Robust Proportional–Integral Sliding Mode Control for Induction Motors with Input Time Delay

Saulo Crnkowise Garcia (), Lucas Carvalho Souza, Luciano de Souza da Costa e Silva and Falcondes José Mendes de Seixas ()
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Saulo Crnkowise Garcia: Mato Grosso do Sul Federal Institute of Education, Science, and Technology, Três Lagoas 79641-162, MS, Brazil
Lucas Carvalho Souza: Power Electronics Laboratory—LEP Electrical Engineering Department, São Paulo State University—UNESP, Ilha Solteira 15385-000, SP, Brazil
Luciano de Souza da Costa e Silva: Mato Grosso do Sul Federal Institute of Education, Science, and Technology, Três Lagoas 79641-162, MS, Brazil
Falcondes José Mendes de Seixas: Power Electronics Laboratory—LEP Electrical Engineering Department, São Paulo State University—UNESP, Ilha Solteira 15385-000, SP, Brazil

Energies, 2023, vol. 16, issue 15, 1-21

Abstract: This paper proposes a control strategy applied to a three-phase induction motor (TIM) subject to parametric uncertainties, perturbations, and input time delay, whose primary objective is to achieve high-performance speed–torque control. The control design involves a predictive sliding mode observer (P-SMO) and a robust proportional–integral sliding mode control (PISM), aimed at reducing the detrimental effects of time delay and perturbations. The proposed control strategy’s effectiveness is investigated through computational simulations, carried out for different scenarios, whose distinctions focus on the consideration of delay in the feedback signals, the predictive character of the sliding mode observer, and the type of controller used. The presented results show the superior performance of the PISM controller compared with the classic PI controller for all tested scenarios. In the test scenario that considers the transport delay in the feedback signals, the sliding mode observer (SMO) without prediction does not stabilize the system, requiring the application of P-SMO to ensure stability and accurate tracking of the TIM speed reference.

Keywords: field oriented control; induction motor; input time delay; proportional–integral control; sliding mode control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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