The increase in power electronic based generation sources require accurate modeling of inverters. Accurate modeling requires experimental data over wider operation range. We used 20 kW off-the-shelf grid following PV inverter in the experiments. We used controllable AC supply and controllable DC supply to emulate AC and DC side characteristics. The experiments were performed at NREL's Energy Systems Integration Facility. Due to the limitations of the DC supply used, inverter is tested under 75%, 50%, 25% load conditions (This dataset does not contain 100% load condition). In the first dataset, for each operating condition, controllable AC source voltage is varied from 0.88 to 1.09 per unit (p.u) with a step value of 0.025 p.u while keeping the frequency at 60 Hz. In the second dataset, under similar load conditions (75%, 50%, 25% ), the frequency of the controllable AC source voltage was varied from 59.4 Hz to 60.45 Hz with a step value of 0.2 Hz. Voltage and frequency range is chosen based on inverter protection. Voltages and currents on DC and AC side are included in the dataset.
2 Data Resources
|Voltage step change||1.86 GB||Data||This file contains the experimental data from voltage magnitude step change (controllable AC source).|
|Frequency change||1.46 GB||Data||This file contains the dataset for changes in frequency (controllable AC source)|
• Jan • 06 2023
Power Systems Engineering
Cite This Dataset
Prabakar, Kumaraguru, Subhankar Ganguly, Yaswanth Nag Velaga, and Deepthi Vaidhynathan. 2023. "PV inverter experimental data." NREL Data Catalog. Golden, CO: National Renewable Energy Laboratory. Last updated: January 23, 2023. DOI: 10.7799/1914317.
About This Dataset
Scalable Multi-Timescale Analysis Platform Based on System Transient and Dynamic Models
Energy Systems Integration Facility (ESIF)
High Performance Computing Center (HPC)
Department of Energy (DOE)
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
Energy Systems Integration
Digital Object Identifier