scholarly journals Robust Fuzzy Attitude Stabilization of Networked Spacecraft under Actuator Saturation and Persistent Disturbance

2020 ◽  
Vol 53 (2) ◽  
pp. 14869-14875
Author(s):  
Shidong Xu ◽  
Zheng Huang
Keyword(s):  
Actuator Saturation ◽  
Attitude Stabilization

Saturated output feedback control for finite-time attitude stabilization of spacecraft

2020 ◽  
Vol 234 (23) ◽  
pp. 4557-4571
Author(s):  
Yuquan Xia ◽  
Yuxin Su
Keyword(s):  
Output Feedback ◽  
Finite Time ◽  
Actuator Saturation ◽  
A Priori ◽  
Output Feedback Control ◽  
Lyapunov Stability Theory ◽  
Attitude Stabilization ◽  
Homogeneous Method ◽  
Finite Time Stabilization ◽  
Attitude Measurements

The finite-time attitude stabilization of spacecraft subject to actuator constraints and attitude measurements only is investigated. A saturated output feedback finite-time proportional-derivative control is proposed. Lyapunov stability theory and homogeneous method are employed to show the finite-time stabilization. Advantages of the proposed control include the finite-time stabilization featuring faster transient and higher precision and the absence of the modelling information and the velocity measurements in the control law formulation, and thus, it offers an easy-going solution for high-quality motion control of spacecraft. An additive feature is that the actuator saturation will not be reached by selecting the control gains a priori. Simulations are presented to illustrate the effectiveness of the proposed control.

scholarly journals Adaptive Finite-Time Command Filtered Fault-Tolerant Control for Uncertain Spacecraft with Prescribed Performance

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Zhongtian Chen ◽  
Qiang Chen ◽  
Xiongxiong He ◽  
Mingxuan Sun
Keyword(s):  
Finite Time ◽  
Controller Design ◽  
Actuator Saturation ◽  
Fault Tolerant ◽  
External Disturbance ◽  
Fault Tolerant Control ◽  
Prescribed Performance ◽  
Attitude Stabilization ◽  
Virtual Control ◽  
System Output

In this paper, an adaptive finite-time fault-tolerant control scheme is proposed for the attitude stabilization of rigid spacecrafts. A first-order command filter is presented at the second step of the backstepping design to approximate the derivative of the virtual control, such that the singularity problem caused by the differentiation of the virtual control is avoided. Then, an adaptive fuzzy finite-time backstepping controller is developed to achieve the finite-time attitude stabilization subject to inertia uncertainty, external disturbance, actuator saturation, and faults. Through using an error transformation, the prescribed performance boundary is incorporated into the controller design to guarantee the prescribed performance of the system output. Numerical simulations demonstrate the effectiveness of the proposed scheme.

Attitude Stabilization for Bending and Stretching Movement by Using Tiptoe of a One-legged Robot

2013 ◽  
Vol 133 (3) ◽  
pp. 663-671
Author(s):  
Hiroshi Hirata ◽  
Yorinao Mizushima ◽  
Shigeto Ouchi ◽  
Nariyuki Kodani
Keyword(s):  
Legged Robot ◽  
Attitude Stabilization
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