Development of laboratory prototype of a 12kVA digital shunt active filter

N. G. Jayanti, Malabika Basu, Iurie Axente, Kevin Gaughan, Michael F. Conlon

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

Abstract

The paper reports the development of a laboratory prototype of a fully digital DSP controlled 12 kVA Shunt Active Filter (ShAF) capable of compensating for non-linear, unbalanced load and reactive power. A fully digital controller is implemented for the reference generation and the current control purposes. The delay problem in digital current controller is overcome by application of a fast DSP, a compact controller and proper flow of control steps in the DSP software. A Phase Locked Loop (PLL)-less software grid synchronization method has been proposed for the effective operation of the ShAF under the grid frequency variation. The source current THD has been improved from 15.8% to 4.45%. The control features, experimental setup, and results are presented in the paper.

Original languageEnglish
Title of host publicationProceedings - 34th Annual Conference of the IEEE Industrial Electronics Society, IECON 2008
PublisherIEEE Computer Society
Pages3129-3134
Number of pages6
ISBN (Print)9781424417667
DOIs
Publication statusPublished - 2008
EventIECON 2008 -
Duration: 10 Nov 200813 Nov 2008

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Conference

ConferenceIECON 2008
Period10/11/0813/11/08
Other34th IEEE Annual Conference on Industrial Electronics

Keywords

  • digital DSP controlled
  • Shunt Active Filter
  • non-linear load
  • unbalanced load
  • reactive power
  • digital controller
  • current control
  • Phase Locked Loop
  • grid synchronization
  • THD improvement
  • experimental setup
  • results

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