Active Damping of Power Control for Grid-Forming Inverters in LC Resonant Grids

Shiyi Liu, Heng Wu, Xiongfei Wang, Theo Bosma, Jos van der Burgt , Ganesh Sauba, Ravi Singh

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review


This paper derives the small-signal model of grid-forming (GFM) inverters considering the presence of the shunt capacitor in the power grid. It is found that the shunt capacitor introduces two additional resonant peaks in the loop gain of power control loops, in addition to the fundamental-frequency resonant peak that is identified in the prior art. Based on the findings, the active damping control is modified to dampen all three resonant peaks to guarantee the stable operation of GFM inverters. Finally, simulations and experimental tests are carried out to corroborate the theoretical findings.

Original languageEnglish
Title of host publication2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Publication date30 Jul 2022
ISBN (Electronic)9781728193878
Publication statusPublished - 30 Jul 2022
SeriesIEEE Energy Conversion Congress and Exposition


  • Grid-forming
  • active damping
  • power control
  • small-signal model
  • stability
  • voltage-source inverters


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