The frequency regulation in microgrids plays a key role in the integration of wind turbines, ensuring grid stability amid fluctuations in energy production. With the help of advanced control systems, microgrids can adjust frequency in real time, compensating for variations caused by the intermittent nature of wind. This enables more efficient and reliable management of wind energy in local grids, enhancing their resilience and optimizing performance. This paper aims to examine and evaluate the capability of a variable speed wind turbine equipped with a doubly fed induction generator (DFIG) to assist in microgrid frequency regulation. To achieve this contribution, the wind turbine system must inject an additional power into the electrical microgrid if required. To do this, both techniques of frequency control are employed: the droop control and the synthetic inertia control. The first one consists of adopting a deloading operating mode allowing the variable speed wind turbine (VSWT) to constitute an active power reserve. The second consists of using the kinetic energy stocked in the rotors of the wind turbine and the generator. The linear active disturbance rejection control (ADRC) strategy, along with a classical PI controller, has been applied to control the converter of the DFIG rotor side (RSC), allowing it to provide support to the microgrid system during frequency disturbances by adjusting rotor speed. The performance of these controllers is evaluated and compared through simulations achieved by using MATLAB/Simulink software.