Feasibility and performance assessment of commercial PV inverters operating with droop control for providing voltage supports services

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Abstract

The proliferation of PV generation systems connected to electrical distribution systems (EDSs) brings many operational challenges, and within them, over-voltage issues are regarded as the most critical. Among all the strategies available to handle these over-voltage issues, those implemented locally at the PV inverters seem to be the more promising, considering their distributed and easy-to-implement features. In this paper, the feasibility and performance assessment of a commercial PV inverter for mitigating over-voltage events in an EDS is presented. To do this, an active and reactive droop-based voltage control strategy is implemented in a commercial inverter. Realtime power hardware-in-the-loop (PHIL) laboratory tests were performed to assess the PV inverter's efficiency when absorbing reactive power, as well as its interaction with the distribution grid. According to the obtained results, the PV inverter's efficiency was not noticeably affected by the changes in reactive power. Additionally, the PV inverter responded accordingly, following the voltage control strategy implemented, providing successfully the expected voltage support services.

Original languageEnglish
Title of host publicationProceedings of 2019 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2019
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages5
ISBN (Electronic)9781538682180
DOIs
Publication statusPublished - Sep 2019
Event2019 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2019 - Bucharest, Romania
Duration: 29 Sep 20192 Oct 2019

Conference

Conference2019 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2019
CountryRomania
CityBucharest
Period29/09/192/10/19

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Keywords

  • droop control
  • over-voltage events
  • PV inverters
  • real-time simulations

Cite this

Vergara, P. P., Mai, T. T., Burstein, A., & Nguyen, P. H. (2019). Feasibility and performance assessment of commercial PV inverters operating with droop control for providing voltage supports services. In Proceedings of 2019 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2019 [8905499] Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ISGTEurope.2019.8905499