China Tsanangudzo yeiyo DC mota fekitori nevatengesi | Twirl

Iyi mota inotevera mitsara mitsara yekushanda uye nekuda kweizvi zviri nyore kushandisa zvizere hunhu hwayo zvichienzaniswa nemagetsi anowirirana kana asynchronous.
 
Kuumbwa kweiyo DC mota:
Iyo stator inoumbwa nechitunha chesimbi uye imwe kana mamwe magineti ayo anogadzira chigadziko chemagineti mukati meiyo stator. Kumashure kweiyo stator kune mabhurosi anokwenenzverwa uye bhurashi giya iyo inopa kusangana kwemagetsi neiyo rotor. Iyo rotor iyo pachayo inoumbwa nesimbi chitunha chinotakura makoiri ayo akabatana pane iyo commutator iri kumashure kweiyo rotor. Iyo commutator uye bhurasho gungano wobva wasarudza iyo coil iyo iyo yemagetsi magetsi inopfuura nenzira yakatarisana.
 
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Nheyo yekushanda: Chero zvingave kuomarara kweiyo rotor coil windings, kana dzangoverengerwa, dzinogona kumiririrwa muchimiro che ferromagneticcylinder ine solenoid yakaputirwa pairi.
Tambo yesolenoid iri mukuita iyo tambo bundle inowanikwa ineach groove yeiyo rotor. Iyo rotor, kana iine simba, inozoita seanelectromagnet, iyo magnetic field inotevera axis ichipatsanura mawaya esolenoid munzira yekuyerera inoyerera nepakati pavo.
 
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Iyo mota, saka, inoumbwa nemagetsi akasarudzika magineti (iyo stator) inovheneka magineti (iyo rotor) uye chitunha chesimbi kutarisisa kuyerera (mota yemuviri). (DRW 1)
(DRW 2) Nekukwezva kwematanda akatarisana nekunyangadza kwematanda, torque inozoita pane rotor yoita kuti itendeuke. Iyi torque iri pakukwirira apo iyo axis iri pakati pematanda eRotor inoenderana neiyo axis yematanda eiyo stator.Kana iyo rotor yatanga kutendeuka, mabhurosi akagadzika anoita nekupwanya kusangana neanotenderera zvikamu zvevatengesi zvakare. Iwo maRoil coils anobva asimbiswa uye kudzoreredzwa nenzira yekuti panotenderera rotor, iyo axis yedanda idzva reroror inogara yakatarisa kune iyo yeiyo stator. Nekuda kwenzira yekurongedzwa mutyairi, iyo rotor iri mukugara uchingofamba, kunyangwe paine chinzvimbo chayo. Kuchinja-chinja kwemhedzisiro torque kunoderedzwa nekuwedzera huwandu hwevatengesi zvikamu, nokudaro zvichipa kutenderera kwakatsetseka Nekudzosera magetsi kune mota, yazvino mumakoroni coils, uye nekudaro matanda ekuchamhembe nekumaodzanyemba, anodzoserwa. Iyo torque iyo inoshanda pane iyo rotor saka inodzoserwa uye mota inoshandura kwainoenda kutenderera. Nemamiriro ayo chaiwo, iyo DC mota mota ine revhi inodzosera kutenderera.
 
Torque uye kumhanya kwekutenderera:
Iyo torque inogadzirwa nemota, uye kumhanya kwayo kutenderera, zvinoenderana kune mumwe nemumwe.
Ichi ndicho chinhu chakakosha pamota; ihwo hukama hwemberi uye hunoshandiswa kuverenga iyo isina-mutoro kumhanya uye yekutanga-up torque yemota. (DRW 1)
 
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Iko iko kwesimba rekubuda kwemota kunoitiswa kubva kugirafu yetorque kana kumhanya. (DRW 2) Iyo torque vs. yekumhanyisa uye yekubuda emagetsi mac curves anoenderana nemagetsi ekupa kune mota.
Iyo magetsi ekugovera kumotokari inotora kuenderera kumhanya kwemotokari pane tembiricha iri pakati pe20 ℃ mune mazita ekushanda mamiriro.
 
Izvo zvinokwanisika kugovera mota ine imwe voltage (inowanzo pakati -50% uye + 100% yeiyo inokurudzirwa magetsi magetsi) .Kana iyo yakaderera magetsi ichishandiswa kana ichienzaniswa neyakakurudzirwa kupa iyo mota ichave isina simba shoma. inoshandiswa, mota ichave iine simba rakakwira rekubuda asi ichapisa (oparesheni inokurudzirwa). 
 
Nekusiyana kwemagetsi emagetsi pakati pe - 25% kusvika + 50%, iyo torque nyowani nekumhanyisa graph icharamba yakafanana neiyo yapfuura. Yayo yekutanga-up torque uye isina-mutoro kumhanya ichasiyana nepesenti imwechete sekusiyana kwemagetsi emagetsi. Simba rekuburitsa rinowedzerwa ne (1 + η%) 2. 
 
Semuenzaniso: Kwe 20% kuwedzera kwemagetsi ekupa
Start-up torque inowedzera ne20% (x 1.2)
Kwete-mutoro kumhanya inowedzera ne20% (x 1.2)
Simba rekuburitsa rinowedzera ne44% (x 1.44)
Torque uye yekupa yazvino:
 
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Ichi ndicho chechipiri chakakosha hunhu hwemota yeDC.Iyo yakatetepa uye inoshandiswa kuverenga iyo isina-mutoro zvazvino uye yazvino ine rotor yakamira (kutanga-up ikozvino).
 
Girafu yeiyi hukama haina kusiyana nemagetsi ekupa
yemota. Kupera kweiyo curve inowedzerwa zvinoenderana neiyo torque uye yekutanga-up ikozvino.
 
Iyi torque inogara yakaita sekuti: Hama C = Kc (I - Io) Iyo otational kukweshera torque ndiyo Kc. Io. Naizvozvo torque inoratidzwa seinotevera: C = Kc. Ini - Cf Cf = Kc. Io
Kc = Torque inopesana (Nm / A) C = Torque (Nm)
Cd = Start-up Torque (Nm) Cf = Rotational kupesana torque (Nm)
I = Yazvino (A) Io = Kwete-mutoro zvazvino (A) Id = Kutanga-kumusoro ikozvino (A) 
Iyo gradient yeiyi curve inonzi "torque kugara" kwemotokari.
 
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Kubudirira
Kushanda kwemotokari kwakaenzana nemagetsi anoburitsa simba raanogona kununura, rakakamurwa nesimba raanotora. Simba rekubuditsa uye simba rakapinza zvinosiyana zvine chekuita nekumhanya kwekutenderera, nekudaro kushanda kwacho zvakare kuri kuita kweyekukurumidza Kunonyanyisa kushanda zvakanaka kunowanikwa pamwe nekupihwa kutenderera kumhanya kwakapfuura 50% yeasina-mutoro kumhanya.
 
Temperature simuka
Iko kupisa kwekukwira kwemota kunokonzerwa nemusiyano uripakati pesimba rakabatwa uye nesimba rekubuda kwemota. Iyi mutsauko ndiko kurasikirwa kwesimba. Tembiricha inomuka inoenderanawo nenyaya yekuti kurasika kwesimba, muchimiro chekupisa kubva mumota, hakurumidzi kunyururwa nemhepo iri mukati (kupisa kwemafuta). Iko kupisa kwekushisa kwemotokari kunogona kuderedzwa zvakanyanya nemhepo yekufema.
 
Zvakakosha
Iwo mazita ekushandisa maitiro anoenderana neiyo voltagetorque-yekumhanyisa hunhu hunodiwa kuti huenderere mashandiro pane ambient tembiricha ye20 ℃. Basa repakati nepakati chete rinogoneka kunze kwemamiriro ekushanda aya: pasina kusarudzika, cheki dzese dzine chekuita nemamiriro ekushanda akawandisa anofanira kuitwa mune chaiwo mamiriro ekushandisa kwevatengi kuitira kuti basa rive rakachengeteka.

Post nguva: Mar-02-2020