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

Muhammad Kashif, M. J. Hossain, Vivek Sharma, S. M. Nawazish Ali, Asif Khan

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

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
Country/TerritoryAustralia
CitySydney
Period24/11/1928/11/19

Keywords

  • NPC inverter
  • APF
  • harmonic compensation
  • SPWM

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