Sanghyuk Ji

Extended Kalman Filter–Linear Quadratic Regulator-Based Current Control for Dynamic Response Improvement and Robustness Enhancement of Grid-Forming Inverters

This paper proposes an EKF–LQR-based current controller to improve the performance and robustness of the current control loop in grid-forming inverters (GFMIs). Since load variations, power-reference changes, and grid-condition variations affect the dynamic characteristics of the output current in GFMIs, fast and stabl...