Position and Speed Control of Brushless DC Motors Using Sensorless Techniques and Application Trends

Sensors

José Carlos Gamazo-Real¹  Ernesto Vázquez-Sánchez² 

[1] Department of Signal Theory, Communications and Telematic Engineering, University of Valladolid (UVA), 47011 Valladolid, Spain;

关键词: BLDC;    back-EMF;    sensorless;    position;    speed;    estimator;    Hall-effect sensors;    electronic processors;   

DOI  :  10.3390/s100706901

来源: mdpi

【 摘 要 】

This paper provides a technical review of position and speed sensorless methods for controlling Brushless Direct Current (BLDC) motor drives, including the background analysis using sensors, limitations and advances. The performance and reliability of BLDC motor drivers have been improved because the conventional control and sensing techniques have been improved through sensorless technology. Then, in this paper sensorless advances are reviewed and recent developments in this area are introduced with their inherent advantages and drawbacks, including the analysis of practical implementation issues and applications. The study includes a deep overview of state-of-the-art back-EMF sensing methods, which includes Terminal Voltage Sensing, Third Harmonic Voltage Integration, Terminal Current Sensing, Back-EMF Integration and PWM strategies. Also, the most relevant techniques based on estimation and models are briefly analysed, such as Sliding-mode Observer, Extended Kalman Filter, Model Reference Adaptive System, Adaptive observers (Full-order and Pseudoreduced-order) and Artificial Neural Networks.

【 授权许可】

CC BY   
© 2010 by the authors licensee MDPI, Basel, Switzerland.