Implementation of a neural network tracking controller for a singleflexible link: comparison with PD and PID controllers
Gutierrez, L.B.; Lewis, F.L.; Lowe, J.A.
Industrial Electronics, IEEE Transactions on
Volume 45, Issue 2, Apr 1998 Page(s):307 - 318
Digital Object Identifier 10.1109/41.681230
Summary:The objective of this paper is to show the results of the
practical implementation of a neural network (NN) tracking controller on
a single flexible link and compare its performance to that of
proportional derivative (PD) and proportional integral derivative (PID)
standard controllers. The NN controller is composed of an outer PD
tracking loop, a singular perturbation inner loop for stabilization of
the fast flexible-mode dynamics, and an NN inner loop used to feedback
linearize the slow pointing dynamics. No off-line training or learning
is needed for the NN. It is shown that the tracking performance of the
NN controller is far better than that of the PD or PID standard
controllers. An extra friction term was added in the tests to
demonstrate the ability of the NN to learn unmodeled nonlinear dynamics
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