篇名 | Nonlinear Positioning Compensator of a Novel Thin-Disc Ultrasonic Motor using Fuzzy Sliding-Mode Control |
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卷期 | 2:3 |
作者 | Chi-Yung Yen 、 Fuh-Liang Wen 、 Minsun Ouyang |
頁次 | 257-276 |
關鍵字 | ultrasonic motor 、 non-linear 、 dead-zone 、 hysteresis 、 fuzzy sliding-mode 、 robust 、 Scopus |
出刊日期 | 200412 |
An approach of controller design based on fuzzy set and sliding-mode control theory for positioning purpose of a thin-disc edge-driving ultrasonic motor (USM) is developed in this study. A commercially available thin-disc buzzer used as a novel actuating component of ultrasonic motor with simple structure has been demonstrated its cost effectiveness and advantage in flexible mechanism design of a stator and rotor separately according to the necessary of applications. The driving mechanism associated with the non-linear phenomena such as dead-zone and hysteresis behaviors were studied too. Through system identification technique, the approximated transfer function of ultrasonic motor was obtained for controller design using fuzzy sliding-mode (FSMC). It has been successfully applied to position tracking to prove the excellent robust performance in noise rejection.