Control of PV distributed systems based on three-phase triple inverters to support grids with unbalanced loads

V. Fernão Pires, Daniel Foito, Armando Cordeiro, J. Fernando Silva

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

Abstract

This paper is focused on the control system for photovoltaic (PV) generators using three-phase triple inverters. These inverters allow for a distributed PV system, and at the same time, they provide AC multilevel operation. The proposed controller is designed to allow the operation of the inverter in a way that it can extend support to the grid with ancillary services. One of the ancillary services that the three-phase triple inverter can support is the injection of unbalanced currents in order to eliminate or attenuate grid load unbalances. Therefore, the proposed topology will be extended to accommodate four wires. The capability of the system to support the grid with ancillary services, especially the compensation of unbalanced loads, the four-wire multilevel topology operation and the proposed controller will be verified through several simulation tests.

Original languageEnglish
Title of host publicationEUROCON 2021 - 19th IEEE International Conference on Smart Technologies, Proceedings
EditorsMariya Antyufeyeva
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages465-470
Number of pages6
ISBN (Electronic)978-1-6654-3299-3
ISBN (Print)978-1-6654-3300-6
DOIs
Publication statusPublished - 2021
Event19th IEEE International Conference on Smart Technologies, EUROCON 2021 - Lviv, Ukraine
Duration: 6 Jul 20218 Jul 2021

Conference

Conference19th IEEE International Conference on Smart Technologies, EUROCON 2021
Country/TerritoryUkraine
CityLviv
Period6/07/218/07/21

Keywords

  • Ancillary services
  • Multilevel inverter
  • PV systems
  • Three-phase triple inverter
  • Unbalanced loads

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