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Robust control with stable proportional-integral-plus controllers | IEEE Conference Publication | IEEE Xplore

Robust control with stable proportional-integral-plus controllers


Abstract:

This paper considers robust control with a stable controller using proportional-integral-plus control techniques. A formulation of robust PIP controllers is proposed on t...Show More

Abstract:

This paper considers robust control with a stable controller using proportional-integral-plus control techniques. A formulation of robust PIP controllers is proposed on the basis of parametric pole assignment. The robustness function in the frequency domain is minimised using the freedom provided by parametric pole assignment. It shows how to combine time-domain performance specifications provided by pole assignment and robust performance specifications in the frequency domain considered by H°° control to realise joint optimum robustness. This paper also builds upon the existing PIP design philosophy, introducing a design step which stabilises the PIP controller. This design strategy not only stabilises the controller, but also ensures that the equivalent closed-loop transfer function of the system remains identical to that of the original PIP closed-loop system.
Date of Conference: 04-07 September 2001
Date Added to IEEE Xplore: 27 April 2015
Print ISBN:978-3-9524173-6-2
Conference Location: Porto, Portugal