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Implementation of Modified MRAC to Drives Control
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| Author(s) |
P. Crnošija; Z. Ban |
| Abstract |
Model reference adaptive control and self-tuning controller are the most frequently used adaptive
methods. Model reference adaptive control with parameter adaptation and self-tuning controller need
more iteration for optimal tuning of controller parameters and new tuning of controller parameters for
changed plant parameters. The main advantage of a model reference adaptive control scheme with signal
adaptation is that it acts optimally in the first change of reference and disturbance value and that it does
not need new tuning for changed plant parameters. The implementation of reference model and signal
adaptation algorithm for adaptive control of electrical drives is discussed. The basic structure of an
MRAC with signal adaptation algorithm is described. The modified structure of a signal adaptation
mechanism with adjustable reference model of a plant and/or adjustable observer, which eliminates high
frequency oscillation from the plant is described. An MRAC with a modified signal adaptation algorithm
has been implemented on a dc motor drive. The presented oscillograms show that the influence of
parameter variation and load torque can be quickly and significantly reduced by using the plant reference
model and modified signal adaptation algorithm. |
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| Filename: | EPE2001 - PP01274 - Crnosija.pdf |
| Filesize: | 206 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-11 by System |
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