A novel design for induction motor flux estimation using impulsive observer

This paper considers the estimation of flux of induction motor. A novel observer named impulsive observer is designed firstly for induction motor, which is treated as a kind of linear system in this paper. The condition for existence of the impulsive observer is given by a set of linear matrix inequalities, then the asymptotic convergence of the error system is analyzed by the theory of Lyapunov. Finally, simulation is provided to show the effectiveness of the proposed observer.