A PI/Backstepping Approach for Induction Motor Drives Robust Control

Omar Benzineb (1) , Hassen Salhi (2) , Mohamed Tadjine (3) , Mohamed Salah Boucherit (3) , Mohamed Benbouzid (1)

1 LBMS - Laboratoire brestois de mécanique et des systèmes
2 LABSET - Laboratoire des systèmes électriques et de télécommande
3 LCP - Laboratoire de Commande des Processus

This paper presents a robust control design procedure for induction motor drives in case of modeling errors and unknown load torque. The control law is based on the combination of nonlinear PI controllers and a backstepping methodology. More precisely, the controllers are determined by imposing flux-speed tracking in two steps and by using appropriate PI gains that are nonlinear functions of the system state. A comparative study between the proposed PI/Backstepping approach and the feedback linearizing control is made by realistic simulations including load torque changes, parameter variations and measurement noises. Flux-speed tracking results show the proposed method effectiveness in presence of strong disturbances.

Mots clés: Nonlinear PI control; backstepping; induction motor; robustness; flux-speed tracking; feedback linearizing control

Domaines: Energie électrique

Omar Benzineb, Hassen Salhi, Mohamed Tadjine, Mohamed Salah Boucherit, Mohamed Benbouzid. A PI/Backstepping Approach for Induction Motor Drives Robust Control. International Review of Electrical Engineering, 2010, 5 (2), pp.426-432. ⟨hal-00526614⟩