Analysis and Mitigation of Sub-Synchronous Control Interaction in Grid-Forming Inverters with Virtual Synchronous Generator Control
Journal
2025 IEEE Industry Applications Society Annual Meeting (IAS)
Start Page
1-8
Date Issued
2025-06-15
Author(s)
Abstract
This study investigates sub-synchronous control interactions (SSCI) in grid-forming inverters (GFMIs) with virtual synchronous generator (VSG) control, identifying SSCI caused by self-capacitive impedance and cross-coupling negative resistance. An equivalent impedance model is developed to analyze SSCI mechanisms, and a damping control strategy is proposed to mitigate oscillations. Electromagnetic transient (EMT) simulations in MATLAB/Simulink validate the effectiveness of the damping controller, demonstrating successful suppression of sub-synchronous oscillations.
SDGs
Publisher
IEEE
Type
conference paper