LAPSE:2023.8450
Published Article
LAPSE:2023.8450
Speed Control of Magnetic Drive-Trains with Pole-Slipping Amelioration
February 24, 2023
The paper introduces new techniques to reduce the potential for pole-slipping induced by control systems and presents a low-cost pole-slipping detection and recovery scheme for magnetic drive-trains (MDTs). For the first time, the paper shows that a combination of electromagnetic and load-torque excitations which individually are not greater than the maximum coupling torque can initiate pole-slipping. For applications where acceleration feedback is unavailable, the motor-side inertia is virtually increased with a tracking differentiator to provide feedback of acceleration. Subsequently, controller design and parameter optimization are discussed. Experimental measurements on a custom test facility verify the presented principles that low-bandwidth controller designs with low inertia ratios can accommodate a wider range of on-load startup torque and load-torque disturbances without pole-slipping. To address overload issues, a pole-slipping detection method based on the kurtosis of electromagnetic torque and a recovery strategy based on converting the state of pole-slipping into that of on-load startup are presented. Experimental results demonstrate that detecting slip anomalies without load-side information, and recovery from pole-slipping without auxiliary mechanical devices are both feasible.
Keywords
dynamic analysis, magnetic drive-trains, pole-slipping detection, recovery, speed control
Suggested Citation
Liao X, Bingham C, Smith T. Speed Control of Magnetic Drive-Trains with Pole-Slipping Amelioration. (2023). LAPSE:2023.8450
Author Affiliations
Liao X: Guangdong University of Petrochemical Technology (GDUPT), Maoming 525000, China; The Joint Research Lab between GDUPT and University of Lincoln, Lincoln LN6 7TS, UK [ORCID]
Bingham C: School of Engineering, University of Lincoln, Lincoln LN6 7TS, UK [ORCID]
Smith T: School of Engineering, University of Lincoln, Lincoln LN6 7TS, UK
Journal Name
Energies
Volume
15
Issue
21
First Page
8148
Year
2022
Publication Date
2022-11-01
Published Version
ISSN
1996-1073
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Original Submission
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PII: en15218148, Publication Type: Journal Article
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LAPSE:2023.8450
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doi:10.3390/en15218148
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Feb 24, 2023
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