National Taiwan Ocean University Institutional Repository:Item 987654321/46980
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题名: Control of an omnidirectional spherical mobile robot using an adaptive Mamdani-type fuzzy control strategy
作者: Chih-Hui Chiu
Chieh-Min Lin
贡献者: 國立臺灣海洋大學:通訊科學系
关键词: Lyapunov function
Mamdani-type fuzzy controller
Omnidirectional spherical mobile robot
Compensated control
Supervisory controller
日期: 2016
上传时间: 2018-06-25T03:51:41Z
出版者: Neural Computing and Applications
摘要: Abstract: In this study, a supervisory control system with an adaptive Mamdani-type fuzzy controller (AMFC) is used to control an omnidirectional spherical mobile robot (ODSMR). The system combines an adaptive Mamdani-type fuzzy controller and a supervisory controller for ODSMRs with unknown external disturbances. Tracking is provided by a Mamdani-type fuzzy controller that approximates a theoretically exact control law, and a separate controller is used to cancel the residual of the approximation error. The control law is derived using Lyapunov stability theory to ensure the stability of the closed-loop system. Many external factors can cause the system to become unstable, so a supervisory controller is included. A decoupled control approach provides a simple method to achieve asymptotic stability for a fourth-order nonlinear system. The main concept of this approach is to decouple the system into two subsystems. Then, the primary subsystem combines the information provided by the secondary subsystem to generate a control that drives both subsystems to their desired states. This platform can move in any direction with no constraints. The efficiency of the proposed controller is verified with tests on an actual robot. The contributions of this study are: (1) the implementation of an ODSMR and (2) the application of the proposed AMFC with a supervisory control system to real-time control of the ODSMR.
關聯: pp1–13
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46980
显示于类别:[通訊與導航工程學系] 期刊論文

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