Title :
A CAD tool for limit cycle prediction in nonlinear systems
Author :
Paoletti, Francesco ; Landi, Alberto ; Innocenti, Mario
Author_Institution :
Marconi Ind., Genova, Italy
fDate :
11/1/1996 12:00:00 AM
Abstract :
The analysis of nonlinear control systems can be greatly improved by the use of computer software. In this paper, an interactive, user-friendly, graphically oriented toolbox based on Matlab is presented. Nonlinear systems whose nonlinearity is given by a relay are considered, and stability of free and forced oscillations is analyzed using the methods by Hamel, Tsypkin and Paquet. Nonlinear control systems with polynomial nonlinearity are also treated and analyzed using Hopf´s theorem in the frequency domain. The structure of the code is described and some illustrative examples are presented to validate the software capabilities
Keywords :
computer aided instruction; control engineering education; control system CAD; control system analysis computing; frequency-domain analysis; limit cycles; nonlinear control systems; stability; teaching; CAD tool; CAI; Hopf´s theorem; Matlab; computer software; control education; control simulation; forced oscillations; free oscillations; frequency domain; limit cycle prediction; nonlinear control system design; polynomial nonlinearity; stability analysis; user-friendly; Automatic control; Control systems; Control theory; Limit-cycles; Linear systems; Nonlinear systems; Packaging; Relays; Software; Stability analysis;
Journal_Title :
Education, IEEE Transactions on
