R&D Test Systems has completed the EUDP-funded MERGE project (Megawatt Scalable Versatile Grid Emulation System), in collaboration with Aalborg University. The project focused on developing grid emulation hardware and software to support compliance with grid codes across different countries.
The research advanced modular multilevel converter (MMC)-based grid emulators, addressing challenges related to dynamic behaviour, control improvements, and prototype validation. The project developed control schemes to replicate grid conditions such as voltage sags, frequency deviations, harmonic distortions, and impedance variations, ensuring realistic testing for power generation equipment.
The final phase of the project resulted in R&D Test Systems securing its first grid emulator order from Nordex, demonstrating the practical application of the research. The company will continue focusing on system integration and digital solutions, including hybrid testing and digital twins. The findings from MERGE are expected to contribute to future megawatt-scale grid emulators, improving grid stability and facilitating the integration of renewable energy sources.
