Title :
Sensorless control of BLDC motor from zero to low speed based on rotor saliency
Author :
Yu Liu ; Miao Wang ; Longya Xu
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
A sensorless brushless DC (BLDC) control algorithm based on rotor saliency is proposed in this paper. A voltage pulse injection method is used for inductance measurement and the peak inductance current is measured through the salient phase to increase accuracy. Zero speed and arbitrary low speed sensorless operations can be achieved with the proposed algorithm. Finite element analysis method (FEM) simulations and experimental results are provided to verify the proposed control algorithm.
Keywords :
brushless DC motors; finite element analysis; inductance measurement; machine control; rotors; BLDC motor; FEM; finite element analysis method; inductance measurement; peak inductance current; rotor saliency; sensorless brushless DC control algorithm; sensorless control; voltage pulse injection method; Commutation; Finite element analysis; Inductance; Inductance measurement; Permanent magnet motors; Rotors; Sensorless control; BLDC; low speed; rotor saliency; sensorless control; zero speed;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6940933
