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Design of a Piezoelectric Sensor-Based Controller for Mitigation of Torque Ripple in a Brushless DC Machine
Technical Paper
2002-01-3223
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Power Systems Conference
Language:
English
Abstract
Brushless dc machines with non-sinusoidal back-emf are often characterized by significant torque ripple that occurs as a result of the interaction of back-emf and stator current harmonics, as well as cogging torque. In this paper, a method of mitigating the torque ripple is described that utilizes closed-loop feedback control. Specifically, the torque ripple produced by a machine is measured using a piezoelectric sensor. The sensor is constructed from polyvinylidene fluoride (PVDF) film, which produces a voltage in response to subtle strains in the motor housing. The sensed torque ripple provides a feedback that is used to determine stator current harmonics utilizing a controller that is based upon cost function minimization. Simulation and experimental results are used to demonstrate the effectiveness of the control technique.
Authors
- J. Neely
- S. Pekarek - Department of Electrical and Computer Engineering, University of Missouri-Rolla
- P. Beccue - Department of Electrical and Computer Engineering, University of Missouri-Rolla
- N. Benavides - Department of Electrical and Computer Engineering, University of Missouri-Rolla
- M. Ortbals - Department of Electrical and Computer Engineering, University of Missouri-Rolla
- D. Stutts - Department of Mechanical Engineering, University of Missouri-Rolla
- J. Banaskavich - Department of Mechanical Engineering, University of Missouri-Rolla
Citation
Neely, J., Pekarek, S., Beccue, P., Benavides, N. et al., "Design of a Piezoelectric Sensor-Based Controller for Mitigation of Torque Ripple in a Brushless DC Machine," SAE Technical Paper 2002-01-3223, 2002, https://doi.org/10.4271/2002-01-3223.Also In
References
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