Title :
Necessary conditions for absolute stability of nonlinear multivariable regulators
Author_Institution :
University of Salford, Department of Aeronautical & Mechanical Engineering, Salford, UK
Abstract :
Simple necessary conditions involving the fundamental frequency-domain concept of transmission zeros are established for the absolute stability of nonlinear multivariable regulators. These results significantly complement the sufficient conditions provided by the matrix Popov criterion in the analysis and synthesis of nonlinear multivariable control systems.
Keywords :
Popov criterion; multivariable control systems; nonlinear control systems; stability; absolute stability; fundamental frequency domain concept; matrix Popov criterion; nonlinear multivariable regulators; transmission zeros;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800276
