Improvement of practical control method for positioning systems in the presence of actuator saturation by incorporating fuzzy anti-reset windup
The positioning systems generally need a good controller to achieve high accuracy, fast response and robustness. In addition, ease of controller design and simplicity of controller structure are very important for practical application. For satisfying these requirements, NCTF (nominal character...
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| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2004
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/7876/1/A22.pdf http://irep.iium.edu.my/7876/ |
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| Summary: | The positioning systems generally need a good controller to
achieve high accuracy, fast response and robustness. In
addition, ease of controller design and simplicity of
controller structure are very important for practical
application. For satisfying these requirements, NCTF
(nominal characteristic trajectory following controller) has
been proposed as a practical PTP positioning control.
However, the effect of actuator saturation can not be
completely compensated due to integrator windup when the
object parameters vary. This paper presents a method to
improve the NCTF controller for overcoming the problem of
integrator windup by adopting a fuzzy anti-windup. The
improved NCTF controller is evaluated through simulation
using a rotary positioning system. The results show that the
improved NCTF controller is effective to compensate the
effect of integrator windup. |
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