Robustness evaluation of SMO based speed-position estimation in BLDC motor

Author

Girija, P.K. ; Prince, Anandarajah

Author_Institution

Dept. of Electr. Eng., Rajiv Gandhi Inst. of Technol., Kottayam, India

fYear

2014

fDate

9-11 Jan. 2014

Firstpage

1

Lastpage

4

Abstract

A robust sensorless back-EMF detection method for brushless dc (BLDC) motor drive system is presented in this paper. This estimated back-EMF is used to deduce the rotor position and the angular velocity of the rotor. Sliding Mode Observer (SMO) which is low sensitive to parameter variations is proposed to estimate the phase-to-phase trapezoidal back-EMF in a BLDC motor by the measurement of stator currents and voltages. The paper focuses the robustness evaluation of the Sliding Mode Observer to the variation of motor parameters.

Keywords

DC motor drives; brushless DC motors; observers; robust control; sensorless machine control; variable structure systems; BLDC motor; SMO; angular velocity; brushless DC motor drive system; robust sensorless back-EMF detection method; robustness evaluation; rotor position; sliding mode observer; speed-position estimation; AC motors; Brushless DC motors; Observers; Rotors; Brushless dc motor; non-sinusoidal back-EMF; sliding mode observer; two-phase conduction;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Electrical Engineering (ICAEE), 2014 International Conference on

Conference_Location

Vellore

Type

conf

DOI

10.1109/ICAEE.2014.6838473

Filename

6838473