Low-frequency Resonances in Grid-Forming Converters: Causes and Damping
Control
Low-frequency Resonances in Grid-Forming Converters: Causes and Damping
Control
Grid-forming voltage-source converter (GFM-VSC) may experience low-frequency resonances, such as synchronous resonance (SR) and sub-synchronous resonance (SSR), in the output power. This paper offers a comprehensive study on the root causes of low-frequency resonances with GFM-VSC systems and the damping control methods. The typical GFM control structures are introduced first, …