Robust design of a spacecraft attitude tracking control system with actuator uncertainties

2008 ◽  
Author(s):  
Aranya Chakrabortty ◽  
Murat Arcak ◽  
Panagiotis Tsiotras
Keyword(s):  
Control System ◽  
Robust Design ◽  
Tracking Control ◽  
Spacecraft Attitude ◽  
Attitude Tracking ◽  
Attitude Tracking Control

scholarly journals A Nonlinear Second-order Spacecraft Attitude Tracking Control Model for Control System Stabilization

2018 ◽  
Vol 198 ◽  
pp. 05007
Author(s):  
Xiaoyi Wang
Keyword(s):  
Control System ◽  
Attitude Control ◽  
Tracking Control ◽  
Angular Rate ◽  
Control Model ◽  
Second Order ◽  
Spacecraft Attitude ◽  
Order Model ◽  
Attitude Tracking ◽  
Attitude Tracking Control

A control model for the direct parameter approach for spacecraft attitude tracking is presented in this paper. First of all, the spacecraft attitude tracking control model is built up by the error equation of the second-order nonlinear quaternion-based attitude system. A problem of control system stabilization is raised based on the control model. Compared with other control models, the second-order can offer the advantages of noapproximation and clear control states. The basic spacecraft control model has to focus on to the two variables which are angular rate and attitude quaternion, however, the new attitude control problem is only with respect to one variable which is the spacecraft attitude quaternion. Therefore, the second-order model is simpler and clear than basic first-order model.

Adaptive fault-tolerant control for hybrid attitude tracking control system with quantized control torque and measurement

2020 ◽  
pp. 095441002095330
Author(s):  
Min Li ◽  
Yingchun Zhang ◽  
Yunhai Geng
Keyword(s):  
Control System ◽  
Tracking Control ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Actuator Faults ◽  
Control Torque ◽  
External Disturbances ◽  
Quantized Control ◽  
Attitude Tracking ◽  
Attitude Tracking Control

In this paper, the problem of fault tolerant control for spacecraft attitude tracking control system in the presence of actuator faults/failures, quantized control torque and measurement, uncertain inertial matrix and external disturbances is taken into account. The dynamical uniform quantizers are developed to quantize the signals of control torque and measurement, which can reduce the data transmission rate. In combination with the CA and FTC technique, a robust adaptive fault tolerant control scheme is proposed to cope with the effects of quantization errors in control torque and measurement, the unknown actuator faults/failures, uncertain inertial matrix and external disturbances. The developed control strategy combined with quantized control torque and measurement can guarantee the stability of overall closed-loop system and achieve satisfactory attitude tracking performance. Finally, simulation results are presented to verify the effectiveness of the proposed methods.

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