Robust IDA-PBC Control Design for Grid-Forming Converter

The dynamic performance of the controllers is crucial in obtaining stability for the power system. This paper proposes a robust interconnection and damping assignment-based passivity controller design using a port-controlled Hamiltonian model with effective dynamic performance, tracking, and power quality compared to a classical controller. Classical control is combined with modern control to compute the required damping resistances of the interconnection and the damping assignment-based passivity controller to enhance the system stability and robustness. The controller is implemented on a grid-forming converter with load variations, and the system is tested in MATLAB Simulink to validate the dynamic performance of the controller.