Grid-connected converters with voltage support using only local measurements

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Abstract

This paper considers a single-phase grid-connected converter in the presence of non-linear loads. A local voltage support strategy is proposed to compensate the harmonics caused by the loads. This is an added feature implemented in parallel with a conventional current control method, and distinctively, it does not need measurements of the grid or load current. The converter output current consists of two components: a part at the fundamental frequency for power injection, and a part to compensate the harmonics introduced by the non-linear loads. As a result, the grid current harmonic distortion is minimized and the local voltage quality is enhanced. Simulation and experiments validate the effectiveness of the proposed voltage support strategy.
Original languageEnglish
Title of host publication8th IEEE International Symposium on Power Electronics for Distributed Generation, 17-20 April 2017, Florianopolis, Brazil
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages1-8
ISBN (Electronic)978-1-5090-5339-1
ISBN (Print)978-1-5090-5340-7
DOIs
Publication statusPublished - 11 Jul 2017

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