Description:The technological improvement has been a function of the integration of electronic devices and improvement of the manu-facturing processes. However, the hydraulic systems are still normally controlled by the opening and closing the fluid passages making them extremely dissipative and, therefore, with low efficiency. With the in-creasing awareness to obtain systems which have optimized energy consumption, the digital hydraulics emerges as a more efficient alterna-tive to conventional hydraulic systems. Aiming to achieve new designs of hydraulic positioning systems, this master’s thesis studies the applica-tion of a digital hydraulic system in position control applied in a test bench for wind turbines. From the steady state model presented in this master’s thesis, the optimization of the inertance tube and valve switch-ing frequency was possible.