Yog tias koj nrhiav cov ntaub ntawv qhia ntxaws txog AC motors, koj tau tuaj rau qhov chaw zoo.Kev cai AC motors poob rau hauv ob pawg loj: synchronous thiab asynchronous.Feem ntau hom asynchronous lub cev muaj zog yog AC induction lub cev muaj zog, uas cov neeg tsim khoom siv lub cev muaj zog siv lub AC transformer nrog kev sib hloov thib ob.Nyob rau hauv hom no lub cev muaj zog, thawj winding, los yog stator, txuas mus rau lub hwj chim qhov chaw thaum lub sij hawm luv luv tus tswv cuab, los yog rotor, nqa lub induced theem nrab tam sim no.Qhov kev txiav txim ntawm rotor tam sim no ntawm huab cua-gap flux tsim torque.Ib qho asynchronous lub cev muaj zog, ntawm qhov tod tes, yog nyob rau hauv chav kawm AC lub cev muaj zog vim qhov sib txawv ntawm kev tsim thiab kev ua haujlwm.
Peb AC lub cev muaj zog uas tuaj yeem ua raws li koj qhov tshwj xeeb
Ntxiv AC Motor Design Hom
Polyphase AC Motors
Polyphase squirrel-cage AC motors, xws li peb-theem motors, yog cov tshuab ceev ceev.Lawv muaj qee qhov kev hloov pauv hauv cov yam ntxwv ua haujlwm thaum hloov kho lub rotor qhov tsim.Variations nyob rau hauv AC motors tsim cov kev hloov nyob rau hauv tam sim no, torque thiab puv-load ceev.
AC Servo Tsav
Servo motors yog siv nyob rau hauv AC servomechanisms thiab computers uas yuav tsum tau ceev, raug cov yam ntxwv teb.Yuav kom tau txais cov yam ntxwv no, servo motors muaj me me-inch, siab-resistance rotors.Cov kab me me muab cov inertia qis rau kev pib ceev, nres thiab thim rov qab.Lub siab tsis kam tso cai rau ze li ntawm txoj kab nrawm-torque kev sib raug zoo rau kev tswj kom raug.
Multi-Speed AC Motors
Kev cai lub cev muaj zog manufacturers tsim qhov tshwm sim-ncej AC motors ua haujlwm ntawm ib qho ceev.Los ntawm lub cev rov txuas cov coj, lawv tuaj yeem ua tiav qhov sib piv 2: 1 ceev.Qhov ceev ceev rau 60-Hz AC motors yog:
3,600 / 1,800 rpm (2/4 ncej)
1,800/900 rpm (4/8 ncej)
1,200/600 rpm (6/12 ncej)
Ob-winding AC motors muaj ob tus neeg windings uas cov tuam txhab tuaj yeem cua rau txhua tus ncej los pab kom tau txais lwm qhov sib piv ceev.Qhov sib piv ntau dua 1: 4, txawm li cas los xij, yog qhov ua tsis tau zoo vim yog lub cev muaj zog AC qhov loj thiab qhov hnyav.Ib-theem AC motors feem ntau muaj qhov sib txawv-torque tsim.Txawm li cas los xij, tsis tu ncua-torque thiab tas li-horsepower AC motors kuj muaj.
Ib-theem AC Motors
Ib-theem induction AC fais fab motors feem ntau yog hom fractional-horsepower.Txawm li cas los xij, ib-theem ib leeg-horsepower muaj nyob rau hauv qis dua horsepower ntau.Feem ntau cov feem ntau-horsepower ib-theem AC motors yog:
- Split-theem
- Capacitor-ntse
- Permanent split-capacitor
- Duab ntxoov ntxoo ncej
Qhov kev cai AC lub cev muaj zog tsim no muaj nyob rau hauv ntau hom kev ceev, tab sis muaj cov tswv yim txwv rau tus naj npawb ntawm qhov tau txais.Cov uas muaj ob-, peb- thiab plaub-ceev motors muaj.Qhov tshwm sim-ncej lossis ob txoj kev winding tuaj yeem nrog kev xaiv ceev.