Title :
Sliding mode observer for position and speed estimations in brushless DC motor (BLDCM)
Author :
Hicham, Fakham ; Mohamed, Djemai ; Abdellatif, Reama ; Pierre, Blazevic
Author_Institution :
Laboratoire de Robotique de Versailles, Velizy, France
Abstract :
Back electromotive force EMF is the only electric quantity able to provide instantaneous information on the mechanical variables of the electrical motor; that is true for the position and speed. In this paper, a new sliding mode observer of the trapezoidal back EMF is applied to the BLDCM in order to ensure the control without speed and position sensors. A theoretical study is developed and the results obtained by simulation are presented to show the effectiveness of the method.
Keywords :
brushless DC motors; electric potential; machine control; permanent magnet motors; position control; variable structure systems; velocity control; backelectromotive force; brushless DC motor; mechanical variables; position estimations; sliding mode observer; speed estimations; Brushless DC motors; Commutation; DC motors; Inverters; Magnetic sensors; Rotors; Sensorless control; Sliding mode control; Synchronous motors; Voltage;
Conference_Titel :
Industrial Technology, 2004. IEEE ICIT '04. 2004 IEEE International Conference on
Print_ISBN :
0-7803-8662-0
DOI :
10.1109/ICIT.2004.1490268
