Power Quality (PQ) has long been a source of worry for utilities of all sizes. The development of power electronic devices has had a substantial impact on the quality of electric power supply. The operation of nonlinear loads generates harmonics, which reduces the quality of the distribution system. In such cases, both utilities and end users are concerned about power quality. This suggests that improving power quality requires just a few actions. This research focuses on UPQC, which is a combination of series and shunt active power filters. The series APF is used to decrease voltage-based distortions, while the shunt APF is used to reduce current-based distortions. UPQC concurrently and independently lowers voltage- and current-based aberrations. UPQC improves power quality by correcting harmonics as well as load current, resulting in sinusoidal source current and load voltage at the optimum voltage level. The simulations of the series APF, shunt APF, and UPQC were performed using MATLAB/Simulink.