Title :
Low-noise external rotor BLDC motor for fan applications
Author :
Lelkes, András ; Krotsch, Jens ; De Doncker, Rik W.
Abstract :
An important market for brushless DC (BLDC) motors is fan applications, where low acoustic noise is of increasing importance. External rotor motors are especially advantageous for space-saving fan-motor-units. The acoustic noise of the motor can be influenced considerably through commutation strategy. The commutating process has been analyzed using space vectors. Motor noise has been reduced significantly using new modulation strategies.
Keywords :
brushless DC motors; commutation; machine theory; noise abatement; rotors; ventilation; acoustic noise reduction; commutating process; commutation strategy; fan applications; low-noise external rotor brushless DC motor; space vectors analysis; space-saving; Acoustic noise; Brushless DC motors; Brushless motors; Commutation; DC motors; Permanent magnet motors; Reluctance motors; Rotors; Synchronous motors; Torque;
Conference_Titel :
Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the
Conference_Location :
Pittsburgh, PA, USA
Print_ISBN :
0-7803-7420-7
DOI :
10.1109/IAS.2002.1043812
