Comparison of 2- and 3-level active filters with enhanced bridge-leg loss distribution

Thiago B. Soeiro, Mario Schweizer, Jörgen Linner, Per Ranstad, Johann W. Kolar

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

17 Citations (Scopus)

Abstract

In this paper an efficiency comparison between 3-phase shunt active filters derived from the 2-level VSC, the 3-level NPC, Active NPC (A-NPC) and the T-type VSC is presented. In order to address the loss distribution issue of the 3-level topologies, while keeping the efficiency of the system high, a space vector modulation scheme incorporating a special clamping of the phase is proposed. It is shown that 3-level active filters can have their losses well distributed over the chip dies, leading to only a small difference in their operating temperatures. Additionally, a semiconductor area based comparison is used to further evaluate the studied active filter systems. Finally, experimental results obtained with a 12kVAr/48kHz 3-level NPC based shunt active filter employing custom SiC power modules are presented in order to demonstrate the performance and feasibility of this solution.

Original languageEnglish
Title of host publication8th International Conference on Power Electronics - ECCE Asia
Subtitle of host publication"Green World with Power Electronics", ICPE 2011-ECCE Asia
Pages1835-1842
Number of pages8
DOIs
Publication statusPublished - 31 Aug 2011
Externally publishedYes
Event8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia - Jeju, Korea, Republic of
Duration: 30 May 20113 Jun 2011

Publication series

Name8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia

Conference

Conference8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia
CountryKorea, Republic of
CityJeju
Period30/05/113/06/11

Keywords

  • Active filter
  • space vector modulation

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