Research on Position Sensorless Control System of High-Speed Brushless DC Motor

2017 ◽  
Author(s):  
RongChun Guo ◽  
ZengMu Cheng ◽  
JinDong Li
Keyword(s):  
Control System ◽  
High Speed ◽  
Sensorless Control ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Brushless Dc ◽  
Position Sensorless

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.

Design and Simulation of Brushless DC Motor Control System Based on DSP

2011 ◽  
Vol 109 ◽  
pp. 395-399
Author(s):  
Xia Zhang ◽  
Ren Yun Sun ◽  
Xi Ming Liu
Keyword(s):  
Motor Control ◽  
Control System ◽  
Sensorless Control ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Brushless Dc ◽  
Position Detection ◽  
Dc Motor Control ◽  
Motor Control System ◽  
Key Techniques

Based on the principle of sensorless control of brushless DC motor (BLDC) and combining the characteristics of TMS320LF2407A, this paper mainly researched on the key techniques of position detection and starting for sensorless BLDC. And put forward a sensorless BLDC control system, which combined back-EMF and pre-position start mode. The simulation has shown that the control system meets the requirements of stability and rapidity, and it is able to control motor precisely.

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