Data-driven-based Control Performance Degradation Online Recovery for Voltage Source Inverter: A PnP strategy

This paper presents a primary control strategy that can recover control performance online for the voltage source inverter (VSI) with inductor-capacitor (LC) filter. The control strategy contains a droop-based feedforward controller, an LQR-based state feedback controller and a data-driven residual compensation controller (FFR). An event-triggered mechanism based on stability margin is used to implement the plug-and-play (PnP) function of the residual compensation controller. Simulations show that FFR can realize uncertainty control and disturbance suppression and improve the dynamic performance, robustness and power distribution ability of the VSI system.