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

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

7

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6940933

Filename

6940933