TY - JOUR T1 - Improving Power Quality of Distribution Grids Using Multilevel Converter-Based Unified Power Quality Conditioner AU - Farhadi, Masoud AU - Ghavidel, Pedram AU - Rahimi, Ramin AU - Hosseini, Seyed Hossein JO - Journal of Engineering and Applied Sciences VL - 11 IS - 4 SP - 772 EP - 777 PY - 2016 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2016.772.777 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2016.772.777 KW - Power quality KW -distribution grid KW -multilevel converter KW -UPQC KW -SPWM AB - Power Quality (PQ) is one of the major concerns in the power grids. Where various devices such as Dynamic Voltage Restorer (DVR) and Uninterruptible Power Supply (UPS) have been designed and used to control PQ although, these devices have satisfactory performance and they have some problems such as installation restriction and high cost. This study, proposes a multilevel converter-based Unified Power Quality Conditioner (UPQC) to solve the power quality disturbances. Impact of proposed UPQC on the power quality parameters is discussed in the IEEE 14-bus system. In order to verify the results, PSCAD/EMTDC Software is used to simulate the system. ER -