Universal Neutral Point Balancing Algorithm for Three-phase Three-level Converters with Hybrid of Zero-sequence Signal Injection and Virtual Zero-level Modulation

Jun Wang, Xibo Yuan, Kfir J. Dagan, Phil Mellor, David Drury, Andrew Bloor

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

3 Scopus citations

Abstract

This paper presents a new carrier-based voltage balancing scheme for three-phase, three-level converters. The proposed scheme utilizes two available degrees of freedom, Zero-sequence Signal Injection (ZSI) and Virtual Zero-level Modulation (VZM), to eliminate the low-frequency neutral point voltage oscillation. It is universally effective over the full power factor and modulation index range and easy to implement in digital controllers. The main drawback of VZM, increased switching loss due to additional switching transitions, is minimized in this scheme. Extra controllability is gained in the proposed hybrid scheme by utilizing two degrees of freedom at the same time. The performance of proposed scheme is evaluated through simulation models and an experimental test rig.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2200-2206
Number of pages7
ISBN (Electronic)9781479973118
DOIs
StatePublished - 3 Dec 2018
Externally publishedYes
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23 Sep 201827 Sep 2018

Publication series

Name2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Conference

Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/TerritoryUnited States
CityPortland
Period23/09/1827/09/18

Keywords

  • Carrier-based
  • Neutral point balancing
  • Power loss
  • Pulse width modulation
  • Three level converter

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization
  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems and Management

Fingerprint

Dive into the research topics of 'Universal Neutral Point Balancing Algorithm for Three-phase Three-level Converters with Hybrid of Zero-sequence Signal Injection and Virtual Zero-level Modulation'. Together they form a unique fingerprint.

Cite this