Robust Speed Control for Induction Motor Drives Using STSM Control
Mohammad Zand, Morteza Azimi Nasab, Mohammad Khoobani, Alireza Jahangiri, Seyed Hossein Hosseinian, Amir Hossein Kimiai
Abstract
The induction motors are the major motive force of industries. The emerging power electronics-based technologies have stimulated power engineers to design and use variable speed drives for controlling induction motors. In this paper, a super twisting sliding mode control (STSMC) is designed for direct torque and flux control for speed control of three-phase induction machines. Also, Lyapunov's theory has been used to secure the stability of the drive control system exposed to disturbances. As a variable control structure, the STSMC improves the robustness of the system exposed to modeling uncertainties and external perturbations. The simulation results in the MATLAB/Simulink platform indicate that it has lower ripple flux and torque values than the previous methods.