Poyerekeza ndi mota ya DC ndi motor asynchronous, mawonekedwe ofunikira amtundu wa Brushless DC ndi awa:

1.Makhalidwe ogwiritsira ntchito a DC motor amapezedwa ndi ulamuliro wamagetsi. Iwo ali bwino controllability ndi lonse liwiro osiyanasiyana.

2.Rotor udindo ndemanga zambiri ndi electronic multiphase inverter dalaivala akufunika.

3.Essentially, AC motor imatha kugwira ntchito pa liwiro lalikulu popanda spark ndi abrasion ya brush ndi commutator. Ili ndi kudalirika kwakukulu, moyo wautali wogwira ntchito komanso osafunikira kukonza.

4.Brushless DC motor ili ndi mphamvu yayikulu, palibe kutayika kwa rotor ndi kutentha, komanso kuchita bwino kwambiri: poyerekeza ndi deta, mphamvu ya 7.5 kW asynchronous motor ndi 86.4%, komanso mphamvu yofananira ndi brushless DC motor imatha kufika 92.4% .

5.Payenera kukhala mbali zowongolera zamagetsi, mtengo wonse ndi wapamwamba kuposa mota ya DC.

Pali mitundu iwiri yama mota omwe amagwiritsidwa ntchito mu AC system: induction motor ndi maginito okhazikika a synchronous motor. Permanent maginito synchronous motor akhoza kugawidwa mu sinusoidal kumbuyo EMF okhazikika maginito synchronous galimoto (PMSM) ndi lalikulu yoweyula kumbuyo EMF brushless DC galimoto (BLDCM) malinga ndi mfundo zosiyanasiyana ntchito. Kotero kuti kuyendetsa kwawo panopa ndi kulamulira kumasiyana.

Kumbuyo kwa EMF ya sinusoidal okhazikika maginito synchronous motor ndi sinusoidal. Kuti injini ipange torque yosalala, mafunde omwe akuyenda pamayendedwe amagalimoto ayenera kukhala sinusoidal. Chifukwa chake, chizindikiro chopitilira cha rotor chiyenera kudziwika, ndipo inverter imatha kupereka voliyumu ya sinusoidal kapena yapano kwa mota. Chifukwa chake, PMSM iyenera kutengera ma voltage apamwamba kapena apano. Kusintha kwa encoder kapena solver ndikovutanso kwambiri.

BLDCM sichifunikira sensa yapamwamba kwambiri, chida choyankhira ndichosavuta, ndipo njira yowongolera ndiyosavuta. Kuphatikiza apo, mpweya wamagetsi wa BLDCM trapezoidal wave ndiwothandiza kwambiri kuposa wa PMSM sinusoidal wave, ndipo kuchuluka kwamphamvu kwa BLDCM ndikokwera kuposa kwa PMSM. Chifukwa chake, kugwiritsa ntchito ndi kufufuza kwa maginito okhazikika a brushless DC motor kwalandira chidwi chochulukirapo.