Continuous-discrete time observer for a class of state affine nonlinear systems: application to an induction motor

Omar Hernandez Gonzalez (1, 2) , Tomas Menard (1) , Mondher Farza (1) , Carlos Manuel Astorga Zaragoza (2) , Gerardo Vicente Guerrero Ramirez (2)

1 Equipe Automatique - Laboratoire GREYC - UMR6072
2 CENIDET - Centro Nacional de Investigación y Desarrollo Tecnológico [Mexico]

The present work proposes a new approach for observer design for a general class of state affine nonlinear systems with discrete-time measurements. A new high gain observer design is developed and analyzed under insightful conditions. This result is achieved by considering a persistent excitation condition that can be validated on-line. The algorithm is applied to an induction motor and validated with simulations.

Domaines: Automatique / Robotique

Omar Hernandez Gonzalez, Tomas Menard, Mondher Farza, Carlos Manuel Astorga Zaragoza, Gerardo Vicente Guerrero Ramirez. Continuous-discrete time observer for a class of state affine nonlinear systems: application to an induction motor. International Journal on Sciences and Techniques of Automatic control & computer engineering, 2016, 10 (1), pp.2072-2078. ⟨hal-01497172⟩