Frequency-Spectrum-Based Antiwindup Compensator for PI-Controlled Systems
Jul-Ki Seok
Sch. of Electr. Eng., Yeungnam Univ., Kyongsan;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Dec. 2006
Volume: 53,
Issue: 6
On page(s): 1781-1790
ISSN: 0278-0046
INSPEC Accession Number: 9201848
Digital Object Identifier: 10.1109/TIE.2006.885118
Current Version Published: 2006-11-30
Abstract
This paper presents a frequency-spectrum-based conditional-integration antiwindup strategy for a general proportional-integral-type controller. The on/off condition of integral action is determined by a frequency-domain analysis of the actuator-input command without prior knowledge of set-point changes. The dynamic performance of the proposed scheme assures a desired tracking-response curve with minimal oscillation and settling time even with a change of operating conditions. This algorithm is useful in many high-performance induction-machine applications, as it does not allow the oscillation and overshoot of speed/torque responses. The main idea can be extended to general applications such as those involving chemical processes and industrial robots
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