A Minimum Parameter Adaptive Approach for Rejecting Multiple Narrow-Band Disturbances With Application to Hard Disk Drives

Chen, Xu; Tomizuka, Masayoshi

doi:10.1109/tcst.2011.2178025

Cited by 104 publications

(57 citation statements)

References 18 publications

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“…It is also assumed that the possible small variations or uncertainties of the plant model can be handled by a robust control design. The problem of adaptive regulation as defined above has been previously addressed in a number of papers ( [11][12][13][14][15][16][17][18][19][20][21]) among others. [3] presents a survey of the various techniques (up to 2010) used in adaptive regulation as well as a review of a number of applications.…”

Section: The Adaptive Regulation Paradigmmentioning

confidence: 99%

Adaptive active vibration isolation – A control perspective

Landau

Airimiţoaie

Silva

et al. 2015

MATEC Web of Conferences

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Abstract. In many classes of applications like active vibration control and active noise control, the disturbances can be characterized by their frequencies content and their location in a specific region in the frequency domain. The disturbances can be of narrow band type (simple or multiple) or of broad band type. A model can be associated to these disturbances. The knowledge of the disturbance model as well as of the compensator system is necessary for the design of an appropriate control system in order to attenuate (or to reject) their effect upon the system to be controlled. The attenuation of disturbances by feedback is limited by the Bode Integral and the "water bed" effect upon the output sensitivity function. In such situations, the feedback approach has to be complemented by a "feedforward disturbance compensation" requiring an additional transducer for getting information upon the disturbance. Unfortunately in most of the situations the disturbances are unknown and time-varying and therefore an adaptive approach should be considered. The generic term for adaptive attenuation of unknown and time-varying disturbances is "adaptive regulation" (known plant model, unknown and time-varying disturbance model).The paper will review a number of recent developments for adaptive feedback compensation of multiple unknown and timevarying narrow band disturbances and for adaptive feedforward compensation of broad band disturbances in the presence of the inherent internal positive feedback caused by the coupling between the compensator system and the measurement of the image of the disturbance. Some experimental results obtained on a relevant active vibration control system will illustrate the performance of the various algorithms presented.

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Section: The Adaptive Regulation Paradigmmentioning

confidence: 99%

Adaptive active vibration isolation – A control perspective

Landau

Airimiţoaie

Silva

et al. 2015

MATEC Web of Conferences

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“…There are only a few control methods considering the influence of disturbances or aiming at rejecting disturbances, for example, ∞ control, adaptive control, and disturbance rejection control. A considerable amount of literatures can be found on ∞ robust control [52][53][54] and adaptive control [55][56][57][58] for vibration suppression problems. Nevertheless, the disturbances considered in ∞ controllers are normally measurement noises with low amplitude and zero mean value.…”

Section: Introductionmentioning

confidence: 99%

Generalized‐Disturbance Rejection Control for Vibration Suppression of Piezoelectric Laminated Flexible Structures

Zhang

Wang

Zhang

et al. 2018

Shock and Vibration

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In the framework of disturbance rejection (DR) control, the paper proposes a generalized-disturbance rejection (GDR) control with proportional-integral (PI) observer for vibration suppression of smart structures under any unknown continuous disturbances. In the proposed GDR-PI control, a refined state space model is first constructed, and a generalized disturbance including the disturbance influence matrices, unknown physical disturbances, and state variables is defined. In the closed loop of GDR-PI control, physical disturbances can be counteracted indirectly by feeding back estimated generalized disturbances. By this means, the GDR-PI control remedies most of the defects in conventional DR control and has excellent performances especially in the following situations: (i) the disturbances are completely unknown; (ii) the number of sensor signals is less than the number of disturbances; (iii) the unknown disturbances vary fast. Finally, the GDR-PI control is validated and compared with ∞ state feedback control and conventional DR control available in the literature for vibration suppression of smart beams.

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“…Because of its industrial and defense applications, the problem of suppression of unknown disturbances dominated by a sum of a finite number of periodic components has attracted considerable attention during the past decades [1][2][3][4][5][6][7][8][9]. In high-accuracy tracking systems, the identification and rejection of vibrational disturbances is crucial.…”

Section: Introductionmentioning

confidence: 99%

Rejection of unknown periodic disturbances for continuous‐time MIMO systems with dynamic uncertainties

Jafari

Ioannou

2016

Adaptive Control & Signal

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Rejection of unknown periodic disturbances in multi-channel systems has several industrial applications that include aerospace, consumer electronics, and many other industries. This paper presents a design and analysis of an output-feedback robust adaptive controller for multi-input multi-output continuous-time systems in the presence of modeling errors and broadband output noise. The trade-off between robust stability and performance improvement as well as practical design considerations for performance improvements are presented. It is demonstrated that proper shaping of the open-loop plant singular values as well as over-parameterizing the controller parametric model can significantly improve performance. Numerical simulations are performed to demonstrate the effectiveness of the proposed scheme.

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A Minimum Parameter Adaptive Approach for Rejecting Multiple Narrow-Band Disturbances With Application to Hard Disk Drives

Cited by 104 publications

References 18 publications

Adaptive active vibration isolation – A control perspective

Adaptive active vibration isolation – A control perspective

Generalized‐Disturbance Rejection Control for Vibration Suppression of Piezoelectric Laminated Flexible Structures

Rejection of unknown periodic disturbances for continuous‐time MIMO systems with dynamic uncertainties

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