Simulation analysis of a control system for a Solid-State Transformer

The basic idea of this work is to develop and test a control system for a solid-state transformer, interconnecting two distribution grids with also having the possibility of generating an isolated microgrid from the medium voltage grid. The system is modular and is easily adaptable to any power and voltage level, with different controllers for each subsystem.The system is assessed, through several MATLAB/Simulink simulations, for various operating points. The system is bidirectional and resilient to failures, being able to mitigate network anomalies, namely voltage and harmonic sags. When operating as an isolated microgrid, it can feed linear, non-linear, or unbalanced loads.