Design aspects of a high-speed sensorless brushless dc motor using third harmonic back-emf for sensorless control

2008 ◽  
Vol 103 (7) ◽  
pp. 07F110 ◽  
Author(s):  
Kai Wang ◽  
Jianxin Shen ◽  
Fengzheng Zhou ◽  
Weizhong Fei
Keyword(s):  
High Speed ◽  
Sensorless Control ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Speed Sensorless ◽  
Third Harmonic ◽  
Brushless Dc

A Novel Speed Sensorless Control of Brushless DC Motor in Position Servo System

2011 ◽  
Vol 383-390 ◽  
pp. 4424-4431
Author(s):  
Chang Chun Chen ◽  
Jia Dan Wei ◽  
Bo Zhou ◽  
Guo Sheng Li
Keyword(s):  
High Speed ◽  
Short Pulse ◽  
Sensorless Control ◽  
Servo System ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Speed Sensorless ◽  
Zero Crossing ◽  
Brushless Dc ◽  
Position Servo

Zero crossing points of Back-Electromotive force (EMF) is the most mature and widely used method of the speed sensorless control of brushless DC motor (BLDCM). However, with the poor performance from standstill to low speed, it is not suitable for the position servo system. Therefore, this paper first analyzes several conventional speed sensorless control schemes in the BLDCM, then presents a novel control algorithms for the BLDCM. In the proposed method, the short pulse sensing method for the rotor position in the Start-Up process and self-synchronization with zero cross points of back-EMF are combined together. As a result, the BLDCM used in the position servo system can be easily controlled from zero to high speed, the theoretical analysis is verified by the simulation results based on Matlab, it shows that the proposed algorithms can improve the performances of position servo system compared with the conventional methods.

Sensorless Control for High-Speed Brushless DC Motor Based on the Line-to-Line Back EMF

2016 ◽  
Vol 31 (7) ◽  
pp. 4669-4683 ◽  
Author(s):  
Gang Liu ◽  
Chenjun Cui ◽  
Kun Wang ◽  
Bangcheng Han ◽  
Shiqiang Zheng
Keyword(s):  
High Speed ◽  
Sensorless Control ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Brushless Dc
Sign in / Sign up

Export Citation Format

Share Document