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Neural network-based compensation control of robot manipulators with unknown dynamics

  • Ren Xuemei*
  • , A. B. Rad
  • , Frank L. Lewis
  • *此作品的通讯作者
  • Hong Kong Polytechnic University
  • IEEE
  • University of Texas at Arlington

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A neural network (NN)-based compensation control is proposed for the trajectory tracking of robotic manipulators with unknown dynamics. This compensation controller includes a PD feedback controller, a nonlinear feedback controller and a neural network compensator with input modification. The PD controller and the nonlinear feedback controller are used to ensure the stability of the robot system, while the neural network is employed to provide the required feedforward compensation input torque for the trajectory tracking. The inputs of the neural network are modified by the reference tracking error and the network derivatives in order to further improve the control performance. The theoretical result concerning the tracking error asymptotically convergent to a neighborhood of zero is given. In addition, a NN-based robust compensation controller is proposed, using a slide mode control in the control law, which leads to asymptotic stability of the tracking errors. Simulation studies have been carried out to verify the effectiveness of the approaches and show the feasibility of the proposed schemes on a two-link manipulator.

源语言英语
主期刊名Proceedings of the 2007 American Control Conference, ACC
出版商Institute of Electrical and Electronics Engineers Inc.
13-18
页数6
ISBN(印刷版)1424409888, 9781424409884
DOI
出版状态已出版 - 2007
活动2007 American Control Conference, ACC 2007 - New York, NY, 美国
期限: 9 7月 200713 7月 2007

丛书

姓名Proceedings of the American Control Conference
ISSN(印刷版)0743-1619

会议

会议2007 American Control Conference, ACC 2007
国家/地区美国
New York, NY
时期9/07/0713/07/07

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