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Design of Single-input Direct Adaptive Fuzzy Logic Controller Based on Stable Error Dynamics
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  • Design of Single-input Direct Adaptive Fuzzy Logic Controller Based on Stable Error Dynamics
  • Design of Single-input Direct Adaptive Fuzzy Logic Controller Based on Stable Error Dynamics
저자명
Park. Byung-Jae
간행물명
International journal of fuzzy logic and intelligent systems
권/호정보
2001년|1권 1호|pp.44-49 (6 pages)
발행정보
한국지능시스템학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

For minimum phase systems, the conventional fuzzy logic controllers (FLCs) use the error and the change-of-error as fuzzy input variables. Then the control rule table is a skew symmetric type, that is, it has UNLP (Upper Negative and Lower Positive) or UPLN property. This property allowed to design a single-input FLC (SFLC) that has many advantages. But its control parameters are not automatically adjusted to the situation of the controlled plant. That is, the adaptability is still deficient. We here design a single-input direct adaptive FLC (SDAFLC). In the AFLC, some parameters of the membership functions characterizing the linguistic terms of the fuzzy rules are adjusted by an adaptive law. The SDAFLC is designed by a stable error dynamics. We prove that its closed-loop system is globally stable in the sense that all signals involved are bounded and its tracking error converges to zero asymptotically. We perform computer simulations using a nonlinear plant and compare the control performance between the SFLC and the SDAFLC.