Journal
ACTUATORS
Volume 11, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/act11010018
Keywords
experimental validation; Induction Motor; Integral Sliding Mode Control; robustness; speed control
Funding
- University of the Basque Country (UPV/EHU) [PIF 18/127]
- [ELKARTEK KK-2021/00092]
- [GIU20/063]
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An enhanced Integral Sliding Mode Control (ISMC) for mechanical speed control of an Induction Motor (IM) is proposed and experimentally validated in this paper. By designing the controller in a specific framework and using an enhanced ISMC surface, global asymptotic speed tracking is guaranteed, with faster speed convergence rate and better steady-state error elimination compared to traditional methods and PI control methods.
In this paper, an enhanced Integral Sliding Mode Control (ISMC) for mechanical speed of an Induction Motor (IM) is presented and experimentally validated. The design of the proposed controller has been done in the d-q synchronous reference frame and indirect Field Oriented Control (FOC). Global asymptotic speed tracking in the presence of model uncertainties and load torque variations has been guaranteed by using an enhanced ISMC surface. Moreover, this controller provides a faster speed convergence rate compared to the conventional ISMC and the Proportional Integral methods, and it eliminates the steady-state error. Furthermore, the chattering phenomenon is reduced by using a switching sigmoid function. The stability of the proposed controller under parameter uncertainties and load disturbances has been provided by using the Lyapunov stability theory. Finally, the performance of this control method is verified through numerical simulations and experimental tests, getting fast dynamics and good robustness for IM drives.
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