Feedback control for slew maneuver using on-off thrusters

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A new output-feedback control approach for the single-axis rotational maneuver of a flexible structure by use of on-off thrusters is discussed. The target Structural model represents a large-space-structure type with relatively low natural frequencies. The large overshoot induced by phase error of the applied torque input is minimized by the new control law. The thruster output is modulated in pulse width so that the output profile is similar to continuously smoothed control histories. The main idea of the new controller is based on a dosed-loop switching function that is constructed from a near-minimum-time output-feedback tracking control law. The preposed control law has advantages of robustness as an output-feedback law as web as enhanced performance for the slew maneuver of flexible structures by use of on-off actuators.
Publisher
AMER INST AERONAUT ASTRONAUT
Issue Date
1999
Language
English
Article Type
Article
Keywords

TIME-OPTIMAL CONTROL; NEAR-MINIMUM-TIME; FLEXIBLE SPACECRAFT; DYNAMICS; SYSTEMS; DESIGN

Citation

JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, v.22, no.6, pp.816 - 822

ISSN
0731-5090
DOI
10.2514/2.4483
URI
http://hdl.handle.net/10203/76189
Appears in Collection
AE-Journal Papers(저널논문)
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