论文信息 - Effect of rotor position error on commutation in sensorless BLDC motor drives

Effect of rotor position error on commutation in sensorless BLDC motor drives

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.

[1] Gyu-Ha Choe,et al. Analysis of torque ripple in BLDC motor with commutation time , 2001, ISIE 2001. 2001 IEEE International Symposium on Industrial Electronics Proceedings (Cat. No.01TH8570).

[2] Kwang Y. Lee,et al. Commutation torque ripple minimization for permanent magnet synchronous machines with Hall effect position feedback , 1998 .

[3] Gui-Jia Su,et al. Low cost sensorless control of brushless DC motors with improved speed range , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[4] Wang Hui. Zero-crossing algorithm and correction of BEMF in the sensorless control of trapezoidal BLDC motors , 2006 .

[5] Zhou Shou-zeng. Development and Application of Rare Earth Permanent Magnet Electrical Machines , 2005 .

[6] J. Shen,et al. Analyses and Compensation of Rotor Position Detection Error in Sensorless PM Brushless DC Motor Drives , 2002, IEEE Power Engineering Review.