Improving Power Quality of Distribution Grids Using Multilevel Converter-Based Unified Power Quality Conditioner

摘要

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.