Title :
A TVC based nonlinear rocket controller for contour following
Author :
Yeh, Fu-Kuang ; Chien, Hsiuan-Hau ; Fu, Li-Chen ; Fu, Ho-Ling
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
This paper presents a nonlinear controller for rockets with thrust-vector-control (TVC) to perform the contour-following task given a predefined trajectory. A guidance law is designed to produce the “sliding velocity” for the rocket in real-time such that the relative motion between the rocket and the trajectory is minimized. An autopilot system is designed not only to stabilize the rocket but also to realize the guidance law. In order to establish a complete system model, besides the rocket motion dynamics, we also take into account the propellant effort of movable nozzle TVC (MNTVC), aerodynamic influence, the earth´s gravitational field and the earth´s revolution. Both sliding mode control and nonlinear system analysis theory are employed to design stable control system. Stability and performance of the contour-following control is demonstrated by simulation
Keywords :
aerospace control; control system synthesis; minimisation; nonlinear control systems; real-time systems; rockets; space vehicles; stability; variable structure systems; Earth revolution; MNTVC; TVC based nonlinear rocket controller; aerodynamic influence; contour following; gravitational field; guidance law; movable nozzle TVC; nonlinear system analysis theory; propellant effort; real-time control; sliding mode control; sliding velocity; stable control system design; thrust-vector-control; Aerodynamics; Control systems; Earth; Nonlinear control systems; Nonlinear dynamical systems; Nonlinear systems; Propulsion; Rockets; Sliding mode control; Stability;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.876722