Hoʻohālikelike ʻia me ka motor DC a me ka motor asynchronous, ʻo nā ʻano ʻenehana koʻikoʻi o Brushless DC motor:

1. Loaʻa nā hiʻohiʻona hana o ka motor DC e ka mana uila. Loaʻa iā ia ka mana ʻoi aku ka maikaʻi a me ka laulā ākea ākea.

2.Rotor kūlana manaʻo 'ike a me ka uila multiphase inverter Keaukaha pono.

3.Essentially, hiki i ka motika AC ke hana i ka wikiwiki kiʻekiʻe me ka ʻole o ka uila a me ka abrasion o ka pulupulu a me ka commutator. Loaʻa iā ia ka hilinaʻi kiʻekiʻe, ke ola hana lōʻihi a ʻaʻohe pono o ka mālama.

4.Brushless DC motor he kiʻekiʻe mana kumu,ʻaʻohe poho o ka rotor a me ka wela, a kiʻekiʻe ka pono: i ka hoʻohālikelikeʻia me kaʻikepili, ka pono o 7.5 kW asynchronous kaʻa he 86.4%, a me ka pono o ka mana like brushless DC kaʻa hiki ke hiki i 92.4% .

5. Pono nā ʻāpana mana uila, ʻoi aku ka nui o ke kumukūʻai ma mua o ka motor DC.

ʻElua mau ʻano kaʻa i hoʻohana ʻia i ka ʻōnaehana AC: induction motor a me permanent magnet synchronous motor. Hiki ke hoʻokaʻawale ʻia ka mīkini paʻa paʻa paʻa i loko o ka sinusoidal back EMF permanent magnet synchronous motor (PMSM) a me ka nalu square back EMF brushless DC motor (BLDCM) e like me ke kumu hana ʻokoʻa. No laila ʻokoʻa kā lākou hoʻokele kaʻa a me ke ʻano hoʻokele.

ʻO ka EMF hope o ka sinusoidal permanent magnet synchronous motor he sinusoidal. No ka hana ʻana o ke kaʻa i ka torque maʻemaʻe, ʻo ke ʻano e kahe ana ma ka wili kaʻa he sinusoidal. No laila, pono e ʻike ʻia ka hōʻailona kūlana rotor mau, a hiki i ka inverter ke hāʻawi i ka volta sinusoidal a i ʻole i kēia manawa i ka kaʻa. No laila, pono ka PMSM e hoʻohana i ka volta kiʻekiʻe a i ʻole kēia manawa. He paʻakikī loa ka hoʻonā o ka encoder kūlana a i ʻole ka mea hoʻonā.

ʻAʻole pono ʻo BLDCM i kahi sensor kūlana kiʻekiʻe, maʻalahi ka mea pane, a maʻalahi ka algorithm control. Eia kekahi, ʻoi aku ka maikaʻi o ka nalu o ka hawewe trapezoidal BLDCM ma mua o ka hawewe sinusoidal PMSM, a ʻoi aku ka kiʻekiʻe o ka mana o ka BLDCM ma mua o ka PMSM. No laila, ua loaʻa i ka noi a me ka noiʻi ʻana o ke kaʻa DC brushless mau loa.