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A New PWM Control based on an Optimized Zero Sequence Component injection

Abstract : In this paper, a new optimization problem is proposed for improvement of PWM control of an inverter that supplies a generic RLE load. Two objectives functions are studied separately: Weighted Total Harmonic Distortion (WTHD) of load voltages and total losses. The gap contribution is related to optimize the zero sequence component waveform by defining special decision variables. By doing so, the proposed PWM strategy allows to improve the WTHD and efficiency of converters by keeping a classical PWM implementation scheme. Moreover this approach has the same way of thinking than the two main different classes of PWM strategies that are Space-Vector-based PWM (SVM) methods and classic carrierbased PWM methods (CBPWM). It is well known that there is an equivalence between SVM and CBPWM through the zero sequence component injection. So, optimized zero sequences are proposed for the two objectives functions considered, and the simulation results show a significant improvement compared to classical CBPWM strategies. Moreover the proposed strategy allows an implementation on existing hardware by modifying only the modulation component software.
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https://ut3-toulouseinp.hal.science/hal-03549023
Contributor : Maurice Fadel Connect in order to contact the contributor
Submitted on : Monday, January 31, 2022 - 10:54:29 AM
Last modification on : Friday, August 5, 2022 - 2:54:51 PM
Long-term archiving on: : Sunday, May 1, 2022 - 7:01:53 PM

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Adrien Bourgeade, Malek Ghanes, Maurice Fadel, Abdelkader Bouarfa, Jean-Pierre Barbot. A New PWM Control based on an Optimized Zero Sequence Component injection. IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society, Oct 2021, Toronto, Canada. 6 p., ⟨10.1109/IECON48115.2021.9589469⟩. ⟨hal-03549023⟩

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