Harmonic Analysis in PV Connected Power System

Abstract

In recent years it is shown in many researches that power quality problems in existing energy system are to be minimized for fulfillment of today's need of energy sector. In developing countries, per capita energy consumption is going to increase for upliftment of their living standards, and this increased per capita energy consumption can be met with incorporation of renewable energies in larger amount. Many of researchers have found their ways to incorporate renewable energies in existing energy sector worldwide, most of the renewable energy is utilized in energy sector as solar and wind. However, with incorporation of these renewable energy sources many power quality problems have also been introduced like as harmonic distortion, voltage sag and swell, interruption in current and voltages etc., and this affect the reliability of system. For better implementation of renewable energy sources in existing system, power quality problems are also to be reduced in the system. In this paper A PV system of 250kW has been modeled and connected to existing grid system. Further the harmonic analysis with PV system connected grid has been carried out and harmonic filters has been designed which are connected in parallel with PV system and existing system. The modeling is done in MATLAB simulink.