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Abstract:
If the
model of the controlled system is poorly known, an approximate one,
based on experimental data at specified frequencies, is developed and is
defined as a limited frequency response series model. Using this model,
an amplitude and phase adjusting controller in frequency domain (APACFD)
algorithm is developed to improve the tracking accuracy. The simulation
result shows that algorithm is very effective in tracking the contour,
which has no sharp corners, even if the exact model of the controlled
system is unknown.
Key words:
Tracking
control Approximate model Feedforward control
CLC No: TM383
Received
20000522, received in revised form 20010122
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