A Novel Design of FRT Strategy and Proportional Resonant Controller for Three Phase Grid connected PV System (original) (raw)

2018 International Conference on Power Generation Systems and Renewable Energy Technologies (PGSRET), 2018

Abstract

This paper presents a new fault ride through (FRT) strategy to optimize the electrical parameters during Symmetrical and Asymmetrical faults for 3 phase grid-connected photovoltaic system (PVS). MATLAB simulations are carried out to analyze various abnormalities at point of common coupling (PCC) for 100 kW grid connected PVS. Proportional-resonant controller (PR) is also designed in detail. The simulation results during fault conditions with FRT and without FRT strategy are critically and analytically compared for both PR and conventionally tuned PI (proportional-integrator) controllers. The simulation results of PR controller with proposed FRT strategy effectively validated fast, stable, oscillation free, and robust response for Symmetrical and Asymmetrical faults in comparison with prior works.

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