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Genetic algorithm application to controller optimization problems with non-analytic solutions

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2 Author(s)
Hull, R.A. ; Inst. for Simulation & Training, Univ. of Central Florida, Orlando, FL, USA ; Johhnson, R.W.

Genetic algorithms (GAs) offer a numerical search method which does not require a statement of the mathematical relationship between the performance criteria and the parameter update rule. The objective of this study is to demonstrate that GAs provide a method of optimizing control system problems with analytically intractable constraints. A linear missile airframe and actuator state space model is developed, and a reduced order linear feedback controller is implemented. A genetic algorithm is constructed to optimize the controller parameters, first with respect to a weighted linear quadratic performance index. Penalty functions are then developed to introduce performance constraints on the maximum rise time, allowable settling error, and peak actuator effort.

Published in:

Southcon/94. Conference Record

Date of Conference:

29-31 March 1994