Experimental Microgrid Setup for the Validation of Converters Coordination Methods for Ancillary Services Provision

This work presents an experimental testbench for the validation of converters coordination algorithms for the provision of ancillary services in microgrids. It includes eight 22 kW three-phase ac converters and two dc sources, enabling the emulation of a wide variety of realistic microgrid scenarios. Emphasis is put on the methodological approach adopted for the testbench design and implementation. Key aspects such as control layer integration and communication architecture are described. The setup offers a flexible and modular framework for the validation of advanced grid-support functionalities beyond the one considered, such as low-voltage ride through or microgrid islanding. The testbench is demonstrated considering the experimental validation of a recently developed coordination algorithm for distributed grid-forming converters.