Robust Event-Triggered Output Feedback Learning Algorithm for Unknown Voltage Source Inverters

We consider the output feedback event-triggered control of an off-grid voltage source inverter (VSI) with unknown L ́ C filter dynamics and connected load in the presence of an input disturbance acting at the plant. Due to uncertain dynamics and unmodelled parameters in the L ́ C filter connected to the VSI, we use an adaptive observer to reconstruct the system’s states. The control mechanism is constructed based on an impulsive actor/critic framework that approximates the cost, the eventtriggered controller and the worst case disturbance and generates the desired AC output with the least energy dissipation. We provide rigorous stability proofs and illustrate the applicability of our results through an example.