Title :
Parameter sensitivity and inverse Nyquist method
Author_Institution :
University of Manchester Institute of Science & Technology, Control Systems Centre, Manchester, UK
fDate :
6/1/1971 12:00:00 AM
Abstract :
The equations relating perturbations of the open-loop transfer-function matrix of a multivariable linear system to those of the closed-loop transfer-function matrix and its inverse are obtained in a new and straight-forward manner. Finite and infinitesimal changes are treated with equal facility, and the condition for feedback to improve sensitivity is adapted to the inverse Nyquist method. A simple example is presented.
Keywords :
Nyquist diagrams; feedback; linear systems; multivariable systems; sensitivity; closed loop system; control system design; feedback conditions; finite changes; infinitesimal changes; inverse Nyquist method; linear multivariable control system; open loop transfer function matrix; perturbations relation; sensitivity improvement;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1971.0156
