By Topic

Design of decentralized PI control systems based on Nyquist stability analysis

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)
Dan Chen ; Dept. of Chem. Eng., California Univ., Santa Barbara, CA, USA ; Seborg, D.E.

Presents a simple but effective design method for decentralized PI control systems with guaranteed closed-loop stability. Nyquist stability conditions are analyzed for decentralized control systems. Formulas are derived that express the stability region for each PI controller in terms of the controller parameters. A detuning factor for each loop is specified based on a diagonal dominance index. Then appropriate controller settings are determined using this index and the stability region. Simulation results for a variety of 2 × 2 and 4 × 4 systems demonstrate that the proposed design method guarantees closed-loop stability and provides good set-point and load responses

Published in:

Control Applications, 2001. (CCA '01). Proceedings of the 2001 IEEE International Conference on

Date of Conference:

2001