Tracking control of thrust active magnetic bearing system via Hermite polynomial-based recurrent neural network

NCUIR > College of Electrical Engineering & Computer Science > Department of Electrical Engineering > journal & Dissertation > Item 987654321/52006

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52006

Title:	Tracking control of thrust active magnetic bearing system via Hermite polynomial-based recurrent neural network
Authors:	Lin,FJ;Chen,SY;Huang,MS
Contributors:	電機工程學系
Keywords:	FEEDBACK LINEARIZATION;PERMANENT-MAGNET;SLIDING MODE;MOTOR DRIVE;DESIGN;PUMP
Date:	2010
Issue Date:	2012-03-28 10:13:07 (UTC+8)
Publisher:	國立中央大學
Abstract:	A Hermite polynomial-based recurrent neural network (HPBRNN) is proposed to control the rotor position on the axial direction of a thrust active magnetic bearing (TAMB) system for the tracking of various reference trajectories in this study. First, the operating principles and dynamic model of the TAMB system using the non-linear electromagnetic force model is derived. Then, the HPBRNN is developed for the TAMB system with enhanced control performance and robustness. In the proposed HPBRNN, each hidden neuron employs a different orthonormal Hermite polynomial basis function (OHPBF) as an activation function. Therefore the learning ability of the HPBRNN is effective with high convergence precision and fast convergence time. Moreover, the connective weights of the HPBRNN using the supervised gradient descent method are updated online and the convergence analysis of the tracking error using the discrete-type Lyapunov function is provided. Finally, some experimental results of various reference trajectories tracking show that the control performance of the HPBRNN is significantly improved compared to the conventional proportional-integral-derivative and recurrent neural network controllers and demonstrate the validity of the proposed HPBRNN for practical applications.
Relation:	IET ELECTRIC POWER APPLICATIONS
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	341	View/Open

社群 sharing

Loading...