Abstract

The Power Quality Analysis impacts of the grid-connected photovoltaic power plant on the harmonic current in the power quality aspect of the distribution network, Summaries the requirement of harmonic current injecting in grid caused by photovoltaic power plant which connected in user side. The grid-connected photovoltaic generation and then analyzes it by build models of photovoltaic generation and the power grid. At the same time, it can cause harmonics which result in waveform distortion and affect electronic devices that receive power. Then, it could make electronic device malfunction. This paper studies the characteristics of harmonics on the grid, PV system, and load. The result shows that most grids' harmonics are affected from PV system and load when the inverter power up to almost the rated power, meanwhile, percentages of harmonics are reduced and harmonics of load depend on the type of load. Next, comparing harmonics on three sides, and found that harmonics of PV system hardly affect to load and harmonics of the grid are more affected by load than PV system.

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