Active disturbance attenuation control for permanent magnet synchronous motor via feedback domination and disturbance observer
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Zhang, C
Li, H
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Abstract
In this study, a novel active disturbance attenuation controller is investigated for the permanent magnet synchronous motor servo system by integrating a feedback domination technique and disturbance observer-based control strategy. A disturbance observer is first constructed to enable an active estimation process of the mismatched disturbances. Second, the authors adopt a feedback domination technique, rather than popularly used feedback linearisation methods, to handle the system non-linearities. A Lyapunov function-based recursive design is then carried out to derive the composite controllers in an explicit way, while a semi-global input-to-state stability can be guaranteed. The proposed methodology not only performs an improved closed-loop control performance comparing to several existing results, but also renders a simple control law which will ease its practical implementations. Abundant comparison simulation results are provided to demonstrate the effectiveness of the proposed scheme.
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IET Control Theory and Applications
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11
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6
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Applied mathematics
Mechanical engineering
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Niu, X; Zhang, C; Li, H, Active disturbance attenuation control for permanent magnet synchronous motor via feedback domination and disturbance observer, IET Control Theory and Applications, 2017, 11 (6), pp. 807-815