Cov qauv tsav hluav taws xob ntawm cov hlau nplaum ruaj khov synchronous lub cev muaj zog (PMSM) yog lub hauv paus ntawm kev ua tiav siab - kev tswj lub cev muaj zog. Los ntawm kev nkag siab tob txog cov ntsiab lus tseem ceeb ntawm PMSMs los tsim cov qauv lej raug thiab tsim cov tswv yim tswj kom muaj txiaj ntsig, txhua kauj ruam yog qhov tseem ceeb. Nrog rau kev txhim kho txuas ntxiv ntawm lub zog hluav taws xob thev naus laus zis, kev tswj kev xav, thiab kev suav lub zog, PMSM hluav taws xob tsav lub cev qauv yuav ua tiav, nws cov kev tswj xyuas yuav raug txhim kho ntxiv, thiab nws cov ntawv thov hauv ntau qhov chaw yuav nthuav dav dua thiab hauv - qhov tob, pab txhawb rau yav tom ntej kev txhim kho ntsuab zog thiab kev tsim khoom ntse.
Lub hauv paus ntawm PMSM yog stator winding thiab cov hlau nplaum ruaj khov rotor. Thaum lub stator winding yog energized, nws generates ib rotating magnetic teb, uas interacts nrog lub magnetic teb ntawm lub rotor cov hlau nplaum mus tas li los tsim electromagnetic torque uas tsav lub rotor tig. Raws li txoj kev teeb tsa ntawm lub rotor cov hlau nplaum ruaj khov, PMSMs tuaj yeem muab faib ua qhov chaw -mounted ruaj khov hlau nplaum synchronous motors (SPMSMs) thiab sab hauv mounted ruaj khov hlau nplaum synchronous motors (IPMSMs). Hauv SPMSM, cov hlau nplaum ruaj khov txuas ncaj qha mus rau qhov chaw rotor, thiab lawv cov d-axis thiab q-axis inductances yog kwv yees li sib npaug. Nyob rau hauv sib piv, nyob rau hauv IPMSM, cov hlau nplaum mus tas li yog embedded nyob rau hauv lub rotor, thiab lub reluctance nyhuv ua rau cov d-axis thiab q-axis inductances tsis sib npaug, yog li ua rau reluctance torque thiab ntxiv txhim kho lub cev muaj zog kev ua tau zoo.