By Topic

A free-model based controller design and its application to power system stabilization

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

5 Author(s)
Lee, K.Y. ; Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA ; Hee-Sang Ko ; Ho-Chan Kim ; Jin-Ho Lee
more authors

This paper presents the free model approach for a closed-loop system identification using input and output data and its application to design a power system stabilizer (PSS). The free model concept is introduced as an alternative intelligent system technique to design a controller for an unknown dynamic system with input and output data only, and it does not require the knowledge of mathematical model for the system. In the free model, the data used has incremental forms using backward difference operators. A linear transformation is introduced to convert the free model into a linear model so that the linear quadratic regulator (LQR) design method can be applied. The feasibility of the proposed method is demonstrated in a three-machine nine-bus power system. The LQR method is applied to the free model to design a PSS for the system, and compared with the conventional PSS and LQR controller based on the ARMA-model. The free-model based PSS is robust in different loading conditions and system failures

Published in:

American Control Conference, 2001. Proceedings of the 2001  (Volume:2 )

Date of Conference: