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http://dx.doi.org/10.13067/JKIECS.2012.7.4.839

Robust Disturbance Suppression Control for AC Servo Motors  

Kim, Chang-Hwan (대전대학교 IT전자공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.7, no.4, 2012 , pp. 839-848 More about this Journal
Abstract
In this paper, we propose a robust control scheme of AC servo motors to suppress disturbance torques effectively. The proposed controller consists of both a model based feed-forward controller and a stabilizing feedback controller. The feed-forward controller is designed such that the output of the nominal plant tracks perfectly the reference velocity command with desired dynamic characteristics. The feedback controller stabilizes the overall closed loop system. Furthermore, the feedback controller contains a free function that can be chosen arbitrarily. The free function can be designed so as to achieve both suppression of disturbances and robustness to model uncertainties. In order to illuminate the superior performance of the proposed control scheme to the conventional ones, we present some simulation results.
Keywords
AC servo motor; robust control; free function; suppression of disturbances; model uncertainties;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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