A Comparative Analysis of FACTS Devices for Power Quality Improvement

: According to a recent study, the load demand is rapidly increasing, causing more problems such as imbalance in the power system. Power electronics have major and essential role in the transmission, distribution and utilization of electricity and have the ability to process electricity potentially and economically. Although, the nonlinear operation of electrical devices introduces two important factors to the power system. They produce harmonics and affect the power factor of the system. Due to the uneven load, the system faces insufficient power consumption and affects the power quality. This requires system enhancements and is achieved by providing the adequate power transfer and power compensation to improve system performance. All of this can be done with FACTS devices. Some of the more advanced systems in this family are UPQC and DPFC. This paper compares how much system performance improves with and without these devices in balanced and unbalanced conditions using Simulink.