DSP-based brushless DC motor sensorless drivers with sine PWM

Author

Chern, Tzuen-Lih ; Liu, Li-Hsiang ; Tien, Chin-Wen ; Chen, Chun-Yu

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

fYear

2009

fDate

2-5 Nov. 2009

Firstpage

1349

Lastpage

1353

Abstract

This paper presents a brushless DC motor sensorless driver with sine pulse width modulation signal. For speed control, the current feedback is included to the closed loop control strategy to decrease the power consumption and increase the motor performance. In addition, the sine wave phase-changing signal is closed with a set of specific electrical angles in the zero crossing point to detect the back electromotive force and observe the output performance. A simple mathematical model of brushless DC motor is derived, and the control strategy is implemented by digital signal processing (DSP) platform. The validity of the method is verified by the experiments.

Keywords

angular velocity control; brushless DC motors; closed loop systems; digital signal processing chips; feedback; mathematical analysis; pulse width modulation; sensorless machine control; DSP; back electromotive force; brushless DC motor sensorless drivers; closed loop control strategy; current feedback; digital signal processing; mathematical model; power consumption; sine PWM; sine pulse width modulation signal; speed control; Brushless DC motors; DC motors; Digital signal processing; Energy consumption; Feedback loop; Phase detection; Pulse width modulation; Sensorless control; Space vector pulse width modulation; Velocity control; Brushless DC Motor; Digital Signal Processing; Sensorless;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on

Conference_Location

Taipei

Print_ISBN

978-1-4244-4166-2

Electronic_ISBN

978-1-4244-4167-9

Type

conf

DOI

10.1109/PEDS.2009.5385681

Filename

5385681