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Sensorless load angle detection for brushless direct current and stepping motors

Jasper De Viaene (UGent)
(2020)
Author
Promoter
(UGent) and (UGent)
Organization
Abstract
The possibility to accurately position without the need for a position sensor makes stepping motors very appealing for positioning applications. However, drawbacks of the open-loop control are the continuous risk of missing a step due to overload, the high torque ripple and low efficiency.   In addition, BLDC motors are particularly outspoken for speed varying applications. Literature shows that the control method can be improved by controlling a BLDC motor with sinusoidal currents instead of square-wave currents. Unfortunately, feedback techniques typically used in BLDC motors to determine the commutation moments are inadequate for sinusoidal current setpoint generation.   In this study, a sensorless feedback mechanism indicating the actual load and a controller preventing step loss, without noticeably increasing the cost, is proposed for stepping motor applications. In parallel, a computationally simple sensorless method that uses sinusoidal currents to increase the efficiency of BLDC motors is developed.
Keywords
Electrical machine, low-power, sensorless

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Citation

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MLA
De Viaene, Jasper. Sensorless Load Angle Detection for Brushless Direct Current and Stepping Motors. Universiteit Gent. Faculteit Ingenieurswetenschappen en Architectuur, 2020.
APA
De Viaene, J. (2020). Sensorless load angle detection for brushless direct current and stepping motors. Universiteit Gent. Faculteit Ingenieurswetenschappen en Architectuur.
Chicago author-date
De Viaene, Jasper. 2020. “Sensorless Load Angle Detection for Brushless Direct Current and Stepping Motors.” Universiteit Gent. Faculteit Ingenieurswetenschappen en Architectuur.
Chicago author-date (all authors)
De Viaene, Jasper. 2020. “Sensorless Load Angle Detection for Brushless Direct Current and Stepping Motors.” Universiteit Gent. Faculteit Ingenieurswetenschappen en Architectuur.
Vancouver
1.
De Viaene J. Sensorless load angle detection for brushless direct current and stepping motors. Universiteit Gent. Faculteit Ingenieurswetenschappen en Architectuur; 2020.
IEEE
[1]
J. De Viaene, “Sensorless load angle detection for brushless direct current and stepping motors,” Universiteit Gent. Faculteit Ingenieurswetenschappen en Architectuur, 2020.
@phdthesis{8663562,
  abstract     = {{The possibility to accurately position without the need for a position sensor makes stepping motors very appealing for positioning applications. However, drawbacks of the open-loop control are the continuous risk of missing a step due to overload, the high torque ripple and low efficiency. 
 
In addition, BLDC motors are particularly outspoken for speed varying applications. Literature shows that the control method can be improved by controlling a BLDC motor with sinusoidal currents instead of square-wave currents. Unfortunately, feedback techniques typically used in BLDC motors to determine the commutation moments are inadequate for sinusoidal current setpoint generation.
 
In this study, a sensorless feedback mechanism indicating the actual load and a controller preventing step loss, without noticeably increasing the cost, is proposed for stepping motor applications. In parallel, a computationally simple sensorless method that uses sinusoidal currents to increase the efficiency of BLDC motors is developed.}},
  author       = {{De Viaene, Jasper}},
  isbn         = {{9789463553773}},
  keywords     = {{Electrical machine,low-power,sensorless}},
  language     = {{eng}},
  pages        = {{xxviii, 250}},
  publisher    = {{Universiteit Gent. Faculteit Ingenieurswetenschappen en Architectuur}},
  school       = {{Ghent University}},
  title        = {{Sensorless load angle detection for brushless direct current and stepping motors}},
  year         = {{2020}},
}