Transient Stability Analysis of Droop-Controlled Grid-Connected Converters With Inertia Emulating Low-Pass Filters

Donghua Pan, Xiongfei Wang, Fangcheng Liu, Rongliang Shi

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Abstract

This paper presents a design-oriented transient stability analysis of a droop-controlled voltage-source converter (VSC), where the low-pass filters (LPFs) for inertia emulating are in focus. It reveals that the two LPFs in the active and reactive power loops take opposite effects on the transient stability: the former degrades the stability while the latter improves it. By means of the phase portrait, the mechanism behind this is explicitly elaborated, and the quantitative impacts of the inertia emulating terms are clearly identified. Subsequently, a design guideline of the LPFs for enhancing the transient stability is proposed. Finally, experimental results are provided to verify the theoretical analysis.
Original languageEnglish
Title of host publicationProceedings of 2019 IEEE Energy Conversion Congress and Exposition (ECCE)
Number of pages7
Place of PublicationBaltimore, Maryland, USA
PublisherIEEE Press
Publication dateSep 2019
ISBN (Print)978-1-7281-0396-9
ISBN (Electronic) 978-1-7281-0395-2
DOIs
Publication statusPublished - Sep 2019
Event2019 IEEE Energy Conversion Congress and Exposition - Baltimore, United States
Duration: 29 Sep 20193 Oct 2019
Conference number: 2019
http://www.ieee-ecce.org/2019/

Conference

Conference2019 IEEE Energy Conversion Congress and Exposition
Number2019
CountryUnited States
CityBaltimore
Period29/09/201903/10/2019
Internet address
SeriesIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

Keywords

  • Droop control
  • Large-signal disturbance
  • Transient stability
  • Virtual inertia
  • Voltage-source converter

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    Pan, D., Wang, X., Liu, F., & Shi, R. (2019). Transient Stability Analysis of Droop-Controlled Grid-Connected Converters With Inertia Emulating Low-Pass Filters. In Proceedings of 2019 IEEE Energy Conversion Congress and Exposition (ECCE) IEEE Press. IEEE Energy Conversion Congress and Exposition https://doi.org/10.1109/ECCE.2019.8912990