Title: High-performance direct torque and flux control of an induction motor drive using sliding-mode and fuzzy logic speed controllers

Authors: Anup Kumar Panda; Tejavathu Ramesh; S. Shiva Kumar

Addresses: Department of Electrical Engineering, National Institute of Technology Rourkela, Odisha, India ' Department of Electrical Engineering, National Institute of Technology Rourkela, Odisha, India ' Department of Electrical Engineering, National Institute of Technology Rourkela, Odisha, India

Abstract: In this research study, direct torque and flux control of an Induction Motor Drive (IMD) using Sliding-Mode Speed Controllers (SMSC) and Fuzzy-Logic Speed Controller (FLSC) are presented to achieve high performance of stator current, electromagnetic torque and motor speed in both transient as well as in steady-state conditions. The PI Speed Controller (PISC) gives good steady-state performance, but poor dynamic response. Therefore, the SMSC is considered to achieve continuous control of motor speed and also electromagnetic torque. Furthermore, FLSC is considered to get high performance, dynamic tracking and speed accuracy at various load torque conditions. The performances of each speed controller techniques are tested under various load toque and speed condition for its robustness. A detailed comparison of different control approaches are carried out in a MATALB/Simulink environment at different operating conditions, such as forward and reversal motoring with no-load, load, sudden change in speed and sudden zero speed.

Keywords: direct torque control; induction motor drives; fuzzy logic; fuzzy control; speed control; controller design; sliding mode control; flux control.

DOI: 10.1504/IJPELEC.2014.061470

International Journal of Power Electronics, 2014 Vol.6 No.2, pp.147 - 178

Available online: 26 May 2014 *

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