Performance Analysis of Renewable Integrated UPQC

Abstract

The enhancement in electric power quality using a single-stage solar PV integrated Unified Power Quality Conditioner (UPQC) has been discussed in this paper. The UPQC is the combination of Distributed static compensator (DSTATCOM) and Dynamic Voltage Restorer (DVR) having the common DC voltage supply link. The DSTATCOM compensates for the load current associated problems like load power factor improvement, even and odd current harmonics elimination etc. Also, it performs the additional work of transferring power from the solar PV system to the load of the distribution system. The DVR compensates the voltage-associated power quality problems like source voltage sag, source voltage swell, and voltage distortion. Discussed UPQC with distributed generation system works on modified synchronously rotating reference frame theory. With the help of the discussed system, the two outcomes are achieved such as clean and renewable energy generation and power quality enhancement. The system is designed in MATLAB Simulink environment and then system performance is verified on Real-Time Digital Simulator (OPAL-RT OP4510) in Software in Loop Simulation (SIL) and Hardware in Loop Simulation (HIL) platforms.