Xa kuthelekiswa nemoto ye-DC kunye nemoto engatshintshiyo, iimpawu zobugcisa eziphambili zemoto ye-Brushless DC zezi:

1. Iimpawu zokusebenza kwemoto yeDC zifunyanwa ngolawulo lwe-elektroniki. Inolawulo olungcono kunye noluhlu olubanzi lwesantya.

2. Ulwazi lwempendulo yendawo yeRotor kunye nomqhubi we-inverter we-elektroniki wezigaba ezininzi ziyafuneka.

3. Ngokuyintloko, i-AC motor inokusebenza ngesantya esiphezulu ngaphandle kokukrala kunye nokukrweleka kwebrashi kunye ne-commutator. Ithembekile kakhulu, isebenza ixesha elide kwaye akukho mfuneko yokugcinwa.

4. Imoto ye-DC engenabhrashi inamandla aphezulu, akukho lahleko ye-rotor kunye nobushushu, kwaye isebenza kakuhle kakhulu: xa kuthelekiswa nedatha, ukusebenza kakuhle kwemoto engatshintshiyo ye-7.5 kW yi-86.4%, kwaye ukusebenza kakuhle kwemoto ye-DC engenabhrashi enomthamo ofanayo kunokufikelela kwi-92.4%.

5. Kufuneka kubekho iindawo zokulawula ze-elektroniki, ixabiso lilonke liphezulu kunemoto ye-DC.

Kukho iintlobo ezimbini zeemoto ezisetyenziswa kwinkqubo ye-AC: i-induction motor kunye ne-permanent magnet synchronous motor. I-permanent magnet synchronous motor inokwahlulwa ibe yi-sinusoidal back EMF permanent magnet synchronous motor (PMSM) kunye ne-square wave back EMF brushless DC motor (BLDCM) ngokwemigaqo yokusebenza eyahlukileyo. Ukuze i-driving current kunye ne-control mode yazo zahluke.

I-EMF engasemva ye-sinusoidal permanent magnet synchronous motor yi-sinusoidal. Ukuze i-motor ivelise i-torque egudileyo, umbane ohamba nge-motor winding kufuneka ube yi-sinusoidal. Ke ngoko, kufuneka kwaziwe isignali yesikhundla se-rotor eqhubekayo, kwaye i-inverter inokubonelela nge-sinusoidal voltage okanye umbane kwi-motor. Ke ngoko, i-PMSM kufuneka isebenzise i-voltage ephezulu okanye umbane. Isisombululo se-position encoder okanye i-resolver naso sinzima kakhulu.

I-BLDCM ayidingi sensor yesikhundla esinesisombululo esiphezulu, isixhobo sempendulo silula, kwaye i-algorithm yokulawula ilula kakhulu. Ukongeza, intsimi yemagnethi yomoya ye-BLDCM trapezoidal wave isebenza kakuhle kuneye-PMSM sinusoidal wave, kwaye uxinano lwamandla e-BLDCM luphezulu kuneye-PMSM. Ke ngoko, ukusetyenziswa kunye nophando lwe-DC motor engenamaginethi esisigxina ifumene ingqwalasela engakumbi.