DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination-PWM

Alain Sanchez-Ruiz; Mikel Mazuela; Hector Fernandez-Rebolleda; Salvador Ceballos; Angel Perez-Basante; Irati Ibanez-Hidalgo; Markel Zubiaga; Josep Pou; Neha Beniwal; Georgios Konstantinou

doi:10.1109/TIE.2021.3113019

DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination-PWM

Alain Sanchez-Ruiz^*, Mikel Mazuela, Hector Fernandez-Rebolleda, Salvador Ceballos, Angel Perez-Basante, Irati Ibanez-Hidalgo, Markel Zubiaga, Josep Pou, Neha Beniwal, Georgios Konstantinou

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Selective harmonic elimination-pulsewidth modulation (SHE-PWM) is a modulation technique widely used to improve the efficiency and harmonic content in medium-voltage high-power converters. Among these converters, the three-level neutral-point-clamped (3L-NPC) converter is one of the most utilized topologies. However, the 3L-NPC converter requires a proper balancing of dc-link capacitor voltages. This article presents a control technique, based on pulse shifting method, to regulate the neutral point voltage when SHE-PWM is utilized. The proposed technique performs well with any power factor and it can also be directly applied to T-type converters and easily extrapolated to other multilevel topologies. The proposed method is experimentally validated in a scaled-down power converter and a full-scale medium-voltage 3L-NPC converter.

Original language	English
Pages (from-to)	8633-8644
Number of pages	12
Journal	IEEE Transactions on Industrial Electronics
Volume	69
Issue number	9
DOIs	https://doi.org/10.1109/TIE.2021.3113019
Publication status	Published - Sept 1 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 1982-2012 IEEE.

ASJC Scopus Subject Areas

Control and Systems Engineering
Electrical and Electronic Engineering

Keywords

DC-link voltage control
modulation
neutral-point control
neutral-point-clamped (NPC) converter
selective harmonic elimination (SHE)
voltage source converters (VSCS)

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10.1109/TIE.2021.3113019

Cite this

Sanchez-Ruiz, A., Mazuela, M., Fernandez-Rebolleda, H., Ceballos, S., Perez-Basante, A., Ibanez-Hidalgo, I., Zubiaga, M., Pou, J., Beniwal, N., & Konstantinou, G. (2022). DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination-PWM. IEEE Transactions on Industrial Electronics, 69(9), 8633-8644. https://doi.org/10.1109/TIE.2021.3113019

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title = "DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination-PWM",

abstract = "Selective harmonic elimination-pulsewidth modulation (SHE-PWM) is a modulation technique widely used to improve the efficiency and harmonic content in medium-voltage high-power converters. Among these converters, the three-level neutral-point-clamped (3L-NPC) converter is one of the most utilized topologies. However, the 3L-NPC converter requires a proper balancing of dc-link capacitor voltages. This article presents a control technique, based on pulse shifting method, to regulate the neutral point voltage when SHE-PWM is utilized. The proposed technique performs well with any power factor and it can also be directly applied to T-type converters and easily extrapolated to other multilevel topologies. The proposed method is experimentally validated in a scaled-down power converter and a full-scale medium-voltage 3L-NPC converter.",

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Sanchez-Ruiz, A, Mazuela, M, Fernandez-Rebolleda, H, Ceballos, S, Perez-Basante, A, Ibanez-Hidalgo, I, Zubiaga, M, Pou, J, Beniwal, N & Konstantinou, G 2022, 'DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination-PWM', IEEE Transactions on Industrial Electronics, vol. 69, no. 9, pp. 8633-8644. https://doi.org/10.1109/TIE.2021.3113019

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AU - Sanchez-Ruiz, Alain

AU - Mazuela, Mikel

AU - Fernandez-Rebolleda, Hector

AU - Ceballos, Salvador

AU - Perez-Basante, Angel

AU - Ibanez-Hidalgo, Irati

AU - Zubiaga, Markel

AU - Pou, Josep

AU - Beniwal, Neha

AU - Konstantinou, Georgios

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N2 - Selective harmonic elimination-pulsewidth modulation (SHE-PWM) is a modulation technique widely used to improve the efficiency and harmonic content in medium-voltage high-power converters. Among these converters, the three-level neutral-point-clamped (3L-NPC) converter is one of the most utilized topologies. However, the 3L-NPC converter requires a proper balancing of dc-link capacitor voltages. This article presents a control technique, based on pulse shifting method, to regulate the neutral point voltage when SHE-PWM is utilized. The proposed technique performs well with any power factor and it can also be directly applied to T-type converters and easily extrapolated to other multilevel topologies. The proposed method is experimentally validated in a scaled-down power converter and a full-scale medium-voltage 3L-NPC converter.

AB - Selective harmonic elimination-pulsewidth modulation (SHE-PWM) is a modulation technique widely used to improve the efficiency and harmonic content in medium-voltage high-power converters. Among these converters, the three-level neutral-point-clamped (3L-NPC) converter is one of the most utilized topologies. However, the 3L-NPC converter requires a proper balancing of dc-link capacitor voltages. This article presents a control technique, based on pulse shifting method, to regulate the neutral point voltage when SHE-PWM is utilized. The proposed technique performs well with any power factor and it can also be directly applied to T-type converters and easily extrapolated to other multilevel topologies. The proposed method is experimentally validated in a scaled-down power converter and a full-scale medium-voltage 3L-NPC converter.

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DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination-PWM

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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