Taolo ea lebelo la phetoho hangata e bua ka sistimi e joalo ea electromechanical: lebelo la phetoho ea lebelo la induction motor, frequency converter, controller le lisebelisoa tse ling tse bohlale, li-terminal actuators le software ea taolo, jj. tsamaiso.Sistimi ea taolo ea lebelo ea mofuta ona e nkela sebaka sa taolo ea lebelo la mochini le sekema sa taolo ea lebelo la DC maemong a neng a e-so ka a e-ba teng, a ntlafatsang haholo tekanyo ea boits'oaro ba mochini le ts'ebetso ea tlhahiso, mme e etsa hore lisebelisoa li mpefale le ho ba bohlale.
Ha re sheba ts'ebeliso ea matla ea li-motors tsohle lits'ebetsong tsa indasteri, hoo e ka bang 70% ea li-motor li sebelisoa ho meroalo ea fan le pompo.Melemo ea ho boloka matla le ho fokotsa tlhahiso bakeng sa mejaro e joalo e totobetse: melemo e meholo ea moruo le liphello tse tsitsitseng tsa sechaba .E ipapisitse le morero o kaholimo, taolo ea lebelo la phetoho ea motlakase oa AC e sebelisoa haholo.Ka mohlala, ho inverter air conditioner, ha mocheso o behiloeng ke moea o theoha, ho hlokahala feela ho laola lebelo la motlakase ho fokotsa le ho fokotsa matla a ho khanna.
Ntle le ho boloka matla le ho ba bonolo ho tsebahatsa le ho sebelisa, li-motors tsa asynchronous tse laolang lebelo le fapaneng li na le molemo oa ho qala ka bonolo, 'me ha ho na tlhoko ea ho hlahloba ts'ebetso ea ho qala.Bothata bo le bong feela ba bohlokoa bo hlokang ho rarolloa ke: ho ikamahanya le maemo a motlakase ho matla a non-sine wave a tlameha ho ntlafatsoa.
Molao-motheo oa ho sebetsa oa frequency converter
Mofetoleli oa maqhubu ao re a sebelisang haholo-holo o amohela mokhoa oa AC-DC-AC (VVVF frequency conversion kapa vector control frequency conversion).Taba ea pele, matla a maqhubu a matla a AC a fetoloa ho ba matla a DC ka rectifier, ebe matla a DC a fetoloa AC ka maqhubu a laolehang le voltage.matla a ho fana ka enjene.Potoloho ea converter frequency hangata e entsoe ka likarolo tse 'ne: tokiso, sehokelo sa DC se mahareng, inverter le taolo.Karolo ea tokiso ke borokho bo sa laoleheng ba mekhahlelo e meraro, karolo ea inverter ke inverter ea borokho ea mekhahlelo e meraro ea IGBT, 'me tlhahiso ke waveform ea PWM,' me sehokelo sa bohareng sa DC se sefa, polokelo ea matla ea DC le matla a sebetsang a buffering.
Taolo ea maqhubu e se e le leano le ka sehloohong la taolo ea lebelo, le ka sebelisoang haholo phetisong e se nang mohato liindastering tse fapaneng.Haholo-holo ka ts'ebeliso e ntseng e ata ea li-converter tsa maqhubu lefapheng la taolo ea indasteri, ts'ebeliso ea li-motor converter e se e atile haholo.Ho ka boleloa hore ka lebaka la bophahamo ba likoloi tsa ho fetola maqhubu ho laola maqhubu a phetoho holim'a likoloi tse tloaelehileng, kae kapa kae moo ho sebelisoang li-converter tsa maqhubu, re Ha ho thata ho bona palo ea motlakase oa ho fetola maqhubu.
Teko ea enjene e feto-fetohang hangata e hloka ho tsamaisoa ke frequency converter.Kaha maqhubu a tlhahiso ea mochine oa motlakase a na le mefuta e mengata e fapaneng, 'me leqhubu la PWM le hlahisoang le na le li-harmonics tse ruileng, mochine oa motlakase oa setso le matla a motlakase ha a sa khona ho finyella litlhoko tsa tekanyo ea teko.Frequency conversion power analyzer le frequency converter power transmitter, jj.
Benche e emeng ea liteko tsa enjene ke mofuta o mocha oa sistimi ea liteko e hlahisitsoeng bakeng sa leano la ntlafatso ea ts'ebetso ea motlakase ka lebaka la ho boloka matla le phokotso ea tlhahiso.Benche e emeng ea liteko tsa makoloi e tiisa le ho sebelisa sistimi e rarahaneng, e ntlafatsa ts'epahalo ea sistimi, e nolofatsa ts'ebetso ea ho kenya le ho lokisa liphoso, hape e fokotsa litšenyehelo tsa sistimi.
Phetoho ea maqhubu a khethehileng likarolo tsa motlakase
Moralo oa ho phahama ha mocheso oa sehlopha sa B, tlhahiso ea insulation ea sehlopha sa F.Ts'ebeliso ea lisebelisoa tsa ho kenya li-polymer le khatello ea vacuum e kentsoeng ts'ebetso ea tlhahiso ea li-varnish le ts'ebeliso ea sebopeho se khethehileng sa ho kenya letsoho ho etsa hore sepakapaka sa motlakase se mamelle matla a motlakase le matla a mochini a ntlafale haholo, a lekane bakeng sa ts'ebetso e phahameng ea lebelo le ho hanyetsa ho phahameng. - khafetsa phello ea hona joale le voltage ea inverter.Tšenyo ea ho kenya letsoho.
Motlakase oa ho fetola maqhubu o na le boleng bo holimo, 'me boemo ba vibrate ke R-level.Mokhoa o nepahetseng oa ho sebetsa oa likarolo tsa mochine o phahame, 'me ho sebelisoa li-bearings tse khethehileng tse phahameng, tse ka mathang ka lebelo le phahameng.
Enjene ea ho fetolela khafetsa e amohela moea o qobelloang le sistimi ea ho qhala mocheso, 'me libapali tsohle tse tsoang kantle ho naha li khutsitse haholo, li phela nako e telele le moea o matla.Etsa bonnete ba hore mocheso o sebetsa hantle oa enjene ka lebelo lefe kapa lefe, 'me u hlokomele ts'ebetso ea nako e telele ea lebelo le phahameng kapa e tlase.
Ha e bapisoa le motor frequency frequency e tloaelehileng, e na le lebelo le pharalletseng le boleng bo holimo ba moralo.Moralo o khethehileng oa matla a khoheli o hatella matla a matla a khoheli a phahameng a holimo ho kopana le matšoao a moralo oa Broadband, poloko ea matla le lerata le tlase.E na le mefuta e mengata e fapaneng ea torque e sa fetoheng le litšobotsi tsa taolo ea lebelo la matla, taolo e tsitsitseng ea lebelo, 'me ha ho na torque ripple.
E na le parameter e lumellanang hantle le li-converter tse fapaneng tsa frequency.E sebelisana le taolo ea vector, e khona ho lemoha torque e felletseng ea zero, lebelo le tlase le taolo ea lebelo le holimo, taolo ea maemo le taolo e potlakileng ea karabelo.
Nako ea poso: Dec-05-2023
