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An improved repetitive control for active power filters with three-level NPC inverter

  • Xi'an Jiaotong University
  • Huazhong University of Science and Technology

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

10 Scopus citations

Abstract

Due to the difficulty of handling nonlinear loads for traditional active power filter(APF) with two-level inverter in high voltage high power grid, this paper researches three-level active power filters. This paper presents an improved repetitive scheme to control the shape of ouput current waveform. The design process of each part in the repetitive controller is presented. Q(z) is designed as a notch zero phase shift filter which degrade the high order harmonic severely with close-to-unit gain at low and medium frequency band. The revised filter, the phase compensator and the repetitive gain is also given. The control method has fast dynamic convergence rate and little static misadjustment. The experiment results illustrate that the performance of the proposed approach is satisfactory.

Original languageEnglish
Title of host publication24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009
Pages1583-1588
Number of pages6
DOIs
StatePublished - 2009
Event24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009 - Washington, DC, United States
Duration: 15 Feb 200919 Feb 2009

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Conference

Conference24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009
Country/TerritoryUnited States
CityWashington, DC
Period15/02/0919/02/09

Keywords

  • Active power filter
  • Repetitive control
  • Three-level NPC inverter
  • Zero phase shift filter

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