Fast Reactive Power Control for Grid-Following Converters with Reactive Power Feed-Forward and Dynamic Integral Coefficients

With the ongoing advancements in renewable energy technologies and their integration into the power grid, traditional power systems are evolving into high-penetration renewable energy systems, necessitating significant changes in stability control and operational optimization. This study focuses on grid-following converters, which currently dominate the power grid, highlighting their critical role in maintaining system stability. The research explores various reactive power control strategies, emphasizing their impact on converter performance, and proposes an improved control structure to enhance reactive voltage support. By analyzing the influence of control parameter settings, the study demonstrates how these improvements can enhance the responsiveness of converters to grid fluctuations. Simulation on Simulink results validate the proposed control methods, illustrating their effectiveness in optimizing the performance of grid-following converters, thereby contributing to the overall stability of power systems with high renewable energy integration.