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Ndeupi musiyano uripo pakati peyunistronous mota uye asynchronous mota?

Jan 7, 2021 | Blog

Magetsi emagetsi michina inoita mashandiro emagetsi nekushandura simba remagetsi kuita simba remagetsi. Aya ma mota akagadzirwa kuti amhanye pane kusiyanisa ikozvino (AC) kana kunanga ikozvino (DC). AC motors ane mhando mbiri: Synchronous Motors uye Asynchronous Motors. Ose ari maviri michina anogovera mashoma akafanana, sekuvaka kwavo, asi iwo akatosiyana zvakanyanya kana zvasvika pakushanda nekuita.

Tiri kuzokurukura zvekutanga zve Synchronous mota uye Asynchronous mota tisati tarisa misiyano yavo.

Iyo induction kana AC mota ndeye asynchronous mota. Induction-mota oparesheni isynchronous nekuda kwekutsvedza nekuda kwekuti iko kutenderera kumhanya kweiyo stator munda kunononoka zvishoma kupfuura iyo rotor munda kumhanya.

Iyo rotor yemazhinji induction motors nhasi inonzi squirrel keji. Iyo cylindrical squirrel keji inoumbwa nehuremu hwemhangura, aluminium, kana ndarira mabara akaiswa mukati me grooves uye emagetsi akapfupiswa kumagumo ese maviri. Iyo yakasimba kiyi inovakwa nematanho mazhinji emagetsi esimbi laminations. Iyo stator ine yakawanda inotsvedza kupfuura iyo rotor. Huwandu hwe rotor slots inofanirwa kuve isinga-pindirane yakawanda ye stator slots kuitira kuti mazino eiyo rotor uye stator arege kupindirana nemagineti kana mota ichibatidzwa.

Induction motors inogona zvakare kuwanikwa iine ma rotors akagadzirwa nemamhepo pane e squirrel matanga. Chinangwa cheiyi ronda-rotor dhizaini kudzikisa iroror yazvino sezvo mota inotanga kutenderera. Izvi zvinoitwa nekubatanidza yega rotor ichitenderera zvakateedzana neanopikisa. Iyo yekutsvedza-mhete kurongeka inopa yazvino kune iyo windings. Kana iyo rotor yasvika pakumhanya kwazvo, matanda eRotor anopfupikiswa, saka inoshanda senge squirrel-keji rotor nemagetsi.

Iyo stator kana ruoko rweiyo mota mamhepo ndiyo chikamu chakamira che mota. Iko kugovera AC kwakabatana kune stator windings. Kana voltage ikaiswa kune iyo stator ichitenderera, yazvino inotanga kuyerera mu stator. Kuyerera kwemazuva ano kunogadzira magineti inokanganisa iyo rotor, iyo inozoisa kumusoro voltage uye yazvino kuyerera mune iyo rotor ichitenderera.

Danda rekuchamhembe mu stator rinokurudzira dondo rekumaodzanyemba mu rotor. Nekudaro, iyo stator pole inotenderera kana iyo AC voltage ichichinja muhukuru uye polarity. Iyo inokonzerwa rotor pole inoedza kutevera iyo stator pole painotenderera. Zvisinei, mutemo waFaraday unoti simba remagetsi rinogadzirwa kana chiuno chetambo chichifamba kubva pasimba remagineti-munda kuenda kune rimwe remasimba masimba, uye zvinopesana. Iyo magnetic field yaizoramba iripo kana rotor ikatevera inofamba stator pole. Naizvozvo, iyo rotor munda kutenderera inogara iri kumashure kuseri kweiyo stator munda kutenderera. Iyo rotor munda inogara ichisara ichimhanya kuseri kweiyo stator munda. Izvi zvinoguma nekutenderera kuchiitika nespeed iyo yakati nonokei pane iya ye stator. Slip ndiyo mutsauko wekumhanyisa pakati peminda miviri.

Huwandu hwekutsvedza hunogona kushanduka. Inonyanya kukanganiswa nemutoro unofambiswa nemotokari, uye zvakare nekushomeka kwedunhu rinotenderera uye simba remunda unokonzerwa neiyo stator flux.

Tsananguro yemagetsi anowirirana

Synchronous motors anoshandisa yakakosha rotor kuvaka iyo inovabvumidza kutenderera neyakaenzana kumhanya senge stator munda - saka mota dzinowirirana neiyo stator munda. Kazhinji zvinowirirana mota dzinoshandiswa kune zvinoshandiswa zvinoda chinzvimbo chinodzora. Muenzaniso wakanaka weinjini inopindirana ndiyo inotsika mota. Kunyange zvakadaro, kuvandudzwa kwesimba-kudzora matunhu kwakatungamira mukugadzirwa kwema synchronous-mota magadzirirwo ayo akagadzirirwa kuti ashandiswe mune emagetsi-ekushandisa, senge mafeni, vafuridzi, uye kutyaira maekisesi mumotokari dzemumugwagwa.

Mota dzinoenderana ndedzemhando mbiri dzekutanga:

  • Kuzvifadza-wega: Kubva pamisimboti yakafanana neyemota dzekumisikidza,
  • Yakanangana nemufaro: Munda kazhinji uine magineti anogara aripo, asi kwete nguva dzose

Kunze kwekudaidzwa kunzi switch-reluctance mota, yekuzvifadza-inowirirana synchronous mota zvakare ine iyo rotor cast yesimbi inosanganisira notches kana meno, anonzi akakosha matanda. Iwo notches pane iwo rotor ngaarege iro rotor kukiya pamwe neiyo stator munda uye inomhanya neiyo imwechete kumhanya.

Kuti ufambise rotor kubva pane imwe nzvimbo kuenda pane inotevera, inoteedzana stator mhepo / zvikamu zvinofanirwa kuchinjika zvakateedzana nenzira senge yekutsika mota. Mazita akati wandei akasiyana anogona kushandiswa kurondedzera yakanakidzwa mota inowirirana. Mazita anozivikanwa anosanganisira ECPM (Electronically switched zvachose magineti), BLDC (brushless DC), uye isina mabhureni magineti emagetsi. Iyo rotor mune ino dhizaina ine zvachose magineti. Iwo magineti anogona kunge akaiswa pamusoro peiri rotor pamusoro kana kuiswa mune rotor gungano.

Iwo magineti anogara nekusingaperi eichi dhizaini anodzivirira kutsvedza uye ndiwo matanda akakosha. Iyo microprocessor sequentially inoshandura simba remagetsi kune iyo stator windings panguva dzakakodzera uchishandisa solid-state switch, ichideredza torque ripples. Zvese izvi synchronous Motors vane imwecheteyo yekushandisa musimboti. Chaizvoizvo, huwandu hwakakura hwemagineti inoyerera inoyambuka gwanza remhepo pakati pe rotor ne stator kana simba rikaiswa kumakoils ronda pamazino e stator. Iko kuyerera kunoyambuka gwanza remhepo zvakaringana. Kana iyo stator uye rotor zvakanyatsoenderana, hakuzovi ne torque inogadzirwa. Kana iro zino rinotenderera rakamiswa pakona kune iyo stator zino, ipapo zvimwe kumwe kuyerera kunoyambuka gwanza pane isina-kutenderera kona kune iyo nzvimbo yemeno. Torque inogadzirwa pane iyo rotor semhedzisiro. Nekudaro, kuchinjisa simba kune stator windings panguva chaiyo kunokonzeresa kutenderera wachi kana kufamba uchienda kurudyi, zvinoenderana nemafambiro ekubuda.

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