Nano Science and Technology Institute
Nanotech 2003 Vol. 2
Nanotech 2003 Vol. 2
Technical Proceedings of the 2003 Nanotechnology Conference and Trade Show, Volume 2
Chapter 12: Computational Methods and Numerics

A Neural-Network-Based-Method on Speed Control of Ultrasonic Motors

Authors:Y.C. Liang, X.H. Shi, H.P. Lee, W.Z. Lin, X. Xu, S.P. Lim and K.H. Lee
Affilation:Jilin University, CN
Pages:546 - 549
Keywords:Elman neural network, recurrent back propagation, ultrasonic motor, control
Abstract:An improved Elman network models, output-input feedback (OIF) Elman networks is proposed based on the modified Elman network. A neural-network-based iteration control system (NNICS)) is developed by using the OIF Elman network as a passageway of the error back-propagation. The speed of the ultrasonic motor is identified using the modified Elman network and OIF Elman networks, respectively and some useful comparable results are presented. Numerical results show that the NNICS controller is effective for various kinds of reference speeds of the USM and the proposed scheme is fairly robust against random disturbance to the control variable.
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