Title :
Effect of rotor position error on commutation in sensorless BLDC motor drives
Author :
Mingyao, Lin ; Qiang, Li ; Weigang, Gu
Author_Institution :
Dept. of Electr. Eng., Southeast Univ., Nanjing, China
Abstract :
In this paper, two kinds of commutation modes of the brushless DC(BLDC) motor drives, the delaying commutation and the leading commutation, are discussed in detail. The current of the unexcited phase is calculated under an ideal operation condition, and the condition of circulating current occurring is analyzed. The result with the compensated commutation is provided. The theoretical analysis is confirmed by the experiment results.
Keywords :
DC motor drives; brushless DC motors; commutation; rotors; compensated commutation; rotor position error commutation; sensorless brushless DC motor drives; unexcited phase current; Brushless DC motors; Commutation; Delay effects; Equations; Low pass filters; Pulse width modulation; Rotors; Sensorless control; Space vector pulse width modulation; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202578
