Design and implementation of attitude control algorithm of a satellite on a three-axis gimbal simulator

Abstract

In this paper, a simple and low-cost three-axis gimbal simulator is introduced. This simulator has been constructed in Amirkabir University of Technology and is used for implementation of attitude control algorithms of remote-sensing satellites in a real time condition using three reaction wheels as hardware in the loop test-bed. This simulator is modeled in Solidworks software package to determine its mass properties in order to utilize in obtaining the dynamic model of the simulator. Afterward, an attitude control algorithm is designed. Performance of the designed attitude control algorithm is investigated by implementing it on the simulator.

Modelling, design and experimental implementation of non-linear attitude tracking with disturbance compensation using adaptive-sliding control based on quaternion algebra

“…The desired attitude (Euler angles) and control algorithms are developed in personal computer (the same as in Ref. 14). Sensor data are imported and control effort signals are transferred by using serial ports.…”

“…By using this property, to stabilise q i about zero, and in other words, to satisfy the control objective, the scalar part of q A must be negative (w q A < 0). From Equations (14) and (15), the following equations will be obtained:…”

“…In order to validate the designed controller performance, the control plant is modelled and simulated dynamically in ADAMS software which is running in a separate environment from the software in which the designed control law is applied and run simultaneously (Matlab/Simulink). The control plant in the validation procedure is a dumbbell shape simulator which is used to attitude determination and control tests frequently (14) . Since the controlling actuators in control design are reaction wheel, three reaction wheels are modelled on the dumbbell shape attitude determination and control system simulator.…”

“…The AUT attitude simulator is of the dumbbell shape ground simulators which initially developed in 2010. This attitude simulator has been used for one or two axes manoeuvres in some previous studies (14) in which simulator components and technical specifications are widely discussed. The AUT simulator performance was not ideal and it was faced with some important defects such as, third axis malfunction, low accuracy for regulation in the other two axes, lack of accurate time varying tracking, torque control (which causes an inner control loop to provide required voltage from calculated control effort), and lack of reaction wheels velocity feedback for use in the control algorithm.…”

Observation satellite attitude estimation using sensor measurement and image registration fusion

“…With the improvement of the remote sensing image resolution, the attitude determination and control system (ADCS) in observation satellites is demanded for the capability of higher pointing stability and accuracy. 16 It is extremely difficult for the small satellites to meet the requirement due to many limitations, e.g. volume, mass, low cost, and vulnerable mechanical properties.…”