Qhia ntxaws ntxaws rau
Permanent Magnet Synchronous Motors
Txhais: Cov hlau nplaum ruaj khov synchronous lub cev muaj zogyog ib hom ntawm lub cev muaj zog uas lub rotor siv cov hlau nplaum tas li los tsim ib qho chaw sib nqus tas li, thiab cov stator windings yog energized nrog alternating tam sim no los tsim ib qho chaw sib nqus sib nqus. Lub rotor ceev yog nruj me ntsis synchronized nrog ceev ntawm stator lub rotating magnetic teb.
Cov khoom siv tseem ceeb
Lub cev qauv ntawm cov hlau nplaum ruaj khov synchronous lub cev muaj zog feem ntau muaj cov stator (stationary part) thiab rotor (rotating part), nrog rau cov khoom pabcuam:
Stator: Stator core (stacked silicon steel sheets), peb-theem (los yog ntau-theem) windings, rwb thaiv tsev, thiab vaj tse.
Muaj nuj nqi: Tsim ib qho chaw sib nqus sib nqus thaum siv tam sim no; lub vaj tse kuj muab kev txhawb nqa thiab cua kub dissipation.
Rotor: Rotor tub ntxhais, cov hlau nplaum ruaj khov (feem ntau NdFeB lossis SmCo), ncej, sheath (rau siab -ceev motors)
Muaj nuj nqi: Cov hlau nplaum ruaj khov tsim kom muaj qhov ua kom muaj zog sib nqus tsis tu ncua; Lub rotor tub ntxhais ua cov sib nqus Circuit Court, thiab cov ncej outputs mechanical torque.
Xaus Npog thiab Bearings: Pem hauv ntej thiab nram qab kawg npog, bearings, txias qauv (cua sov{0}}cooled/liquid-cooled)
Muaj nuj nqi: Txhawb rotor kev sib hloov, ua kom cov huab cua sib txawv ntawm stator thiab rotor, thiab tshem tawm cov cua sov los ntawm lub cev muaj zog.
Sensors (yeem): Rotary transformer, Hall effect sensor, encoder
Muaj nuj nqi: Txheeb xyuas rotor txoj hauj lwm rau siab -kev tswj ceev ceev hauv vector tswj (FOC).
Lub Ntsiab Cai:
① Sib Nqus Field Generation: Peb-theem sinusoidal alternating tam sim no yog siv rau stator windings, ua ib synchronously rotating magnetic teb nyob rau hauv qhov chaw (ceev ns=60f / p, f yog qhov zaus, p yog tus naj npawb ntawm ncej khub). Cov hlau nplaum ruaj khov ntawm lub rotor tsim kom muaj qhov ua kom muaj zog sib nqus tsis tu ncua.
② Kev ua haujlwm synchronous: Lub stator rotating magnetic teb thiab rotor mus tas li hlau nplaum hlau nplaum ob peb, generating electromagnetic torque uas "dras" lub rotor mus rau tib ceev raws li lub rotating magnetic teb. Thaum lub load hloov, lub hwj chim lub kaum sab xis ntawm lub rotor ncej thiab lub stator magnetic teb adaptively hloov kom sib npaug ntawm lub torque, tab sis qhov ceev tseem nruj me ntsis synchronized, tsis muaj plam.
③ Txoj Kev Tswjhwm: Kom ua tiav kev ua haujlwm tau zoo, thaj chaw - tswj kev taw qhia (FOC) lossis ncaj qha torque tswj (DTC) feem ntau yog siv. Los ntawm kev kuaj xyuas lub rotor txoj hauj lwm, lub stator tam sim no yog decoupled mus rau hauv lub excitation tivthaiv uas generates lub magnetic teb thiab lub torque tivthaiv uas generates lub torque, uas yog tswj nyias, ua kom tau raws li cov kev cai ceev zoo ib yam li DC lub cev muaj zog.
