Although renewable energy is a good substitute for conventional energy, connecting it to the grid can provide new difficulties. Similarly, for wind turbines to keep the grid stable and reliable, they need to produce high-quality power. To reduce the harmful environmental effects of conventional energy generation, more wind turbines are being connected to the electrical grid. Understanding how disturbances affect the quality of the energy is important in order to connect a wind turbine to the grid. The voltage and frequency must be as stable as feasible. This stability can be obtained with FACTS devices. Inverters that are either voltage-source or current-source have been used recently to reduce oscillation in the power supply. Moreover, several of them are used to improve the transient and dynamic stability of wind power generating systems (WPGS). When a wind turbine is linked to the grid, it produces electrical switching behavior, voltage sag and swell, flashing and harmonic emissions, and active and reactive energy. A three-phase grid-linked wind-driven induction generator's reactive power requirement can be adjusted in a number of methods, such as by applying instantaneous pq theory and UPQC to adjust for harmonics produced by a non-linear load connected to the PCC. MATLAB/SIMULINK is used to simulate the FACTS Device UPQC control mechanism in order to improve power quality.