Voltage Stress Reduction for New 3L-ANPC Modulation Scheme Using Both Current Paths in Zero State

Research output: Contribution to conferencesPaperContributedpeer-review

Contributors

Abstract

Various modulation schemes exist for the Active Neutral Point Clamped (ANPC) inverter that aim to distribute the power loss more evenly across all switches. This paper introduces a modulation scheme which uses both current paths in zero state simultaneously and thus distributes the conduction losses over the paralleled power devices. The switches belonging to the long commutation loop are turned off in zero voltage condition by introducing a dead time before turn on the second n-path or after switching it off respectively. During this modulation scheme an overvoltage occurs on the slow switching IGBTs. Execution of several experiments shows remaining charge carriers in the IGBT as reason. The method given in this paper aims to eliminate remaining charge carriers and decrease overvoltage to acceptable levels.

Details

Original languageEnglish
Pages1-7
Number of pages7
Publication statusPublished - 2023
Peer-reviewedYes

Conference

Title2023 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Abbreviated titlePCIM Europe 2023
Duration9 - 11 May 2023
LocationMesse Nürnberg
CityNürnberg
CountryGermany

External IDs

Scopus 85190101244

Keywords

ASJC Scopus subject areas