Fuzzy Sliding Mode Speed Controller for a Vector Controlled Induction Motor

This paper presents a speed fuzzy sliding mode controller for a vector controlled induction machine (IM) fed by a voltage source inverter (PWM). The sliding mode based fuzzy control method is developed to achieve fast response, a best disturbance rejection and to maintain a good decoupling. The problem with sliding mode control is that there is high frequency switching around the sliding mode surface. The FSMC is the combination of the robustness of Sliding Mode Control (SMC) and the smoothness of Fuzzy Logic (FL). To reduce the torque fluctuations (chattering), the sign function used in the conventional SMC is substituted with a fuzzy logic algorithm. The proposed algorithm was simulated by Matlab/Simulink software and simulation results show that the performance of the control scheme is robust and the chattering problem is solved.

Authors:

• S. Massoum
• A. Bentaallah
• A. Massoum
• F. Benaimeche
• P. Wira
• A. Meroufel

Keywords:

• IM
• FOC
• FLC
• SMC
• and FSMC.

References:

[1] V. I. Utkin, "Variable structure systems with sliding modes", IEEE
Transactions on Automatic Control, vol. 22, pp. 212-221, 1977.
[2] V.I. Utkin "sliding mode control design principles and applications to
electric drives". IEEE, Trans, on IE, vol 40, 1999, pp. 23-36.
[3] A. Meroufel, A. Massoum, and P. Wira "A Fuzzy Sliding Mode
Controller for a Vector Controlled Induction Motor" Industrial
Electronics, 2008. ISIE 2008. IEEE International Symposium on
Publication: June 30 2008-July 2 2008, On page(s): 1873-1878.
[4] C.Y.Won, D.H.Kim, S.C.Kim and D.W.Yoo "New fuzzy sliding mode
controller for position control of induction motor". IEEE, Proc. Of
APEC-93, 1993, pp 115-121.
[5] E. Merabet, R. Abdessemed, H. Amimeur and F. Hamoudi, "Field
oriented control of a dual star induction machine using fuzzy
regulators," in 4th Int. Conf. Computer Integrated Manufacturing,
CIP-07, Univ. Setif, Algeria, Nov. 03-04, 2007.
[6] R. Bojoi, A. Tenconi, G. Griva and F. Profumo, "Vector control of dual
three- phase induction-motor drives two current sensors," IEEE Trans.
Ind. Appl., vol. 42, no. 5, pp. 1284-1292, Sep./Oct. 2006.
[7] R. Bojoi, M. Lazzari, F. Profumo and A. Tenconi, "Digital Field-
Oriented Control for Dual Three-Phase Induction Motor Drives", IEEE
Trans. On INDUSTRY Appl., Vol. 39, No. 3, May/June 2003, pp. 752-
760.
[8] G. K. Singh, K. Nam and S. K. Lim, "A simple indirect field-oriented
control scheme for multiphase induction machine," IEEE Trans.
Ind.Electron., vol. 52, no. 4, pp. 1177-1184, Aug. 2005.
[9] A. Hazzab, I. K. Bousserhane and M. Kamli, "Design of a fuzzy sliding
mode controller by genetic algorithms for induction machine speed
control," Int. Journal Emerging Elec. Power Syst., vol. 1, iss. 2, art.
1008, pp. 1-17, 2004.
[10] Dragan Antic, Marko Milojkovic, Sasa Nikolic, "Fuzzy Sliding Mode
Control with Additional Fuzzy Control Component" Facta Universitatis,
Series: Automatic Control and Robotics Vol. 8, No 1, 2009, pp. 25 - 34.