Title :
Study on commutation for permanent magnet brushless DC motor
Author :
Deng, Li ; Liu, Ping ; Fu, Qiang ; Zheng, Qunying ; Liu, Heping
Author_Institution :
State Key Lab. of Power Transm. Equip.& Syst. Security & New Technol., Chongqing Univ., Chongqing
Abstract :
The control methods of permanent magnet brushless DC (BLDC) with position sensor and without sensor both involve a serious problem of phase commutation electromagnetic process. By discussing the electromagnetic process of phase commutation for BLDC with three-phase Y-connected windings in six-state operate mode, three kinds of commutation instances of BLDC motor drives, the correcting commutation, the delaying commutation and the leading commutation, was discussed in detail in the paper. Then taking a high power BLDC for an example, phase current waveform of three kinds of commutation instances was shown through computer simulation and experiment. These simulation and experiment results justify the theoretical analysis of three sorts of commutation.
Keywords :
DC motor drives; brushless DC motors; machine control; permanent magnet motors; position control; BLDC motor drives; Y-connected windings; electromagnetic process; permanent magnet brushless DC motor; phase commutation electromagnetic process; phase current waveform; position sensor control; six-state operate mode; Brushless DC motors; Commutation; DC motors; Delay; Electromagnetic analysis; Equations; Magnetic analysis; Magnetic sensors; Sensor systems; Stator windings;
Conference_Titel :
Automation Congress, 2008. WAC 2008. World
Conference_Location :
Hawaii, HI
Print_ISBN :
978-1-889335-38-4
Electronic_ISBN :
978-1-889335-37-7
