Optimal control design that accounts for model mismatch errors

Conference · Wed Feb 01 00:00:00 EST 1995

OSTI ID:10193681

Kim, T J ^[1]; Hull, D G ^[2]

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1. Sandia National Labs., Albuquerque, NM (United States)
2. Texas Univ., Austin, TX (United States). Dept. of Aerospace Engineering and Engineering Mechanics

A new technique is presented in this paper that reduces the complexity of state differential equations while accounting for modeling assumptions. The mismatch controls are defined as the differences between the model equations and the true state equations. The performance index of the optimal control problem is formulated with a set of tuning parameters that are user-selected to tune the control solution in order to achieve the best results. Computer simulations demonstrate that the tuned control law outperforms the untuned controller and produces results that are comparable to a numerically-determined, piecewise-linear optimal controller.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 10193681
• Report Number(s): SAND-94-2402C; CONF-950248-1; ON: DE95002605; BR: GB0103012
• Resource Relation: Conference: American Aeronautics Society/American Institute of Aeronautics and Astronautics Space flight mechanics meeting,Albuquerque, NM (United States),13-15 Feb 1995; Other Information: PBD: [1924]
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
CONTROL THEORY
DIFFERENTIAL EQUATIONS
COMPUTERIZED SIMULATION
BOUNDARY-VALUE PROBLEMS
420200
990200
FACILITIES, EQUIPMENT, AND TECHNIQUES
MATHEMATICS AND COMPUTERS