A comparative study between two nonlinear control techniques for induction motor drives

In this paper a comparison is made between two nonlinear control techniques for induction motors, namely Lyapunov-integral control and conventional direct vector control. The latter uses nonlinear state feedback in an "ad-hoc" manner while the former systematically derives the nonlinear feedback laws to ensure that the output-tracking errors are zero. The comparison has been done studying their differences analytically and testing the two controllers in the same conditions. Simulation and experimental results show that Lyapunov-integral and traditional vector controllers can be applied in discrete time with low sampling frequency (2 kHz), obtaining approximately the same performance.

[1]  Riccardo Marino,et al.  On-line rotor resistance estimation for induction motors , 1994, Proceedings of IECON'94 - 20th Annual Conference of IEEE Industrial Electronics.

[2]  S.R. Sanders,et al.  Lyapunov-based control for switched power converters , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[3]  Riccardo Marino,et al.  Global adaptive output feedback control of induction motors with uncertain rotor resistance , 1999, IEEE Trans. Autom. Control..

[4]  D.G. Taylor,et al.  Nonlinear control of electric machines: an overview , 1994, IEEE Control Systems.

[5]  Jean-Michel Dion,et al.  Applied nonlinear control of an induction motor using digital signal processing , 1994, IEEE Trans. Control. Syst. Technol..

[6]  R. Marino,et al.  Adaptive input-output linearizing control of induction motors , 1993, IEEE Trans. Autom. Control..

[7]  Riccardo Marino,et al.  Output feedback control of current-fed induction motors with unknown rotor resistance , 1996, IEEE Trans. Control. Syst. Technol..

[8]  M. Bodson,et al.  High-performance induction motor control via input-output linearization , 1994, IEEE Control Systems.