Power quality measurement and analysis for grid-connected rooftop photovoltaic systems at NSRRC

NSRRC started its solar energy systems installation project in 2016 and began construction in early 2017. Solar modules have been gradually planned and installed on the rooftops of office, laboratory, and Utility buildings. The total installed capacity has now accumulated nearly 1.2MWp, and the total electricity generated to date has reached 10.8GWh, with a total carbon reduction of 5.7kt. This article will analyze and discuss various monitoring data (including voltage/current imbalance rate, harmonic distortion, active power, power factor, etc.) measured during the operation of the solar energy generation system in parallel with the power grid.