Tracker Design Using Composite Nonlinear Feedback with Application to a DC Servomotor

سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 879

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شناسه ملی سند علمی:

PEDSTC03_076

تاریخ نمایه سازی: 25 شهریور 1392

چکیده مقاله:

In this paper, the theory of a nonlinear control technique, i.e., the composite nonlinear feedback control is considered for robust tracking of a class of linear systems with timevarying uncertain parameters and disturbances. This controller can guarantee that the tracking error decreases asymptotically to zeroin the presence of time varying uncertain parameters and disturbances. For performance improvement of dynamical system, this proposed robust tracking controller consists of linear andnonlinear feedback parts without any switching element. The linear feedback law is designed to yield a closed loop system with a smalldamping ratio for the existence of a quick response. On the other hand, the nonlinear feedback law is designed to increase thedamping ratio as the system output approaches the output of the reference model. Finally, the simulations of applying the control law on a DC servomotor positioning system are given to illustrate the validity of the results developed in this paper.

نویسندگان

Saleh Mobayen

Intelligent Control Systems Laboratory, School of Electrical and Computer Engineering, Tarbiat Modares University

Vahid Johari Majd

Intelligent Control Systems Laboratory, School of Electrical and Computer Engineering, Tarbiat Modares University,