Fast selective harmonic mitigation in multifunctional inverters using internal model controllers and synchronous reference frames

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Abstract

This paper presents a fast selective harmonic current mitigation strategy for inverters with active power filter capabilities based in synchronous reference frames and twodegrees-of-freedom internal model controllers. The advantage of this control strategy over the conventional PI solution is a significant increase in the speed of harmonic detection and mitigation. Furthermore, this control strategy reduces the computational burden when applied in a digital controller. These characteristics make this strategy desirable for applications where fast/harmonic detection and mitigation are needed. Mathematical analysis and simulations are presented to corroborate the performance of the proposed controller strategy. Finally, the results of this proposal are verified in a 1kW 3-phase multifunctional inverter with harmonic compensation capabilities up to the 17th harmonic.
Original languageEnglish
Pages (from-to)6338-6349
Number of pages12
JournalIEEE Transactions on Industrial Electronics
Volume64
Issue number8
Early online date14 Mar 2017
DOIs
Publication statusPublished - 31 Aug 2017

Keywords

  • multifunctional inverter
  • active power filter
  • fast harmonic mitigation
  • synchronous reference frame

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