Control of Hydraulic Wind Power Transfer System Under Wind and Load Disturbances

Hydraulic wind power transfer systems deliver the wind energy from multiple wind turbines to a centralized generator through a hydraulic medium, which effectively reduces the equipment and maintenance costs. In this system, the main generator should be remained at a constant rotational velocity regardless of the rotor speed to provide a fixed electrical voltage to the grid. To achieve this, a proportional valve is used to control the amount of flow between the main and auxiliary generators. In this paper, a controller is designed, simulated, and implemented to regulate the flow in the proportional valve. The control system is tested in MATLAB/Simulink and experimentally validated using dSPACE 1104.