Neutral-point voltage control of three-level NPC inverter for three-phase APF based on zero-sequence voltage injection

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

Active Power Filters (APF) have already adopted the three-level inverter topology in medium-voltage and high-power applications for solving power-quality problems. The Neutral-point voltage clamped (NPC) Inverter because of its robustness has become a matured and broadly used topology. It is necessary to maintain the neutral-point voltage at the DC-side as close to zero as possible. The focus of this paper is on the neutral-point voltage control of the three-level NPC inverter based on multicarrier PWM by manipulating the dwell time of small vectors by injecting a zero-sequence voltage into the modulating signal. The effectiveness of the presented method on a three-level NPC inverter is validated via simulation in MATLAB/Simulink. The results confirm the efficacy of the method in maintaining the neutral-point voltage at a minimum value with the desired overall good APF compensation characteristics.

Original languageEnglish
Title of host publication 2019 International Conference on Electrical Engineering Research & Practice (ICEERP)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-5
Number of pages5
ISBN (Electronic)9781728166575
ISBN (Print)9781728166582
DOIs
Publication statusPublished - 2019
Event2019 International Conference on Electrical Engineering Research and Practice, iCEERP 2019 - Sydney, Australia
Duration: 24 Nov 201928 Nov 2019

Conference

Conference2019 International Conference on Electrical Engineering Research and Practice, iCEERP 2019
CountryAustralia
CitySydney
Period24/11/1928/11/19

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Keywords

  • NPC inverter
  • APF
  • harmonic compensation
  • SPWM

Cite this

Kashif, M., Hossain, M. J., Sharma, V., Nawazish Ali, S. M., & Khan, A. (2019). Neutral-point voltage control of three-level NPC inverter for three-phase APF based on zero-sequence voltage injection. In 2019 International Conference on Electrical Engineering Research & Practice (ICEERP) (pp. 1-5). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICEERP49088.2019.8956988