title: DSP-based adaptive backstepping using the tracking errors for high-performance sensorless speed control of induction motor drive.
abstract: This paper presents a modified structure of the backstepping nonlinear control of the induction motor (IM) fitted with an adaptive backstepping speed observer. The control design is based on the backstepping technique complemented by the introduction of integral tracking errors action to improve its robustness. Unlike other research performed on backstepping control with integral action, the control law developed in this paper does not propose the increase of the number of system state so as not increase the complexity of differential equations resolution. The digital simulation and experimental results show the effectiveness of the proposed control compared to the conventional PI control. The results analysis shows the characteristic robustness of the adaptive control to disturbances of the load, the speed variation and low speed.
authors.affiliation: Unit C3S, Higher National Engineering School of Tunis (ENSIT), University of Tunis, 5 Av. Taha Hussein, 5 BP 56, 1008 Tunis, Tunisia.
authors.forename: Abderrahmen
authors.initials: A
authors.lastname: Zaafouri
authors.affiliation: Unit C3S, Higher National Engineering School of Tunis (ENSIT), University of Tunis, 5 Av. Taha Hussein, 5 BP 56, 1008 Tunis, Tunisia. Electronic address: chiheb_ben_regaya@yahoo.fr.
authors.forename: Chiheb Ben
authors.initials: CB
authors.lastname: Regaya
authors.affiliation: Unit C3S, Higher National Engineering School of Tunis (ENSIT), University of Tunis, 5 Av. Taha Hussein, 5 BP 56, 1008 Tunis, Tunisia.
authors.forename: Hechmi Ben
authors.initials: HB
authors.lastname: Azza
authors.affiliation: Unit C3S, Higher National Engineering School of Tunis (ENSIT), University of Tunis, 5 Av. Taha Hussein, 5 BP 56, 1008 Tunis, Tunisia.
authors.forename: Abdelkader
authors.initials: A
authors.lastname: Châari
keywords: Adaptive observer; Backstepping; Digital signal processor (DSP); Induction motor (IM); PI control; Pulse width modulation (SVPWM); Sensorless control; Space vector; Vector control; dSpace DS1104