Fuzzy Disturbance Observer-Based Sliding Mode Control for Liquid-Filled Spacecraft With Flexible Structure Under Control Saturation

Dou, Lihua; Du, Miaomiao; Zhang, Xiuyun; Hui, Du; Liu, Wenjing

doi:10.1109/access.2019.2946961

Cited by 14 publications

(5 citation statements)

References 52 publications

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“…A. Fagiolini et al achieve linear state observation of the plastic deformation of the flexible joint reducer by measuring the joint and motor position [17]. L. Dou et al propose a terminal sliding mode control (TSMC) strategy based on fuzzy interference observer to target liquid shaking interference of a flexible liquid-filled spacecraft [18]. C. Pan et al design a state observer for single-degreeof-freedom flexible joint manipulator disturbance to compensate for interference, turning the nonlinear system into a linear integral sequence system [19].…”

Section: Related Workmentioning

confidence: 99%

A Novel Constant Damping and High Stiffness Control Method for Flexible Space Manipulators Using Luenberger State Observer

Yang

Zeng³

et al. 2023

Applied Sciences

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This paper presents a novel control strategy for transferring large inertia loads using flexible space manipulators in orbit. The proposed strategy employs a Luenberger state observer and damping-stiffness controller to address issues of large tracking error and vibration. A comprehensive joint dynamics model is developed to identify the main sources of disturbance, and a Luenberger state observer is designed to estimate unmeasurable transmission deformation. Transmission stiffness and load inertia perturbations are identified based on the estimated results. By adjusting velocity damping and the gain of the forward channel, perturbations are suppressed to maintain optimal system damping and stiffness. Simulation and physical experiments demonstrate the effectiveness of the algorithm, with simulation experiments showing smoother joint output characteristics and minimal vibration under large load inertia changes, and a 97% reduction in internal deformation. Physical experiments demonstrate improved joint dynamic command tracking performance, with an 88% reduction in position tracking error. The algorithm provides a practical and efficient approach for transferring large inertia scientific payloads in space.

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Section: Related Workmentioning

confidence: 99%

A Novel Constant Damping and High Stiffness Control Method for Flexible Space Manipulators Using Luenberger State Observer

Yang

Zeng³

et al. 2023

Applied Sciences

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“…Zhang [8] proposed a super-twisting disturbance observer for attitude takeover control of noncooperative targets. Liu [9] used a fuzzy disturbance observer to observe uncertain parameters caused by spacecraft capturing space debris on the basis of sliding mode control, and similarly, Dou [10] used a fuzzy disturbance observer to observe the internal liquid sloshing disturbance of spacecraft. Javaid [11] designed a tracking fast-changing disturbance sliding mode observer for attitude tracking control of rigid spacecraft.…”

Section: Introductionmentioning

confidence: 99%

Attitude control of combined spacecraft with fuzzy neural network disturbance observer

Sun,

Li,

et al. 2024

J. Phys.: Conf. Ser.

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A finite-time control strategy based on a fuzzy neural network disturbance observer (FNNDO) and nonsingular terminal sliding mode (NTSM) is proposed for the attitude control system of a combined spacecraft in the presence of non-cooperative targets with competitive torque output. First, a mathematical model of the combined spacecraft attitude is established with the service spacecraft as the reference. Then, the external disturbances and competitive torque output from non-cooperative targets are treated as generalized disturbances, and FNNDO is employed for tracking and compensation. Subsequently, a NTSM controller is designed to achieve finite-time attitude takeover control of non-cooperative targets. The stability of the disturbance observer and controller is proven using Lyapunov stability theory. Simulation results demonstrate that this control strategy effectively handles the competitive actions of non-cooperative targets while rapidly stabilizing the combined spacecraft’s attitude at the desired values.

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“…With the incorporation of a fuzzy disturbance observer and terminal sliding mode control strategy, the controller designed in Ref. [13] outperformed a conventional controller in chattering reduction and fast convergence speed. The above methods can effectively decrease disturbances.…”

Section: Introductionmentioning

confidence: 99%

A Novel Disturbance-Free-Payload Satellite Design for High-Precision Collaborative Observation

et al. 2023

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High-precision collaborative observation is urgently needed due to the increasing demands of space science missions. Based on a conventional DFP (disturbance-free-payload) configuration, this paper presents a novel DFP that has great potential to deal with collaborative observation missions. The novel DFP system is developed, in which two or more payloads are installed via a non-contact unit and installed parallel configuration. Thus, the novel design is a multibody dynamics system. With the incorporation of the dynamics of the flexible umbilical between the PMs (payload modules) and SM (support module), the six-degrees-of-freedom multibody rigid–flexible dynamics of the whole system are derived. To verify the effectiveness of the novel DFP design in a collaborative observation mission, a multi-loop controller is designed for an inertial Earth collaborative observation mission. Simulation studies are conducted, which indicate that the proposed design can complete collaborative observation and achieve high precision.

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Fuzzy Disturbance Observer-Based Sliding Mode Control for Liquid-Filled Spacecraft With Flexible Structure Under Control Saturation

Cited by 14 publications

References 52 publications

A Novel Constant Damping and High Stiffness Control Method for Flexible Space Manipulators Using Luenberger State Observer

A Novel Constant Damping and High Stiffness Control Method for Flexible Space Manipulators Using Luenberger State Observer

Attitude control of combined spacecraft with fuzzy neural network disturbance observer

A Novel Disturbance-Free-Payload Satellite Design for High-Precision Collaborative Observation

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