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Sensors 2010, 10(7), 6901-6947; doi:10.3390/s100706901

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

Department of Signal Theory, Communications and Telematic Engineering, University of Valladolid (UVA), 47011 Valladolid, Spain
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Received: 10 June 2010 / Revised: 30 June 2010 / Accepted: 5 July 2010 / Published: 19 July 2010
(This article belongs to the Section Chemical Sensors)

Abstract

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. View Full-Text
Keywords: BLDC; back-EMF; sensorless; position; speed; estimator; Hall-effect sensors; electronic processors BLDC; back-EMF; sensorless; position; speed; estimator; Hall-effect sensors; electronic processors
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Gamazo-Real, J.C.; Vázquez-Sánchez, E.; Gómez-Gil, J. Position and Speed Control of Brushless DC Motors Using Sensorless Techniques and Application Trends. Sensors 2010, 10, 6901-6947.

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