We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

A discrete-time design and analysis of perturbation observer for motion control applications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
SangJoo Kwon ; Dept. of Mech. Eng., Pohang Univ. of Sci. & Technol., South Korea ; Wan Kyun Chung

A discrete perturbation observer (DPO) is suggested in state-space form for motion control applications. In existing disturbance observer design methods, the low-pass filter (so-called Q-filter) is central. However, the effect of the Q-filter on performance and robustness has not been clarified, specifically in the discrete-time domain. Considering the discrete Q-filter, with general order and inertia perturbations as a structured model uncertainty, we clarify how the performance and robustness of the perturbation observer are changed according to the variation of the Q-filter parameters and model parameter (i.e., inertia) perturbations in discrete control systems. Experimental results show the validity of the analysis and the effectiveness of the DPO.

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:11 ,  Issue: 3 )