Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation

Zhuolin Jiang; Neha Beniwal; Salvador Ceballos; Josep Pou; Hossein Dehghani Tafti; Glen G. Farivar

doi:10.1109/IECON43393.2020.9255382

Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation

Zhuolin Jiang, Neha Beniwal, Salvador Ceballos, Josep Pou, Hossein Dehghani Tafti, Glen G. Farivar

Power Electronics and System Equipment

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

The neutral-point-clamped (NPC) converter employed in applications like bipolar dc-bus, back-to-back converters, power compensator, etc., requires a nonzero average neutral-point (NP) current injection under certain operating conditions. In order to better implement the average NP current injection, this paper studies the maximum and minimum average NP current that can be injected with an NPC converter. For this study, a three-level modulation technique is employed in which one of the three phases is selected to switch between the positive dc-rail and the negative dc-rail while the other two phases switch in two consecutive voltage levels. The maximum and minimum average NP current injection limits are analyzed under different loading conditions. The presented study also evaluates the effects of modulation index and operating power factor on the limits.

Original language	English
Title of host publication	Proceedings - IECON 2020
Subtitle of host publication	46th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE Computer Society
Pages	4079-4084
Number of pages	6
ISBN (Electronic)	9781728154145
DOIs	https://doi.org/10.1109/IECON43393.2020.9255382
Publication status	Published - 18 Oct 2020
Event	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Virtual, Singapore, Singapore Duration: 19 Oct 2020 → 21 Oct 2020

Publication series

Name	IECON Proceedings (Industrial Electronics Conference)
Volume	2020-October

Conference

Conference	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Country/Territory	Singapore
City	Virtual, Singapore
Period	19/10/20 → 21/10/20

Keywords

Neutral-point current
neutral-point-clamped (NPC) converter
three-level modulation

Access to Document

10.1109/IECON43393.2020.9255382

Cite this

Jiang, Z., Beniwal, N., Ceballos, S., Pou, J., Tafti, H. D., & Farivar, G. G. (2020). Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation. In Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society (pp. 4079-4084). Article 9255382 (IECON Proceedings (Industrial Electronics Conference); Vol. 2020-October). IEEE Computer Society. https://doi.org/10.1109/IECON43393.2020.9255382

Jiang, Zhuolin ; Beniwal, Neha ; Ceballos, Salvador et al. / Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation. Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, 2020. pp. 4079-4084 (IECON Proceedings (Industrial Electronics Conference)).

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title = "Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation",

abstract = "The neutral-point-clamped (NPC) converter employed in applications like bipolar dc-bus, back-to-back converters, power compensator, etc., requires a nonzero average neutral-point (NP) current injection under certain operating conditions. In order to better implement the average NP current injection, this paper studies the maximum and minimum average NP current that can be injected with an NPC converter. For this study, a three-level modulation technique is employed in which one of the three phases is selected to switch between the positive dc-rail and the negative dc-rail while the other two phases switch in two consecutive voltage levels. The maximum and minimum average NP current injection limits are analyzed under different loading conditions. The presented study also evaluates the effects of modulation index and operating power factor on the limits.",

keywords = "Neutral-point current, neutral-point-clamped (NPC) converter, three-level modulation",

author = "Zhuolin Jiang and Neha Beniwal and Salvador Ceballos and Josep Pou and Tafti, {Hossein Dehghani} and Farivar, {Glen G.}",

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doi = "10.1109/IECON43393.2020.9255382",

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Jiang, Z, Beniwal, N, Ceballos, S, Pou, J, Tafti, HD & Farivar, GG 2020, Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation. in Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society., 9255382, IECON Proceedings (Industrial Electronics Conference), vol. 2020-October, IEEE Computer Society, pp. 4079-4084, 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020, Virtual, Singapore, Singapore, 19/10/20. https://doi.org/10.1109/IECON43393.2020.9255382

Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation. / Jiang, Zhuolin; Beniwal, Neha; Ceballos, Salvador et al.
Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, 2020. p. 4079-4084 9255382 (IECON Proceedings (Industrial Electronics Conference); Vol. 2020-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Pou, Josep

AU - Tafti, Hossein Dehghani

AU - Farivar, Glen G.

PY - 2020/10/18

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N2 - The neutral-point-clamped (NPC) converter employed in applications like bipolar dc-bus, back-to-back converters, power compensator, etc., requires a nonzero average neutral-point (NP) current injection under certain operating conditions. In order to better implement the average NP current injection, this paper studies the maximum and minimum average NP current that can be injected with an NPC converter. For this study, a three-level modulation technique is employed in which one of the three phases is selected to switch between the positive dc-rail and the negative dc-rail while the other two phases switch in two consecutive voltage levels. The maximum and minimum average NP current injection limits are analyzed under different loading conditions. The presented study also evaluates the effects of modulation index and operating power factor on the limits.

AB - The neutral-point-clamped (NPC) converter employed in applications like bipolar dc-bus, back-to-back converters, power compensator, etc., requires a nonzero average neutral-point (NP) current injection under certain operating conditions. In order to better implement the average NP current injection, this paper studies the maximum and minimum average NP current that can be injected with an NPC converter. For this study, a three-level modulation technique is employed in which one of the three phases is selected to switch between the positive dc-rail and the negative dc-rail while the other two phases switch in two consecutive voltage levels. The maximum and minimum average NP current injection limits are analyzed under different loading conditions. The presented study also evaluates the effects of modulation index and operating power factor on the limits.

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Jiang Z, Beniwal N, Ceballos S, Pou J, Tafti HD, Farivar GG. Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation. In Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society. 2020. p. 4079-4084. 9255382. (IECON Proceedings (Industrial Electronics Conference)). doi: 10.1109/IECON43393.2020.9255382

Analysis of the Average Neutral-Point Current Limits of the Neutral-Point-Clamped Converter under Three-Level Modulation

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