Nekuzivikanwa kweiyo inosiyana frequency magetsi magetsi, dambudziko rekutanga mota rakagadziriswa zviri nyore, asi kune akajairwa magetsi, kutanga kwe squirrel-cage rotor asynchronous mota inogara iri dambudziko. Kubva pakuongorora kwekutanga uye kushanda kwekushanda kweasynchronous motor, zvinogona kuonekwa kuti kuitira kuti uwedzere tambo yekutanga uye kuderedza ikozvino paunotanga, kupikisa kwe rotor kunoda kuti kuve kwakakura; nepo mota ichimhanya, kuitira kudzikisa rotor mhangura yekushandisa uye kuvandudza kushanda kwemota, iyo rotor kuramba inodiwa kuve diki Vamwe; izvi zviri pachena kuti kupesana.

Kune ronda rotor mota, sezvo kushorwa kunogona kubatanidzwa munhevedzano pakutanga, ndokuzogurwa panguva yekushanda, ichi chinodiwa chinonyatsosangana. Zvisinei, chimiro cheronda asynchronous motor chakaoma, mari yacho yakakwirira, uye kugadzirisa hakuna kunaka, saka kushandiswa kwayo kunogumira kune imwe nhanho; Resistors, uchimhanya nemaune nediki resistors. Yakadzika slot uye kaviri squirrel cage rotor motors ine iyi yekutanga kuita. Nhasi, Mai vakapinda mukutaura nezve yakadzika slot rotor mota.

Yakadzika slot asynchronous mota

Kuti usimbise maitiro eganda, iyo groove chimiro cheyakadzika groove asynchronous mota rotor yakadzika uye yakamanikana, uye chiyero chekudzika kwegroove kusvika groove upamhi iri pakati pe10-12. Kana iyo yazvino ichipfuura nepakati peiyo rotor bar, iyo inodonha magineti inopindirana nepasi pebhari yakawanda kupfuura iyo inopindirana neiyo notch chikamu. Naizvozvo, kana bhari ichionekwa seyakakamurwa neanoverengeka madiki Kana maconductor akabatana mune yakafanana, madiki conductor ari padyo nepasi peiyo slot ane yakakura yekudonha reactance, uye padyo neiyo slot, iyo idiki iyo leakage reactance.

 

Paunotanga, nekuti kuwanda kweiyo rotor ikozvino kwakakwira uye kudonha kwemvura kwakakura, kugoverwa kwezvino mune imwe neimwe conductor diki kunoenderana nekudonha kwekuita, uye iyo yakakura yekudonha reactance, iyo idiki yekudonha ikozvino. Nenzira iyi, pasi pekuita kwesimba rimwechete rinokonzereswa neiyo huru magineti yemhepo gap, density iripo mubhawa padhuze nepasi peiyo slot ichave idiki kwazvo, uye iyo iri padyo neiyo slot, iyo yakakura ikozvino. density.

Pamusana pekuita kweganda, mushure mokunge yakawanda yemazuva ano yakanyungudutswa kune chikamu chepamusoro chebhurairi yemutungamiri, basa rebhurairi riri pasi pe groove iduku zvikuru. Sangana nezvinodiwa zvekupikisa kukuru paunotanga. Kana iyo mota yatangwa uye mota ichimhanya zvakajairika, sezvo iyo rotor yazvino frequency yakadzikira, iyo leakage reactance ye rotor winding idiki kwazvo pane inopokana nerotor, saka kugoverwa kweiyo ikozvino mune ambotaurwa maconductor madiki anozonyanya kuve. zvakatemerwa nekupikisa.

 

Sezvo kushorwa kwemudiki wega wega conductor kwakaenzana, ikozvino mubhari ichagoverwa zvakaenzana, saka ganda mhedzisiro inonyangarika, uye kushorwa kwerotor bar kunova kudiki, pedyo neDC kuramba. Zvinogona kuoneka kuti kupikisa kwerotor mukushanda kwakajairika kunongodzikira, nekudaro kugutsa mhedzisiro yekuderedza kushandiswa kwemhangura nekuvandudza kushanda zvakanaka.

Chii chinonzi ganda mhedzisiro?Chimiro cheganda chinonziwo maitiro eganda. Kana iyo inotsinhanisa ikozvino ichipfuura nepamuitisi, ikozvino inoisa pfungwa pamusoro peiyo conductor uye inoyerera. Chiitiko ichi chinodaidzwa kuti skin effect. Kana yazvino kana voltage ichiitisa mune conductor ane epamusoro frequency maerekitironi, anoungana pamusoro peiyo conductor yakazara panzvimbo yekugovaniswa zvakaenzana munzvimbo inoyambuka-chikamu chese conductor.

Chimiro cheganda hachingoiti chete kupikisa kwe rotor, asiwo kunokanganisa rotor leakage reactance. Kubva munzira yeiyo slot leakage flux, zvinogona kuoneka kuti yazvino ichipfuura nemudiki conductor inongoburitsa iyo inobuda kubuda kubva kune diki conductor kuenda kune notch, uye haiburitse iyo leakage flux kubva kumudiki conductor kusvika pasi peiyo. slot. Nekuti iyo yekupedzisira haina kuyambuka-yakabatana neiyi ikozvino. Nenzira iyi, nekuda kwehukuru hwakafanana hwezvino, iyo padyo nepasi peiyo slot, iyo yakanyanya kuvuza flux inogadzirwa, uye padhuze nekuvhura slot, iyo shoma yekudonha flux inogadzirwa. Zvinogona kuoneka kuti kana ganda rikadzvanya ikozvino mubhawa kune notch, iyo slot leakage magineti flux inogadzirwa neyazvino inodzikira, saka iyo slot leakage reactance inodzikira. Saka mhedzisiro yeganda inowedzera kupikisa kwe rotor uye inoderedza kudonhedza kwerotor.

Simba rekuita kweganda rinoenderana nehuwandu hweiyo rotor ikozvino uye ukuru hweiyo slot shape. Iyo yakakwira frequency, iyo yakadzika iyo slot chimiro, uye inonyanya kukosha ganda mhedzisiro. Iyo rotor imwechete ine ma frequency akasiyana ichava nemhedzisiro yeganda maitiro, uye nekudaro iyo rotor paramita ichave yakasiyana. Nekuda kweizvi, iyo rotor kuramba uye kudonha kwekuita panguva yakajairika kushanda uye kutanga kunofanirwa kunyatsosiyaniswa uye hakugone kuvhiringidzika. Kune imwechete frequency, iyo ganda mhedzisiro yeyakadzika groove rotor yakasimba kwazvo, asi iyo ganda mhedzisiro ine imwe nhanho yekupesvedzera pane yakajairika chimiro che squirrel cage rotor. Nokudaro, kunyange kune squirrel-cage rotor ine chimiro chakajairika, rotor parameters pakutanga uye kushanda inofanira kuverengwa zvakasiyana.

Iyo rotor leakage reactance yeyakadzika slot asynchronous mota, nekuti iyo rotor slot chimiro chakadzika kwazvo, kunyangwe ichideredzwa nekurudziro yeganda maitiro, ichiri yakakura kupfuura yakajairika squirrel cage rotor leakage reactance mushure mekuderedzwa. Naizvozvo, iyo simba chinhu uye yakakura torque yeyakadzika slot mota yakadzikira zvishoma pane iyo yakajairwa squirrel cage mota.

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Nguva yekutumira: Mar-31-2023