This project aims at the design and construction of a proof-of-concept power regulation system for wind turbines, based on a hydrostatic transmission coupling between the rotor and generator. The synchronous generator is grid-connected, and an electric motor is used to simulate the wind turbine rotor. The research project builds on previous studies conducted at LASHIP, where the conceptual design and dynamic modeling were performed. The system integrates with the grid using power electronics but without a frequency converter.