Robustness analysis of nonlinear systems - application to induction motor
Abstract
This paper is dedicated to stability analysis of a position control loop based on an induction motor with flux oriented control in the general framework of mu-analysis. The pertinence of using this methodology is discussed in the general case of a smooth nonlinear system when the equilibrium point varies slowly. A new linear fractional representation of the model is presented with low repetition indexes of the parameters. Several algorithms are used for evaluating mu bounds, allowing to compare them in term of accuracy and computation time.
