Reactive Power Control of D-STATCOM in a Power Grid with Integration of the Wind Power

Indeed, the power grid has numerous challenges to keep the system stable, particularly with the appearance of renewable energy generation. With the aim of utilizing the natural environment and saving the operating costs of generation. The reactive or voltage control in the distribution system becomes essential. Wind turbines using frequency converters are generally suitable to control reactive power. To zero or potential to supply or consume reactive power as needed, although this is limited by the size of the converter. It is therefore important to use compensation devices to improve the system to achieve optimal operation is the solution to keep the power system in a stable state. We present in this paper the impact of DSTATCOM of-3MVAR to 3MVAR, 25 kV for enhancing the voltage stability in 120-kV, 60 Hz distribution networks with 9-MW wind generation feeding a variable load. The energetic response of D-STATCOM is followed by a MATLAB/Simulink, in which we can clearly detect an improvement in the magnitude of the load voltage, which was 0.5pu without FACTS, but is now 1pu after integrating the device. In the last part, we showed simulation results for electrical networks without and with D-STATCOM.