J Control Autom Electr Syst DOI 10.1007/s40313-017-0334-y Sliding Mode Predictive Control of Induction Motor Fed by Five-Leg AC–DC–AC Converter with DC-Link Voltages Offset Compensation Mohamed Chebaani 1 · Amar Goléa 1 · Med Toufik Benchouia 1 · Noureddine Goléa 2 Received: 21 December 2016 / Revised: 19 June 2017 / Accepted: 19 July 2017 © Brazilian Society for Automatics–SBA 2017 Abstract This paper presents experimental performance improvement of induction motor fed by five-leg AC–DC– AC converter with DC-link voltages offset compensation. In order to control the rectifier, a sliding mode control approach is proposed to track the DC-link voltage. The grid-side con- verter control is performed via a predictive power control, which minimizes the instantaneous input reactive power present in the system and compensates the undesirable har- monic contents of the grid current, under a unity power factor. In motor side, the inverter control is performed via a predic- tive torque control to achieve an accurate torque and flux references tracking with ripples reduction. The implemen- tation of the proposed control architecture is achieved via a dSPACE 1104 card. The experimental results show that the proposed control strategy develops a faster active power response leading to low DC-link voltage variation, while the grid current is nearly sinusoidal with low total harmonic dis- tortion. Experimental results reveal also that the drive system, associated with PTC technique, can effectively reduce flux B Mohamed Chebaani dr.chebanimohamed@gmail.com Amar Goléa goleaamar1@yahoo.fr Med Toufik Benchouia benchouiat@yahoo.fr Noureddine Goléa nour_golea@yahoo.fr 1 LGEB Laboratory, Department of Electrical Engineering, Biskra University, Biskra, Algeria 2 LGEA Laboratory, Electrical Engineering Department, Oum El Bouaghi University, Oum El Bouaghi, Algeria and torque ripples with better dynamic and steady-state per- formance. Further, the proposed approaches minimize the average switching frequency. Keywords AC–DC–AC power converter · Induction motor · Sliding mode control · Predictive torque control · Total harmonic distortion · dSPACE 1104 1 Introduction AC Electrical machines have gained a distinctive interest by experts thanks to their ability to adapt to any environment and their efficiency. The induction machine is currently the most widely used electrical machine in both domestic and indus- trial applications. Its main advantage lies in its simplicity of mechanical and electrical design (absence of rotor winding (cage machine) and collector, simple structure, robust and easy to build etc.). However, these advantages are accom- panied by a high degree of physical complexity, linked to the electromagnetic coupling of stator and rotor variables. For a long time, IM was only used in constant-speed drives (Diab 2014). It is only after the revolution in computing capabilities and power electronics that IM enters the field of variable-speed drives. Specifically, the apparition of spe- cialized digital processors, such as digital signal processors (DSPs) and field programmable gate arrays (FPGAs), has simplified greatly experimental implementation of elabo- rated control techniques for variable-speed drives. It is not by chance that the work on the IM is the subject of intense research in several fields, for the synthesis of control laws, for the calculation and optimization of yield or for the devel- opment of a strategy of diagnosis and detection of failures. This is confirmed since the presence of IM is everywhere in all industrial sectors. 123