title: Performances improvements and torque ripple minimization for VSI fed induction machine with direct control torque.
abstract: This paper describes a torque ripple reduction technique with constant switching frequency for direct torque control (DTC) of an induction motor (IM). This method enables a minimum torque ripple control. In order to obtain a constant switching frequency and hence a torque ripple reduction, we propose a control technique for IM. It consists of controlling directly the electromagnetic torque by using a modulated hysteresis controller. The design methodology is based on space vector modulation (SVM) of electrical machines with digital vector control. MATLAB simulations supported with experimental study are used. The simulation and experimental results of this proposed algorithm show an adequate dynamic to IM; however, the research can be extended to include synchronous motors as well. The implementation of the proposed algorithm is described. It doesn't require any PI controller in the torque control loop. The hardware inverter is controlled digitally using a Texas Instruments TMS320F240 digital signal processor (DSP) with composed C codes for generating the required references. The results obtained from simulation and experiments confirmed the feasibility of the proposed strategy compared to the conventional one.
authors.affiliation: Department of Electrical Engineering, University of Bejaia, Route de targa Ouzemmour, Laboratory LTII, Algeria.
authors.forename: R
authors.initials: R
authors.lastname: Abdelli
authors.forename: D
authors.initials: D
authors.lastname: Rekioua
authors.forename: T
authors.initials: T
authors.lastname: Rekioua
mesh_terms: D000465:Algorithms; D004574:Electromagnetic Fields; D004738:Engineering / Q000379:methods; D007221:Industry / Q000379:methods*; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted; D019415:Torque