대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2003년도 하계학술대회 논문집 B
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- Pages.1111-1113
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- 2003
벡터제어 유도전동기의 자기동조 퍼지 속도제어 기법
A Self-Tuning Fuzzy Speed Control Method for an Induction Motor
- Kim, Dong-Shin (Chonbuk National University) ;
- Han, Woo-Yong (Chonbuk National University) ;
- Lee, Chang-Goo (Jenju Technical) ;
- Kim, Sung-Joong (Jenju Technical)
- 발행 : 2003.07.21
초록
This paper proposes an effective self-turning algorithm based on Artificial Neural Network (ANN) for fuzzy speed control of the indirect vector controlled induction motor. Indirect vector control method divides and controls stator current by the flux and the torque producing current so that the dynamic characteristic of induction motor may be superior. However, if motor parameter changes, the flux current and the torque producing one's coupling happens and deteriorates the dynamic characteristic. The fuzzy speed controller of an induction motor has the robustness over the effect of this parameter variation than a conventional PI speed controller in some degree. This paper improves its adaptability by adding the self-tuning mechanism to the fuzzy controller. For tracking the speed command, its membership functions are adjusted using ANN adaptation mechanism. This adaptability could be embodied by moving the center positions of the membership functions. Proposed self-tuning method has wide adaptability than existent fuzzy controller or PI controller and is proved robust about parameter variation through Matlab/Simulink simulation.
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