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A new unity-gain 5-level active neutral-point-clamped (UG-5L-ANPC) inverter

A new unity-gain 5-level active neutral-point-clamped (UG-5L-ANPC) inverter
A new unity-gain 5-level active neutral-point-clamped (UG-5L-ANPC) inverter
The active neutral-point-clamped (ANPC) inverter is a popular multilevel inverter for various industry applications. In a recent attempt, an improved topology that integrates a flying capacitor to enhance the voltage gain from half to unity has been presented [11]. Retaining the benefit of unity-gain, this paper proposes a new ANPC topology with two improvements. Firstly, the voltage stress of the flying capacitor is reduced by half. Secondly, the charging of the flying capacitor at 0 level is made possible to achieve uniform charging over the power cycle. Comprehensive analysis is presented and experimental results of a prototype are presented for validation. Finally, the extension of the topology with increased number of output voltage levels generation is briefly discussed.
active neutral-point-clamped inverter, five-level, flying capacitor, multilevel inverter, unity-gain
213-217
Lee, Sze Sing
47f36964-db27-4f5e-a4d3-4b0ba78ce29e
Lim, Chee Shen
616d0697-a5d5-4079-adaa-6686e5a758fe
Siwakoti, Yam P.
03fea814-fdf5-410f-846e-e57a1cfbfdc9
Idris, Nik Rumzi Nik
45b54a20-e821-402c-9ac9-fcd9e82e3598
Alsofyani, Ibrahim Mohd
81d9f0e1-df0a-4557-a747-e3dfee22b919
Lee, Kyo-Beum
eed8c5c3-ed62-431d-8523-8c7b6411d159
Lee, Sze Sing
47f36964-db27-4f5e-a4d3-4b0ba78ce29e
Lim, Chee Shen
616d0697-a5d5-4079-adaa-6686e5a758fe
Siwakoti, Yam P.
03fea814-fdf5-410f-846e-e57a1cfbfdc9
Idris, Nik Rumzi Nik
45b54a20-e821-402c-9ac9-fcd9e82e3598
Alsofyani, Ibrahim Mohd
81d9f0e1-df0a-4557-a747-e3dfee22b919
Lee, Kyo-Beum
eed8c5c3-ed62-431d-8523-8c7b6411d159

Lee, Sze Sing, Lim, Chee Shen, Siwakoti, Yam P., Idris, Nik Rumzi Nik, Alsofyani, Ibrahim Mohd and Lee, Kyo-Beum (2019) A new unity-gain 5-level active neutral-point-clamped (UG-5L-ANPC) inverter. In Proceedings of 2019 IEEE Conference on Energy Conversion CENCON. pp. 213-217 . (doi:10.1109/CENCON47160.2019.8974836).

Record type: Conference or Workshop Item (Paper)

Abstract

The active neutral-point-clamped (ANPC) inverter is a popular multilevel inverter for various industry applications. In a recent attempt, an improved topology that integrates a flying capacitor to enhance the voltage gain from half to unity has been presented [11]. Retaining the benefit of unity-gain, this paper proposes a new ANPC topology with two improvements. Firstly, the voltage stress of the flying capacitor is reduced by half. Secondly, the charging of the flying capacitor at 0 level is made possible to achieve uniform charging over the power cycle. Comprehensive analysis is presented and experimental results of a prototype are presented for validation. Finally, the extension of the topology with increased number of output voltage levels generation is briefly discussed.

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More information

Published date: 2019
Venue - Dates: 4th 2019 IEEE Conference on Energy Conversion, Royal Ambarrukmo Hotel, Yogyakarta, Indonesia, 2019-10-16 - 2019-10-17
Keywords: active neutral-point-clamped inverter, five-level, flying capacitor, multilevel inverter, unity-gain

Identifiers

Local EPrints ID: 443148
URI: http://eprints.soton.ac.uk/id/eprint/443148
PURE UUID: 69916040-9cd9-442c-ab88-2a967c639230
ORCID for Sze Sing Lee: ORCID iD orcid.org/0000-0003-2455-5783

Catalogue record

Date deposited: 12 Aug 2020 16:32
Last modified: 14 Sep 2021 18:13

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Contributors

Author: Sze Sing Lee ORCID iD
Author: Chee Shen Lim
Author: Yam P. Siwakoti
Author: Nik Rumzi Nik Idris
Author: Ibrahim Mohd Alsofyani
Author: Kyo-Beum Lee

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