Sensorless linear induction motor speed tracking using fuzzy observers
學年 99
學期 1
出版(發表)日期 2010-11-01
作品名稱 Sensorless linear induction motor speed tracking using fuzzy observers
著者 Liu, P.; Hung, C.-Y.; Chiu, C.-S.; Lian, K.-Y.
單位 淡江大學電機工程學系
出版者 Stevenage: The Institution of Engineering and Technology
著錄名稱、卷期、頁數 IET Electric Power Applications 5(4), pp.325-334
摘要 In this study, the authors develop a sensorless speed controller for linear induction motors (LIMs) based on a fuzzy observer. The authors use a fifth-order non-linear LIM dynamical model with end-effects approximated by Taylor series. Then, the authors represent the LIM by a T-S fuzzy model and construct a fuzzy observer to estimate the immeasurable mover speed and secondary flux states. By computationally solving a set of linear matrix inequalities to obtain the observer gains, the authors achieve exponential convergence of estimation errors when fuzzy membership functions fit a Lipshitz-like property. Based on the fuzzy observer, the control law synthesis is carried out by using a virtual desired variable concept where a skew-symmetric property is utilised. The exponential convergence for both estimation error and tracking error is ensured by the controller design. Finally, speed tracking experiments are carried out to verify the theoretical results and show satisfactory performance.
語言 en
ISSN 1751-8660 1751-8679
期刊性質 國外
收錄於 SCI
通訊作者 Liu, P.
國別 GBR
出版型式 紙本 電子版

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