Open Access
Globally stabilizing saturated attitude control in the presence of bounded unknown disturbances
Robert James Wallsgrove,Maruthi R. Akella +1 more
- Vol. 119, pp 1317-1330
TLDR
In this article, a smooth attitude-stabilizing control law is derived from which known limits on the control authority of the system are rigorously enforced, and unknown disturbance torques, assumed to be of lesser magnitude than the control limits, are included in the formulation.Abstract:
A smooth attitude-stabilizing control law is derived from which known limits on the control authority of the system are rigorously enforced. Unknown disturbance torques, assumed to be of lesser magnitude than the control limits, are included in the formulation. A smooth control signal containing hyperbolic tangent functions that rigorously obeys a known maximum-torque constraint is introduced. The controller can be viewed as a smooth analog of the variable-structure approach, with the degree of sharpness of the control permitted to vary with time according to a set of user-defined parameters. Lyapunov analysis is employed to ensure global stability, and asymptotic convergence of the angular velocity is guaranteed via the Barbalat lemma. Attitude errors, expressed as Euler parameters, are shown via simulation to vanish whenever certain design parameters are selected appropriately, and guidelines for selection of those parameters are provided in depth.read more
Citations
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Journal ArticleDOI
Indirect Robust Adaptive Fault -Tolerant Control for Attitude Tracking of Spacecraft
TL;DR: In this article, an indirect (nonregressor-based) approach to attitude tracking control of spacecraft is presented, which is shown to be robust against external disturbances and adaptive to unknown and time-varying mass/inertia properties.
Journal ArticleDOI
Fixed-Time Attitude Control for Rigid Spacecraft With Actuator Saturation and Faults
TL;DR: This brief investigates the finite-time control problem associated with attitude stabilization of a rigid spacecraft subject to external disturbance, actuator faults, and input saturation and develops a novel fixed-time sliding mode surface, and the settling time of the defined surface is shown to be independent of the initial conditions of the system.
Journal ArticleDOI
Adaptive Sliding Mode Control for Attitude Stabilization With Actuator Saturation
TL;DR: No prior knowledge of inertia moment is required for both of the proposed adaptive control laws, which implies that the designed control schemes can be applied in spacecraft systems with a large parametric uncertainty existing in inertial matrix or even in unknown inertial Matrix.
Journal ArticleDOI
Coordinated and Reconfigurable Vehicle Dynamics Control
Junmin Wang,Raul G. Longoria +1 more
TL;DR: Comparison with several other vehicle control system approaches shows how the system operational envelope for CRVDC is significantly expanded in terms of vehicle global trajectory and planar motion responses.
Journal ArticleDOI
Adaptive Fault-Tolerant Attitude Tracking Control of Spacecraft With Prescribed Performance
Qinglei Hu,Xiaodong Shao,Lei Guo +2 more
TL;DR: In this paper, an adaptive fault-tolerant controller is derived by incorporating backstepping control, the barrier Lyapunov function, and Nussbaum gains, which is able to guarantee the satisfaction of the prespecified constraints on the transformed errors, as well as the boundedness of all other closed-loop signals, without resorting to a judicious selection of the control parameters.
References
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Book
Nonlinear Control Systems
Alberto Isidori,M. Thoma,Eduardo D. Sontag,B. W. Dickinson,A. Fettweis,J. L. Massey,J. W. Modestino +6 more
TL;DR: In this paper, a systematic feedback design theory for solving the problems of asymptotic tracking and disturbance rejection for linear distributed parameter systems is presented, which is intended to support the development of flight controllers for increasing the high angle of attack or high agility capabilities of existing and future generations of aircraft.
Book
Vehicle dynamics and control
TL;DR: In this paper, the authors present a mean value model of SI and Diesel engines, and design and analysis of passive and active automotive suspension components, as well as semi-active and active suspensions.
Journal ArticleDOI
A family of embedded Runge-Kutta formulae
J. R. Dormand,P.J. Prince +1 more
TL;DR: In this article, a family of embedded Runge-Kutta formulae RK5 (4) are derived from these and a small principal truncation term in the fifth order and extended regions of absolute stability.
Book
Space Vehicle Dynamics and Control
TL;DR: Space Vehicle Dynamics and Control, Second Edition as discussed by the authors provides a solid foundation in dynamic modeling, analysis, and control of space vehicles featuring detailed sections covering the fundamentals of controlling orbital, attitude, and structural motions.
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