Title :
Relative Position Control Based on H8 Robust Control for Spacecraft Rendezvous Final Approach
Author :
Shan, Gao ; Yanhua, Han
Author_Institution :
Coll. of Astronaut., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
In this paper, relative position control problem in rendezvous and docking (RVD) is studied. Based on CW equations, its state-space form is deduced and a state feedback robust controller is designed by using H∞ control theory for this problem. Considering spacecraft thruster engines, PWPF modulator is used to modulate continuous signals to pulse sequence to adapt to practical situation. Simulation of closed-loop system is undertaken with disturbance added in. Result shows the controller is robust and feasible for spacecraft RVD.
Keywords :
H∞ control; aircraft control; closed loop systems; control system synthesis; position control; robust control; state feedback; CW equations; H∞ robust control; PWPF modulator; closed-loop system; relative position control problem; rendezvous-docking problem; spacecraft rendezvous final approach; spacecraft thruster engines; state feedback robust controller design; state-space form; Control theory; Equations; Mathematical model; Modulation; Orbits; Space vehicles; State feedback; CW equation; H∞; PWPF modulation; Rendezvous and Docking; Spacecraft; control;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.528
