Dc motor drive mode.I-Dc drive njengendlela yokuqhuba efikelelekayo kudala isetyenziswa kakhulu kwizixhobo zombane.Inkqubo yeDc ngokwayo ineziphene ezithile kwintsebenzo, ukugcinwa njalo njalo.Izithuthi zombane ngaphambi kweminyaka yoo-1990 zaziphantse zaqhutywa ziimoto ze-dc.I-Dc motor ngokwayo inokusebenza okuphantsi, umthamo omkhulu kunye nobunzima, i-commutator kunye ne-carbon brush umda ukuphuculwa kwesantya sayo, isantya esiphezulu se-6000 ~ 8000r / min.
Imoto yombane yenziwe ngesenzeko sekhoyili ene-energy ejikelezayo ngokunyanzeliswa kumhlaba wamagnetic.Xa kuthelekiswa nemoto ye-DC, i-AC motor ye-forklift inomsebenzi ogqwesileyo ongenakuthelekiswa nanto.Abavelisi beforklift balandelayo bachaza iimpawu ze-AC motor kunye ne-DC motor.Imoto ye-AC ibandakanya ubukhulu becala i-electromagnetic winding okanye i-stator esasazwayo ejikelezayo ukuze ivelise indawo yemagnethi kunye ne-armature ejikelezayo okanye i-rotor.Akukho thuli oluveliswe emva kokugqoka ibrashi yekhabhoni, indawo ecocekileyo yangaphakathi, ukuphucula ubomi benkonzo yemoto.Ukusebenza kwe-Ac motor kuphezulu, kwaye akukho msi, ivumba, musa ukungcolisa okusingqongileyo, ingxolo incinci.Ngenxa yoluhlu lweenzuzo, lusetyenziswa ngokubanzi kwimveliso yezoshishino kunye nezolimo, ukuthutha, ukukhusela ilizwe, izixhobo zorhwebo kunye nekhaya, izixhobo zombane zonyango kunye neminye imiba.
Inkqubo yokuqhutywa kwemoto ye-AC bubuchwepheshe obutsha obuphuhliswe ngo-1990.Inzuzo ebalaseleyo yeenjini ze-ac kukuba azinayo iibrashi zekhabhoni, kwaye azinayo imida yangoku ephezulu edla ngokuba nayo iimotor ze-dc, oku kuthetha ukuba xa beziqhelisa banokufumana amandla angakumbi kunye ne-torque ye-braking, ukuze babaleke ngokukhawuleza.Ubushushu bemoto ye-AC ubukhulu becala kwenzeka kwikhoyili ye-stator yeqokobhe lemoto, elungele ukupholisa kunye nokupholisa.Ke ngoko, iimotor ze-ac zifuna izinto ezimbalwa kakhulu kuneenjini zeDC, akukho malungu anxitywayo afuna ukutshintshwa rhoqo, phantse akukho lungiso, lusebenza ngakumbi, luhlala ixesha elide.
Injini yeDc yimoto eguqula amandla angoku ngokuthe ngqo abe ngamandla oomatshini.Ngenxa yokusebenza kwayo kakuhle kokulawula isantya, isetyenziswa kakhulu ekuqhubeni kombane.Dc motor ngokwemowudi excitation yahlulwe umazibuthe esisigxina, ezinye imincili kwaye self-imincili iindidi ezintathu.Ukunxiba kwebrashi yeCarbon kuvelisa uthuli, oluchaphazela ngqo ubomi benkonzo yemoto.I-motor ayivalwanga ngokupheleleyo, ubushushu obuveliswe kwimotor ngexesha lomsebenzi, isiphumo sokutshatyalaliswa kobushushu sibuthathaka, asihambisani nemoto ixesha elide.Ukusebenza kakuhle kokubuyisela umva kwamandla kwibraking kungaphantsi kwe-15%.Imoto yeDc inesakhiwo esintsonkothileyo kunye neendleko eziphezulu zokwenziwa;Ingxaki yolondolozo, kunye nonikezelo lwamandla e-dc, iindleko eziphezulu zokugcinwa.Ngokuqhelekileyo isetyenziselwa ukuqalisa phantsi komthwalo onzima okanye ifuna uhlengahlengiso olufanayo koomatshini besantya, abanje ngelitye elikhulu lokusila elibuyela umva, iwinch, i-locomotive yombane, itroli, njl. njl., ziqhutywa yi-dc motor.
Kwiminyaka yakutshanje, kunye nenkqubela phambili yetekhnoloji ye-ac induction motor variable frequency, kunye nezixhobo eziphezulu ze-semiconductor kunye nesantya se-microprocessor, ukuphuculwa kwenkqubo ye-ac induction motor drive xa kuthelekiswa nenkqubo ye-motor drive ye-dc, esebenza kakuhle kakhulu, umthamo omncinci, umgangatho ophantsi, ubume obulula, ukugcinwa simahla, kulula ukupholisa kunye neenzuzo zobomi benkonzo ende.Uluhlu lwesantya senkqubo lubanzi, kwaye lunokuqonda isantya esisezantsi setorque rhoqo kunye nesantya esiphezulu sokusebenza rhoqo kwamandla, esinokuhlangabezana kakuhle neempawu zesantya ezifunwa kukuqhuba kwemoto yombane.Kunokuthiwa kukuqhubela phambili ngokukhawuleza kwetekhnoloji ye-semiconductor ezala inguqu yetekhnoloji yemoto ye-AC kwaye iphakamisa kakhulu amandla olawulo lwemoto ye-AC.Ngaphezu koko, ngokuhla okuqhubekayo kwexabiso lamacandelo e-elektroniki, ixabiso le-ac motor controller hardware lingancitshiswa, ngaloo ndlela libeka isiseko sokunyusa okukhulu kunye nokusetyenziswa kwe-AC drive system, ukudala iimeko.
Ixesha lokuposa: Oct-04-2021