Observer-Based Current Controller for Virtual Synchronous Generator in Presence of Unknown and Unpredictable Loads

This article proposes an observer-based current controller for virtual synchronous generators (VSG) in the presence of unmeasured and unpredictable loads. First, considered models are described, notably selected VSG model, as well grid-connected inverter. Then, proposed is detailed, which consists a linear quadratic regulator incorporating integrator state observer. Finally, experimental results validate capacity solution, based on presented controller, to supply unknown loads represented nonlinear unbalanced loads, survive short circuits operate parallel with other power sources. extensive set tests proves relevance such wake industrialization necessity incorporate nonsimplified machine model advance, reactive controller.