Active power control strategies for inverter-based distributed power generation adapted to grid-fault ride-through requirements

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Abstract

Distributed power generation is expected to deliver power into the grid without interruption during voltage dips. To improve system ride-through capabilities, a generalized active power control strategy is proposed for grid-interfacing inverters. Specifically, a current reference generation strategy based on symmetric-sequence components of unbalanced three-phase three-wire or four-wire systems is derived. It is shown that a single adjustable parameter can smoothly change the relative amplitudes of oscillating active and reactive power. This steering possibility enables grid-side inverters to optimally meet different requirements of coming standards. Simulations and experiments are carried out to validate the proposed strategy.
Original languageEnglish
Title of host publicationProceedings European conference on Power Electronics and Applications (EPE09), 8-10 September 2009, Barcelona, Spain
Place of PublicationBrussels
PublisherEPE
Pages1-10
ISBN (Print)9789075815009
Publication statusPublished - 2009

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