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Abstract
This paper presents a speed observer design based on backstepping and slidingmode approaches. The inputs to the observer are the stator current and thevoltage vector components. This observer structure is extended to the integra-tors. The observer stabilizing functions contain the appropriate sliding surfaceswhich result from the Lyapunov function. The rotor angular speed is obtainedfrom the non‐adaptive formula with a sliding mode mechanism. It allowsimprovement of the robustness of parameters uncertainties and the zero rotorspeed to work (near to the unobservable region). In the sensorless controlsystem, the classical first‐order sliding‐mode controllers are applied with thetransformation of the multi‐scalar variable. The proposed control system struc-ture can be named full‐decoupled due to multi‐scalar variables transformationand the feedback control law obtained from the Lyapunov theorem. The theo-retical derivations are verified in experimental waveforms. The sensorlesscontrol system's robustness is verified in the experimental investigations byusing the nominal machine parameters uncertainties method.
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1002/asjc.2244
- License
- Copyright (2020 Chinese Automatic Control Society and John Wiley & Sons Australia, Ltd)
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ASIAN JOURNAL OF CONTROL
no. 23,
pages 636 - 647,
ISSN: 1561-8625 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Morawiec M., Lewicki A., Wilczyński F.: Speed observer of induction machine based on backstepping and sliding mode for low‐speed operation// ASIAN JOURNAL OF CONTROL -Vol. 23,iss. 2 (2021), s.636-647
- DOI:
- Digital Object Identifier (open in new tab) 10.1002/asjc.2244
- Sources of funding:
-
- Projekt finansowany z NCN: 2015/19/N/ST7/03078 Projekt finansowany z NCN: DEC‐2013/09/B/ST7/01642
- Verified by:
- Gdańsk University of Technology
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