Fuzzy self-tuning PI control of PM synchronous motor drives

In this paper, a new gain self-tuning method for PI controllers based on a fuzzy inference mechanism has been proposed and implemented. The essential idea is: (1) define a dynamically changed reference trajectory in the error and error derivative plane, called a 'sliding trajectory'; (2) c...

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Bibliographic Details
Published in:International journal of electronics 1996-02, Vol.80 (2), p.211-221, Article 211
Main Authors: CHIRICOZZI, E., PARASILITI, F., TURSINI, M., ZHANG, D. Q.
Format: Article
Language:English
Subjects:
Applied sciences
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
Regulation and control
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Summary:In this paper, a new gain self-tuning method for PI controllers based on a fuzzy inference mechanism has been proposed and implemented. The essential idea is: (1) define a dynamically changed reference trajectory in the error and error derivative plane, called a 'sliding trajectory'; (2) compute the error area between the sliding trajectory and the e ective one with a special algorithm, and use this quantity as a performance index to evaluate the system response; (3) draw a fuzzy relationship between a PI gain correction parameter and the performance index; (4) based on the fuzzy inference mechanism, PI gains are calculated and tuned. The proposed method has been verified through simulations, using the speed control of a PM synchronous motor drive system as a testbed. The results obtained demonstrate the effectiveness of this novel method.
ISSN:0020-7217
1362-3060
DOI:10.1080/002072196137417