Fuzzy Hybrid Control Method Applying High-Speed Inference Method

An important feature of fuzzy control is that the improvement of transient characteristics in control performance and excellent robustness control can be realized easily. On the other hand, in PID control, the stability is guaranteed theoretically and high-accuracy control can be realized in the sta...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series C Vol. 61; no. 582; pp. 626 - 632
Main Authors Hayashi, Kenichiro, Otsubo, Akifumi, Muta, Itsuya, Hoshino, Tsutomu
Format Journal Article
LanguageJapanese
Published The Japan Society of Mechanical Engineers 1995
Subjects
Control Performance
Fuzzy Control
Fuzzy-Switching
Hybrid Control
PID Control
Simplified Indirect Method
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Summary:An important feature of fuzzy control is that the improvement of transient characteristics in control performance and excellent robustness control can be realized easily. On the other hand, in PID control, the stability is guaranteed theoretically and high-accuracy control can be realized in the static characteristics in control performance. In an effort to combine the merits of fuzzy and PID controls, a "hybrid control method" is proposed in this paper. The method proposed here is that fuzzy and PID controls are combined in parallel. In the method, changeably, fuzzy control is used in the transient characteristic area, and PID control is used in the static characteristic area. Moreover, the smoothness of control in changes is guaranteed by practicing both changes fuzzily. Also, a "simplified indirect method" which can realize high-speed inference is used as the fuzzy control method.
ISSN:0387-5024
1884-8354
DOI:10.1299/kikaic.61.626