By Topic

Algorithm for PID controller tuning using LQG cost minimization

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
$33 $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)
M. J. Grimble ; Ind. Control Unit, Strathclyde Univ., Glasgow, UK ; M. A. Johnson

The optimisation of time domain cost functions to generate tuning rules has been well explored. However, there have been very few extensions of this procedure to an optimal PID trade-off from a formal time domain or frequency domain LQG or LQ cost minimisation problem. In this paper an LQG cost minimisation problem is defined and the PID controller coefficients which minimise the index are required. The advantages of the approach are that direct cost function optimisation is performed rather than simply matching a PID controller to an LQG solution. This enables the LQG underlying problem to be used more directly for the design process. A key idea is to choose the LQG cost function specification allowing for the constraints of the PID structure. The result is a PID design approach which is very closely integrated with the underlying optimisation problem. In the paper the algorithm is specified and some potential applications are explored

Published in:

American Control Conference, 1999. Proceedings of the 1999  (Volume:6 )

Date of Conference: