Voltage Source Inverters (VSIs) are essential component for integration of renewable energy sources into utility grid or microgrid. Most of the utility grid regulation standards demand high quality sinusoidal current regulation by these inverters with renewable sources, which necessitates the use of LCL filters at the output of VSIs. Different load conditions and other factors influence grid conditions, such as voltage profile, harmonic distortion and frequency variation. The scope of this paper include comparison of effects on grid current of LCL filter based inverter while using PR controller and damped PR controller under distorted grid voltage and frequency variation conditions. The effects are analyzed through simulation studies in MATLAB/PLECS and real time simulation studies are carried out in Typhoon HIL environment.I.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.