Model-Based Predictive Current Controllers in Multiphase Drives Dealing with Natural Reduction of Harmonic Distortion

Cristina Martin, Federico Barrero, Manuel R. Arahal and Mario J. Duran
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Cristina Martin: Electronic Engineering Department, University of Seville, 41092 Seville, Spain
Federico Barrero: Electronic Engineering Department, University of Seville, 41092 Seville, Spain
Manuel R. Arahal: System and Automatic Engineering Department, University of Seville, 41092 Seville, Spain
Mario J. Duran: Electrical Engineering Department, University of Malaga, 29071 Malaga, Spain

Energies, 2019, vol. 12, issue 9, 1-12

Abstract: An important drawback in the application of model-based predictive controllers for multiphase systems is the relatively high harmonic content. Harmonics arise due to the fixed sampling-time nature and the absence of modulation methods in the control technique. Recent research works have proposed different procedures to overcome this disadvantage at the expense of increasing the complexity of the controller and, in most cases, the computational requirements. There are, however, natural ways to face this harmonic generation that have been barely explored in the scientific literature. These alternatives include the use of variable sampling times or the application of the observer theory, whose utility has been stated without excessively increasing the computational cost of the controller. This paper presents the basis of both methodologies, analyzing their interest as natural alternatives to mitigate the generation of harmonic components in modern electrical drives when using predictive controllers. A five-phase induction machine is used as a case example to experimentally validate the study and draw conclusions.

Keywords: predictive current control; harmonic distortion; multiphase drives; observer; variable sampling (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: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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