Journal of Modern Power Systems and Clean Energy

ISSN 2196-5625 CN 32-1884/TK

A Systematic Small-signal Analysis Procedure for Improving Synchronization Stability of Grid-forming Virtual Synchronous Generators
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Department of Electrical Engineering, University of Seville, 41004 Sevilla, Spain

Fund Project:

This work was supported by Grant PID2021-124571OB-I00 funded by MICIU/AEI/10.13039/501100011033 and by FEDER, EU.

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    Abstract:

    The integration of converter-interfaced generators (CIGs) into power systems is rapidly replacing traditional synchronous machines. To ensure the security of power supply, modern power systems require the application of grid-forming technologies. This study presents a systematic small-signal analysis procedure to assess the synchronization stability of grid-forming virtual synchronous generators (VSGs) considering the power system characteristics. Specifically, this procedure offers guidance in tuning controller gains to enhance stability. It is applied to six different grid-forming VSGs and experimentally tested to validate the theoretical analysis. This study concludes with key findings and a discussion on the suitability of the analyzed grid-forming VSGs based on the power system characteristics.

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History
  • Received:March 23,2024
  • Revised:July 16,2024
  • Adopted:
  • Online: January 24,2025
  • Published: