Reaching conditions for variable structure control with output feedback

Yallapragada, Subbarao V.; Heck, B.S.; Finney, J.D.

doi:10.2514/3.21709

Cited by 38 publications

(16 citation statements)

References 10 publications

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“…Early on, Zak and Hui [6] developed an algorithm for output-dependent sliding surface design of uncertain systems, based on the eigenstructure method. Yallapragada et al [7] addressed the reaching problem for the static output feedback sliding mode controller design. In succeeding years, Kwan [ presented an adapted dynamic output feedback controller to remove two major limits from the scheme of Zak's method.…”

Section: Introductionmentioning

confidence: 99%

Dynamic output feedback sliding mode control for uncertain mechanical systems without velocity measurements

Chang

2010

ISA Transactions

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Section: Introductionmentioning

confidence: 99%

Dynamic output feedback sliding mode control for uncertain mechanical systems without velocity measurements

Chang

2010

ISA Transactions

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“…Consider the linearized model of the longitudinal dynamics of an aircraft which has been used by Yallapragada et al (15) . To demonstrate the effectiveness of the proposed method, the system uncertain matrix and the mismatched disturbance are introduced.…”

Section: Numerical Examplementioning

confidence: 99%

Output Feedback Integral Sliding Mode Control for Uncertain Systems with Bounded L2 Performance

Chang

Ting

2009

JSDD

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This paper presents an output feedback sliding mode control algorithm for linear MIMO systems with mismatched parameter uncertainties along with disturbances and matched nonlinear perturbations. A scheme of the output-dependent integral sliding surface is proposed and a control law is then designed to satisfy the reaching and sliding condition. Through utilizing H ∞ control analytical technique, once the system is in the sliding mode, the proposed algorithm can guarantee robust stabilization and sustain the nature of performing disturbance attenuation in terms of an algebraic Riccati equation. Finally, the feasibility of our proposed algorithm is illustrated using a numerical example.

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“…20) Zak et al 21) studied use of output feedback in VSC with uncertainties for a class of controllers. Yallapragada et al 24) considered reaching Ó 2006 The Japan Society for Aeronautical and Space Sciences condition design for VSC with static output feedback.…”

Section: Introductionmentioning

confidence: 99%

“…In an attempt to utilize the best aspects of these two control methods, this paper explores the applicability of VSOFC approach 24) to flexible spacecraft for large angle rotational maneuvers and integrates it with the input shaping technique to actively suppress the elastic mode vibrations. Figure 1 shows a block diagram of the proposed control scheme for vibration reduction of the flexible spacecraft during attitude maneuvers.…”

Section: Introductionmentioning

confidence: 99%

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Maneuvers and Vibration Suppression of Flexible Spacecraft Integrating Variable Structure Control and Input Shaping Technique

2006

Trans. Japan Soc. Aero. S Sci.

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A generalized scheme based on variable structure output feedback control (VSOFC) and input shaping (IS) technique has been proposed for rotational maneuvers and vibration suppression of an orbiting spacecraft with flexible appendages. The proposed control design process is twofold: design of the attitude controller followed by the design of a flexible vibration attenuator. Based on VSOFC theory, the attitude controller using only the attitude and angular rate measurement consists of linear and discontinuous feedback terms. The linear and discontinuous feedback gains are designed so that the sliding surface exists and is globally reachable. With the presence of this attitude controller, an additional vibration attenuator using input shaping technique is designed to eliminate unwanted flexible modes of vibration while achieving the desired closed-loop motion by producing a command profile that only requires information about the natural frequency and damping of the closed-loop system. The proposed control strategy has been implemented on a flexible spacecraft, which is a hub with a cantilever flexible beam appendage and can undergo a single-axis rotation. The results have proven the potential of this approach to control flexible spacecraft.

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Reaching conditions for variable structure control with output feedback

Cited by 38 publications

References 10 publications

Dynamic output feedback sliding mode control for uncertain mechanical systems without velocity measurements

Dynamic output feedback sliding mode control for uncertain mechanical systems without velocity measurements

Output Feedback Integral Sliding Mode Control for Uncertain Systems with Bounded L2 Performance

Maneuvers and Vibration Suppression of Flexible Spacecraft Integrating Variable Structure Control and Input Shaping Technique

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