Nonlinear systems (vol. 1): dynamics and control
Nonlinear systems (vol. 1): dynamics and control
On the attitude stabilization of rigid spacecraft
Automatica (Journal of IFAC)
Nonlinear systems analysis (2nd ed.)
Nonlinear systems analysis (2nd ed.)
Adaptive control of linear periodic systems
ACC'09 Proceedings of the 2009 conference on American Control Conference
Neural network based three axis satellite attitude control using only magnetic torquers
NN'05 Proceedings of the 6th WSEAS international conference on Neural networks
Automatica (Journal of IFAC)
Survey Invariant representations of discrete-time periodic systems
Automatica (Journal of IFAC)
Spacecraft attitude control using magnetic actuators
Automatica (Journal of IFAC)
International Journal of Intelligent Mechatronics and Robotics
| Hi-index | 22.15 |
This paper presents stability and control analysis of a satellite on a near polar orbit subject to the gravity torque. The satellite is actuated by a set of mutually perpendicular coils. The concept is that interaction between the Earth's magnetic field and a magnetic field generated by the coils results in a mechanical torque used for attitude corrections. Magnetic actuation due to its simplicity and power efficiency is attractive on small, inexpensive satellites. This principle is however inherently nonlinear, and difficult to use since the control torque can only be generated perpendicular to the geomagnetic field vector. This paper shows that three-axis control can be achieved with magnetorquers as sole actuators in a low Earth near polar orbit. It considers the problem from a time-varying, nonlinear system point of view and suggests controllers for three-axis stabilization. A stability analysis is presented, and detailed simulation results show convincing performance over the entire envelope of operation of the Danish Orsted satellite.