Study of phase/frequency-locked servo system by fuzzy control technique

G. C. Hsieh, H. M. Lee, L. R. Chen, Y. J. Penth

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A novel fuzzy pulse pump controller (FPPC) is proposed to achieve a fuzzy-control-based phase/frequency-locked servo system (FC-PFLS). Three sets of membership functions are constructed according to the locking performance indexes, position error, discrete time change of position error, and the output crisp value. A set of fuzzy rules is built in the fuzzy-logic controller (FLC) to process the detected position error and provide a suitable pump voltage for the motor drives. The FPPC can fuzzically provide the motion profiles, such as acceleration, constant, and deceleration for the motor in a fast response without overshoot and with nearly zero steady-state error. The physical model and the linearized model of the presented FC-PFLS are built. A design example of realizing an X-Y mode FC-PFLS is constructed. The experiments of the FC-PFLS comparing with DPPLS and SPSCS are conducted. In comparison with the DPPLS, the acquisition times of the presented FC-PFLS for the short, middle and long distance servos are improved by 30%, 53% and 57%, respectively. For the SPSCS, the acquisition times are improved by 30%, 14%, and the same, respectively.

Original languageEnglish
Pages (from-to)1323-1328
Number of pages6
JournalProceedings of the IEEE International Conference on Systems, Man and Cybernetics
Volume2
Publication statusPublished - 1997 Dec 1

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Servomechanisms
Fuzzy control
Pumps
Controllers
Servomotors
Deceleration
Fuzzy rules
Membership functions
Fuzzy logic
Electric potential
Experiments

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Hardware and Architecture

Cite this

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Study of phase/frequency-locked servo system by fuzzy control technique. / Hsieh, G. C.; Lee, H. M.; Chen, L. R.; Penth, Y. J.

In: Proceedings of the IEEE International Conference on Systems, Man and Cybernetics, Vol. 2, 01.12.1997, p. 1323-1328.

Research output: Contribution to journalArticle

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