scholarly journals Model Predictive Control of three dimensional spacecraft relative motion

2012 ◽  
Author(s):  
A. Weiss ◽  
I. Kolmanovsky ◽  
M. Baldwin ◽  
R. S. Erwin
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Relative Motion ◽  
Three Dimensional

scholarly journals A Crane Overload Protection Controller for Blade Lifting Operation Based on Model Predictive Control

Energies ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 50 ◽  
Author(s):  
Zhengru Ren ◽  
Roger Skjetne ◽  
Zhen Gao
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Control Algorithm ◽  
Three Dimensional ◽  
Sensitivity Study ◽  
Multiple Shooting ◽  
Peak Tension ◽  
Overload Protection ◽  
Turbulent Wind Field ◽  
Blade Model

Lifting is a frequently used offshore operation. In this paper, a nonlinear model predictive control (NMPC) scheme is proposed to overcome the sudden peak tension and snap loads in the lifting wires caused by lifting speed changes in a wind turbine blade lifting operation. The objectives are to improve installation efficiency and ensure operational safety. A simplified three-dimensional crane-wire-blade model is adopted to design the optimal control algorithm. A crane winch servo motor is controlled by the NMPC controller. The direct multiple shooting approach is applied to solve the nonlinear programming problem. High-fidelity simulations of the lifting operations are implemented based on a turbulent wind field with the MarIn and CaSADi toolkit in MATLAB. By well-tuned weighting matrices, the NMPC controller is capable of preventing snap loads and axial peak tension, while ensuring efficient lifting operation. The performance is verified through a sensitivity study, compared with a typical PD controller.

Model Predictive Control of Spacecraft Relative Motion with Convexified Keep-Out-Zone Constraints

2018 ◽  
Vol 41 (9) ◽  
pp. 2054-2062 ◽  
Author(s):  
Costantinos Zagaris ◽  
Hyeongjun Park ◽  
Josep Virgili-Llop ◽  
Richard Zappulla ◽  
Marcello Romano ◽  
...  
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Relative Motion

Hardware implementation of Model Predictive Control for relative motion maneuvering

2015 ◽  
Author(s):  
Andrew Goodyear ◽  
Christopher Petersen ◽  
Jean Pierre ◽  
Costantinos Zagaris ◽  
Morgan Baldwin ◽  
...  
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Relative Motion ◽  
Hardware Implementation

Three-Dimensional Impact Angle Guidance Laws Based on Model Predictive Control and Sliding Mode Disturbance Observer

2016 ◽  
Vol 138 (8) ◽  
Author(s):  
Shaoming He ◽  
Wei Wang ◽  
Jiang Wang
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Disturbance Observer ◽  
Control Method ◽  
Sliding Mode ◽  
Three Dimensional ◽  
Continuous Model ◽  
Guidance System ◽  
Guidance Law ◽  
Sliding Mode Disturbance Observer

This paper presents a suboptimal three-dimensional guidance law to intercept unknown maneuvering targets with terminal angle constraint using multivariable control design. The presented guidance law is essentially a composite control method, which is constructed through a combination of standard continuous model predictive control (MPC) and adaptive multivariable sliding mode disturbance observer (SMDO). More specifically, the MPC method is utilized to obtain optimal line-of-sight (LOS) angle tracking performance for nonmaneuvering targets, while the SMDO technique is used to estimate and compensate for the unknown target maneuver online. By virtue of the adaptive nature, the proposed guidance law does not require any information on the bounds of target maneuver and its gradient except for their existence. The stability of the closed-loop guidance system is also analyzed by using Lyapunov function method. Simulation results clearly confirm the effectiveness of the proposed formulation against a maneuvering target.

Nonlinear model predictive control of spacecraft relative motion

2018 ◽  
Vol 233 (11) ◽  
pp. 3906-3919 ◽  
Author(s):  
Piotr A Felisiak ◽  
Krzysztof S Sibilski ◽  
Kaiyu Qin ◽  
Gun Li ◽  
Wiesław A Wróblewski
Keyword(s):  
Model Predictive Control ◽  
Motion Control ◽  
Predictive Control ◽  
Relative Motion ◽  
Control Algorithm ◽  
Optimization Problem ◽  
Control Method ◽  
Nonlinear Model Predictive Control ◽  
Model Predictive Control Algorithm ◽  
Control Trajectory

This investigation deals with the problem of spacecraft relative motion control, which is typically associated with the spacecraft rendezvous and proximity maneuvers. Relative position and linear velocity are considered. A distinguishing attribute of the presented approach is consideration of definitely larger relative distance between the satellites than it is commonly addressed in the literature. The presented control method is applicable in the case where the chief satellite moves in a known, highly elliptical orbit. A quasi-optimal control is found by a model predictive control algorithm, where the nonlinear optimization problem is reduced to quadratic optimization by preliminary estimation of the future control trajectory. Significance of the method has been verified using a computer simulation.

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