Current harmonic minimization of a grid-connected photovoltaic 500kW three-phase inverter using PR control

Byeong-Mun Song,Youngroc Kim,Hanju Cha,Hakju Lee

doi:10.1109/ecce.2011.6063891

Current harmonic minimization of a grid-connected photovoltaic 500kW three-phase inverter using PR control

Byeong-Mun Song, Youngroc Kim + Show 2 more

https://doi.org/10.1109/ecce.2011.6063891

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Publication Date: Sep 1, 2011

Citations: 26

Affiliation: Baylor University, Chungnam National University, Korea Electric Power Corporation (South Korea)

#Proportional Resonant Controller #Current Harmonics + Show 8 more

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Abstract

This paper presents a new current control strategy to minimize the current harmonics of a photovoltaic (PV) 500kW three-phase inverter using a proportional resonant (PR) controller. The new PR current control strategy is developed and implemented to a grid-connected three-phase inverter with LC filter. The controller resulted in a low current total harmonics distortion (THD) of 3% to meet the grid requirement. For the validation, simulation and experimental results showed that the proposed PR controller achieved a low THD over a wide range of operation under 500kW power flow. The detail design of the proposed controller is presented.

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