The research project, conducted in collaboration with Hydro-Québec, aims to create a control interface that links real-time electrical grid simulations to renewable energy generation devices for testing purposes. This system will facilitate safe, efficient, and cost-effective testing of these technologies, enabling their integration into the grid and supporting the shift to cleaner energy sources. The design of the interface will leverage the tools of robust control theory to ensure stability and performance despite uncertainties in both the simulated grid and physical devices. After development, it will be validated using Hydro-Québec's infrastructure. This presentation aims to explain how, to date, an interface was designed for nominal operating conditions of the grid and device, and how such a design is insufficient for real-world application.