto molingana ndi mode chisangalalo lagawidwa maginito okhazikika, ena okondwa ndi kudzikonda osangalala magulu atatu.Carbon brush kuvala kumapanga fumbi, lomwe limakhudza mwachindunji moyo wautumiki wa injini.Galimotoyo sinatsekedwe mokwanira, kutentha komwe kumapangidwa mu mota panthawi yantchito, kutentha kwapang'onopang'ono kumakhala kofooka, sikuthandiza kwa mota kwa nthawi yayitali.Mphamvu yobwerera m'mbuyo pa braking ndi yochepera 15%.DC motor ili ndi mawonekedwe ovuta komanso mtengo wapamwamba wopanga;Mavuto okonza, ndi magetsi a dc, mtengo wokonza kwambiri.Nthawi zambiri amagwiritsidwa ntchito poyambira katundu wolemetsa kapena wofunikira kusintha makina othamanga, monga mphero yayikulu yosinthira, winchi, locomotive yamagetsi, trolley, etc., amayendetsedwa ndi dc motor.
M'zaka zaposachedwa, ndi kupita patsogolo kwaukadaulo wamagalimoto osinthika ac induction motor frequency frequency technology, ndi zida zapamwamba za semiconductor ndi liwiro la microprocessor, makina oyendetsa bwino ac induction motor drive poyerekeza ndi dc motor drive system, ndikuchita bwino kwambiri, voliyumu yaying'ono, mtundu wotsika, kapangidwe kosavuta, kukonza kwaulere, kosavuta kuzirala komanso ubwino wa moyo wautali wautumiki.Kuthamanga kwa dongosololi ndikwambiri, ndipo imatha kuzindikira ma torque otsika komanso kuthamanga kwamphamvu kosalekeza, komwe kumatha kukumana ndi liwiro lomwe limafunikira pakuyendetsa kwenikweni kwa magalimoto amagetsi.Titha kunena kuti ndikupita patsogolo kofulumira kwaukadaulo wa semiconductor komwe kumabweretsa kusintha kwaukadaulo kwa mota ya AC ndikukulitsa kwambiri kuwongolera kwa mota ya AC.Komanso, ndi kutsika kosalekeza kwa mtengo wazinthu zamagetsi, mtengo wa ac motor controller hardware ukhoza kuchepetsedwa, motero kuyika maziko a kukwezedwa kwakukulu ndi kugwiritsa ntchito dongosolo la AC drive, kupanga zinthu.
Nthawi yotumiza: Oct-04-2021