An advanced generalized PWM strategy for the control of a 3 × n matrix converter

Abstract

This work presents the essence of a scholarly effort aimed at harnessing the benefits of multi-phase induction motors in industrial sections stimulated by the rapid evolution of power electronics. The main point in this work is the adoption of matrix converters featuring a “n” phase output configuration, necessitating the development of novel control algorithms to govern the intricate switching mechanisms inherent in these converters. Among the array of algorithms under consideration, the PWM three intervals strategy emerges as a promising technique for modification and generalization to meet the needs of the 3 × n matrix converter paradigm. A comprehensive theoretical framework is demonstrated in its initial part, characterized by a meticulous exposition of formulations, mathematical derivations, and graphical representations. In this framework, the optimized output voltages designed to vary output phase configurations emanating from the specified triple input phases are used helpfully in the generalized PWM three-s intervals strategy. Subsequently, the article presents a practical demonstration focusing on the field-oriented control of multi-phase induction motors energized by multi-phase matrix converters. A rigorous analytical was performed to enhance the efficacy of the proposed generalized strategy, particularly in closed-loop control scenarios. The study undertakes a comprehensive validation process to confirm the theoretical hypotheses, thorough simulation-based assessments and experimental validation. The provided output results affirm the operational efficiency and efficacy of the proposed control strategy in its transformative potential in industrial motor control. Finally, the article confirms the intersection of power electronics and motor control in developing and validating a robust control strategy tailored to harness the advantages of multi-phase induction motors within industrial settings.