A generic method of Pulse Width Modulation applied to three-phase 3-Level T-type NPC inverter

Abstract : This paper illustrates the application of a solvingmethod of linear systems to a multilevel inverter. This study appliesa generic pulsewidth modulation (PWM) method to a multileveltopology. This method finally highlights some specific modulationschemes. First, the study describes the mathematical model of theinverter leg. The leg is made of three level T-type structure. Themodel is extended to the three-phase inverter. The generalized in-verse is used to generate the solution set of the conduction rates.Among the modulation strategies possible, three specific modula-tion schemes are proposed. The modulation schemes are applied tosimulate a PWM three-phase inverter. Finally, some experimentalresults complete the analysis.
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Simon Cailhol, Paul-Etienne Vidal, Frédéric Rotella. A generic method of Pulse Width Modulation applied to three-phase 3-Level T-type NPC inverter. IEEE Transactions on Industry Applications, Institute of Electrical and Electronics Engineers, 2018, 54 (5), pp.4515-4522. ⟨10.1109/TIA.2018.2829468⟩. ⟨hal-02106773⟩

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