The effect of magnetic saturation on sensorless control of a brushless permanent magnet motor under AC and DC excitation
Griffo, Antonio and Wrobel, Rafal and Mellor, Philip and Holliday, Derrick and Sangha, Parminder and Dinu, Andrei and Holme, Marc; (2011) The effect of magnetic saturation on sensorless control of a brushless permanent magnet motor under AC and DC excitation. In: 2011 IEEE Energy conversion congress and exposition (ECCE). IEEE, USA, pp. 1582-1589. ISBN 9781457705427 (https://doi.org/10.1109/ECCE.2011.6063971)
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The design and performance of a permanent magnet rotor for a concentrated wound, torque dense machine exhibiting a saliency profile suited to high-frequency injection based zero- and low-speed sensorless control is presented. Rotor design is mechanically constrained by an existing stator. Electromagnetic specifications require the motor to match the torque capability of an existing baseline machine whilst demonstrating a saliency characteristic suited for injection based, low-speed sensorless control. The effects of fundamental current amplitude on flux saturation and saliency profile are investigated for brushless DC and brushless AC operation. The saliency profiles required for sensorless detection show significant differences under these operating modes. For the selected rotor design, brushless AC operation results in a stronger saliency signature at light loads, which quickly deteriorates with the onset of saturation. Brushless DC operation results in more gradual deterioration in saliency signature, suggesting sensorless control would be possible over a greater torque range.
ORCID iDs
Griffo, Antonio, Wrobel, Rafal, Mellor, Philip, Holliday, Derrick ORCID: https://orcid.org/0000-0002-6561-4535, Sangha, Parminder, Dinu, Andrei and Holme, Marc;-
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Item type: Book Section ID code: 41154 Dates: DateEvent2011PublishedSubjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering Depositing user: Pure Administrator Date deposited: 17 Sep 2012 14:34 Last modified: 11 Nov 2024 14:50 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/41154